{"id":5468,"date":"2023-08-27T18:27:28","date_gmt":"2023-08-27T13:27:28","guid":{"rendered":"https:\/\/myelectricsparks.com\/?p=5468"},"modified":"2023-08-27T18:29:46","modified_gmt":"2023-08-27T13:29:46","slug":"interface-oled-display-with-esp32","status":"publish","type":"post","link":"https:\/\/myelectricsparks.com\/interface-oled-display-with-esp32\/","title":{"rendered":"How to Interface oled display with Esp32 ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"5468\" class=\"elementor elementor-5468\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e6c6dca elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e6c6dca\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-875a635\" data-id=\"875a635\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff7dbbe elementor-widget elementor-widget-image\" data-id=\"ff7dbbe\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.21.0 - 25-04-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/ESP32-Arduino-OLED-Display-Image.jpg\" title=\"\" alt=\"How to Interface oled display with Esp32\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-73fa522\" data-id=\"73fa522\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-122109e elementor-widget elementor-widget-text-editor\" data-id=\"122109e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.21.0 - 25-04-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">This tutorial will show you how to Interface Esp32 display with oled\u00a0Development Board.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">This project uses an OLED Graphic Display that is based on SSD1306 OLED driver IC. It communicates via SPI.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">Use ESP32 with OLED for text, bitmap images, graphics, etc. in your DIY project.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9d89b5 elementor-widget elementor-widget-share-buttons\" data-id=\"e9d89b5\" data-element_type=\"widget\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t \t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-acd0fd2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"acd0fd2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e419933\" data-id=\"e419933\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f6c44f7 elementor-widget elementor-widget-heading\" data-id=\"f6c44f7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.21.0 - 25-04-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Introduction<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-3be2e4c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3be2e4c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-c8a2eb8\" data-id=\"c8a2eb8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ebfc6f elementor-widget elementor-widget-text-editor\" data-id=\"1ebfc6f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"5\">OLED, or Organic <a href=\"https:\/\/myelectricsparks.com\/light-emitting-diode\/\">Light Emitting Diode<\/a>, is an advanced display technology that uses a layer of organic compound between two electrodes (anode &amp; cathode). When voltage is applied across these electrodes, the organic material emits light.<\/span><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">OLED Displays are unique because they emit their own light and don&#8217;t require any additional backlight.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">OLED Displays are often brighter, more contrasty, and have better viewing angles than LCD displays.<\/span><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">OLED Displays also have a feature called deep black.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">Each pixel in OLED Displays emits its own light, so each pixel can be turned OFF to create black color.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8dbcfac elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8dbcfac\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-12ddc77\" data-id=\"12ddc77\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f1038cd elementor-widget elementor-widget-heading\" data-id=\"f1038cd\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Introducing 0.96 inch OLED Display<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b49995d elementor-widget elementor-widget-text-editor\" data-id=\"b49995d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">This tutorial will use the\u00a0<a href=\"https:\/\/makeradvisor.com\/tools\/oled-display-128x64-0-96-inch\/\">OLED display<\/a>\u00a0model, which is a mono-color display measuring 0.96 inches and 128&#215;64 pixels.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"1\">Comparable to other displays.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f77587 elementor-widget elementor-widget-image\" data-id=\"3f77587\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/ssd1306-oled-display-arduino.jpg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28811c2 elementor-widget elementor-widget-text-editor\" data-id=\"28811c2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">OLED displays don&#8217;t need a backlight which makes them very visible in dark environments.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">OLED displays consume less energy than other displays because they only use energy when they are turned on.<\/span><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"4\">Our model has four pins and can communicate with any microcontroller that uses the I2C communication protocol.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">Some models come with an additional reset pin, while others communicate using the SPI protocol.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5a6c40ed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5a6c40ed\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-aa7667c\" data-id=\"aa7667c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d5311b8 elementor-widget elementor-widget-text-editor\" data-id=\"6d5311b8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2>A Brief Note on Interface Esp32 display with oled<\/h2><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">Are you interested in using an OLED Display for your DIY Projects?<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"12\">You might want to display important information such as IP Address and Web Server Address on a display.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">The SSD1306 OLED Display Module will do the trick.<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-5589 aligncenter\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/SPI-OLED-Display-Module-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"14\">This module is a Monochrome OLED Display that has a resolution of 128 pixels by 64 Pixels.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">It measures 0.96 inches diagonally.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"7\">This OLED Display uses the SSD1306 OLED Driver IC.\u00a0<\/span><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"10\">Three types of communication interfaces are available for SSD1306 OLED Displays:<\/span><\/p><ul style=\"text-align: justify;\"><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">8-bit Parallel Interface 6800<\/span><\/li><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">3 or 4 wire SPI<\/span><\/li><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">I\u00a0<sup>2<\/sup>C<\/span><\/li><\/ul><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"17\">The I\u00a0<sup>2<\/sup>C OLEDs and the SPI-type OLEDs are most common.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"18\">You can change the configuration of an SPI OLED from I 2 C to I C by soldering\/de-soldering SMD resistors.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">This model uses 4-wire SPI Communication.<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5590 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/SPI-OLED-Display-Module-Front-Back.jpg\" alt=\"\" width=\"476\" height=\"196\" \/><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"16\">The SSD1306 OLED Driver IC is 128 x 64-bit Graphic Display Data RAM (GDDRAM).<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"15\">Each page contains 128 segments. It is divided into 8 pages (PAGE 0 through Page 7).<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"11\">Each segment is 8-bits long and represents one pixel on the display.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"13\">So 8 Pages * 128 Session * 8 Bits = 8192 bits (1024 Bytes).<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5591 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/SSD1306-RAM.jpg\" alt=\"\" width=\"1000\" height=\"287\" \/><\/p><h2>Serial OLED Display SSD1306 Pin Wiring<\/h2><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"7\">The wiring of the serial OLED display is easy because it uses the I2C communication protocol.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">The following table can be used as a guide.<\/span><\/p><table><tbody><tr><td><strong>Pin<\/strong><\/td><td><strong>ESP32<\/strong><\/td><\/tr><tr><td>Vin<\/td><td><span class=\"rnthl rntcred\">3.3V<\/span><\/td><\/tr><tr><td>GND<\/td><td><span class=\"rnthl rntcblack\">GND<\/span><\/td><\/tr><tr><td>SCL<\/td><td><span class=\"rnthl rntclgray\">GPIO 22<\/span><\/td><\/tr><tr><td>SDA<\/td><td><span class=\"rnthl rntcyellow\">GPIO 21<\/span><\/td><\/tr><\/tbody><\/table><p>Alternatively, you can use the following schematic diagram to connect the ESP32 to an OLED display<\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5592 size-medium\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/ESP32_OLED-300x235.png\" alt=\"\" width=\"300\" height=\"235\" \/><\/p><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">In this case, we are using the I2C communication protocol.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"10\">The ESP32&#8217;s most appropriate pins for I2C communication are GPIO 22 and GPIO 21.<\/span><\/p><p style=\"text-align: justify;\" data-slot-rendered-dynamic=\"true\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">Use the following GPIOs if you are using an OLED display that supports SPI communication protocol.<\/span><\/p><ul><li style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">GPIO 18 CLK<\/span><\/li><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">GPIO 19 &#8211; MISO<\/span><\/li><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">GPIO 23: MOSI<\/span><\/li><li><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">GPIO 5: CS<\/span><\/li><\/ul><h2>Monochrome 0.96\u201d OLED Display Pinout Diagram<\/h2><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">Because of the driver, the pin configuration of an OLED is similar to other types.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">The driver receives the basic input and then performs all the functions.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">There are two types of OLED Display communication pins. One is SPI, the other is I2C.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">Although the OLED is faster for SPI communication, it is very popular for I2C communication.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">Because of the low number of pins, the OLED is very popular.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"1\">All Power and Communication pins can be found here<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5593 size-medium\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/SSD1306-Monochrome-0.96-OLED-Display-Pinout-diagram-Configuration-230x300.jpg\" alt=\"\" width=\"230\" height=\"300\" \/><\/p><h3><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"3\">Power Pins<\/span><\/h3><figure><table><tbody><tr><th><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"8\">PINS<\/span><\/strong><\/th><th><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"14\">DETAILS<\/span><\/strong><\/th><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"13\">Pin1<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">GND<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"26\">To make sure that you are working properly, connect the Pin1 and the ground pin.<\/span><\/td><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">Pin2<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"22\">Power (VCC\/VDD, 5V, 5V)<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"20\">OLED has a single power pin that handles all power inputs.<\/span><\/td><\/tr><\/tbody><\/table><\/figure><h3><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">Communication pins\u00a0<\/span><\/h3><figure><table><tbody><tr><th><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">PINS<\/span><\/strong><\/th><th><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"11\">DETAILS<\/span><\/strong><\/th><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"10\">Pin3<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"18\">SCK (CLK and SCL)<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"30\">The Pin3 will provide a common clock signal to both the microcontroller\/Arduino and OLED.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"24\">It will also act as a clock pin in SPI and I2C communications.<\/span><\/td><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"12\">Pin4<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"19\">SDA (MOSI and DI)<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"23\">This pin will receive data from the Arduino\/controller.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"27\">OLED will only allow data input. There won&#8217;t be any data output.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"28\">The Pin4 will be the data input device for I2C and SPI.<\/span><\/td><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">Pin5<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"16\">RES (Reset and RST)<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"21\">The reset pin will reset the OLED driver&#8217;s internal buffer.<\/span><\/td><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">Pin6<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"15\">D\/C (A0).<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"25\">Pin6 will modify the command and data registers for input requirements.<\/span><\/td><\/tr><tr><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"7\">Pin7<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"17\">Chip Enable (CS CE)<\/span><\/td><td><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"29\">The Pin7 pin is an enable button that will activate the display when the input signal is LOW.<\/span><\/td><\/tr><\/tbody><\/table><\/figure><h2>Interface Esp32 Display with OLED<\/h2><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"12\">Let&#8217;s now look at how to interface ESP32 <\/span>Displays with<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"12\"> OLED.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"11\">The communication interface is SPI. This is the first thing you need to know.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"7\">Look at the Pinout for ESP32 to identify the SPI Pins.<\/span><\/p><p>\u00a0<\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5594 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/ESP32-Pinout-1.jpg\" alt=\"\" width=\"1000\" height=\"518\" \/><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"14\">The above image shows that HSPI (and VSPI) are available on the ESP32 Development Board to SPI Interface.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">Let&#8217;s use the VSPI peripheral.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">These pins are for VSPI in ESP32:<\/span><\/p><table style=\"height: 366px;\" width=\"500\"><tbody><tr><td width=\"144\"><strong>VSPI Pin<\/strong><\/td><td width=\"156\"><strong>GPIO Pin<\/strong><\/td><\/tr><tr><td width=\"144\">VSPI_MOSI<\/td><td width=\"156\">GPIO 23<\/td><\/tr><tr><td width=\"144\">VSPI_MISO<\/td><td width=\"156\">GPIO 19<\/td><\/tr><tr><td width=\"144\">VSPI_CLK<\/td><td width=\"156\">GPIO 18<\/td><\/tr><tr><td width=\"144\">VSPI_CS<\/td><td width=\"156\">GPIO 5<\/td><\/tr><\/tbody><\/table><p><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">NOTE:\u00a0<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">ESP32 is equipped with 4 SPI peripherals.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"13\">(SPI0, SPI1, HSPI, VSPI, and SPI1 respectively).<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">SPI0 is dedicated to SPI Flash IC.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">SPI1 shares hardware with SPI0.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"10\">This leaves HSPI, VSPI to interface SPI Devices.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"8\">Below is a table showing the connections between OLED Display Module and ESP32.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">We need to make seven connections because this is an OLED Display Module with SPI.<\/span><\/p><table><tbody><tr><td width=\"156\"><strong>OLED Display<\/strong><\/td><td width=\"162\"><strong>ESP32<\/strong><\/td><\/tr><tr><td width=\"156\">GND<\/td><td width=\"162\">GND<\/td><\/tr><tr><td width=\"156\">VCC<\/td><td width=\"162\">3.3V<\/td><\/tr><tr><td width=\"156\">D0 (SCK)<\/td><td width=\"162\">GPIO 18<\/td><\/tr><tr><td width=\"156\">D1 (MOSI)<\/td><td width=\"162\">GPIO 23<\/td><\/tr><tr><td width=\"156\">RES<\/td><td width=\"162\">GPIO 17<\/td><\/tr><tr><td width=\"156\">DC<\/td><td width=\"162\">GPIO 16<\/td><\/tr><tr><td width=\"156\">CS<\/td><td width=\"162\">GPIO 5<\/td><\/tr><\/tbody><\/table><p>suggested article;<\/p><h4 class=\"pt-cv-title\"><a class=\"_self\" href=\"https:\/\/myelectricsparks.com\/raspberry-pi-pico-programming-with-micropython-a-beginners-guide\/\" target=\"_self\" rel=\"noopener\">Raspberry Pi Pico Programming with MicroPython | A Beginner\u2019s Guide<\/a><\/h4><h2>Installing SSD1306 OLED Library \u2013 ESP32<\/h2><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"22\">There are many libraries that can control the OLED display using the ESP32.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"23\">This tutorial will use Adafruit_SSD1306 and Adafruit_GFX libraries.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"15\">These steps will help you install the libraries.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">1.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"14\">Go to the Arduino IDE.<\/span><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"8\">Sketch<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">&gt;<\/span><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"11\">Include Library<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">&gt;<\/span><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">Manage Libraries<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"13\">The Library Manager should open.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"16\">The Library Manager should be able to open.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">2.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"7\">Type &#8220;<\/span><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"10\">SSD1306<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"21\">Use the search box to locate the SSD1306 library by Adafruit.<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5595 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/install-ssd1306-adafruit-library.png\" alt=\"\" width=\"788\" height=\"443\" \/><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">3.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"19\">Type &#8220;After installing the SSD1306 library by Adafruit<\/span><strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"12\">GFX<\/span><\/strong><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"17\">Use &#8220;in the search box to install the library.<\/span><\/p><p>\u00a0<\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5596 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/install-gfx-library-adafruit.png\" alt=\"\" width=\"786\" height=\"443\" \/><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">4.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"18\">Restart your Arduino IDE after installing the libraries.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"24\">The Arduino IDE is required to program the ESP32. To do this, you will need the ESP32 add-on.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"20\">Follow the next tutorial if you don&#8217;t have it.<\/span><\/p><h3>Components Required for Interface Esp32 display with oled<\/h3><ul><li>ESP32 DevKit Development Board<\/li><li>OLED Display Module<\/li><li>Breadboard<\/li><li>Connecting Wires<\/li><li>Micro USB Cable<\/li><\/ul><h3>Circuit Diagram for Interface Esp32 display with oled<\/h3><p>This is the circuit diagram of the Interfacing ESP32 Display with OLED\u00a0 .<\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-5597\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/ESP32-OLED-Display-Circuit-Diagram-730x1024-1-214x300.jpg\" alt=\"\" width=\"214\" height=\"300\" \/><\/p><p>suggested article; <a class=\"_self\" href=\"https:\/\/myelectricsparks.com\/how-to-write-data-to-rfid-card-using-rc522-rfid-and-arduino\/\" target=\"_self\" rel=\"noopener\">How to Write Data to RFID Card using RC522 RFID and Arduino<\/a><\/p><h2>Preparing Arduino IDE for <span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">ESP32 OLED Display<\/span><\/h2><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">You will need to download libraries for Arduino IDE that are related to SSD1306 OLED Display before you can start writing code.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"9\">This tutorial will show you how to install ESP32 Boards in Arduino IDE.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">This tutorial is available first.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"8\">Ope<\/span>n the Arduino IDE, and then go to Tools -&gt; Manage Libraries.<\/p><p><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"8\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5598 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/Arduino-IDE-OLED-Library-1.jpg\" alt=\"\" width=\"486\" height=\"593\" \/><\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"2\">A Library Manager window will open.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"6\">Type &#8220;ssd1306&#8221;, then click on the Search button.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"12\">This library was created specifically for monochrome OLED displays based on SSD1306 driver IC.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"10\">Supported resolutions are 128&#215;32 and 128&#215;64<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5599 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/Arduino-IDE-OLED-Library-2.jpg\" alt=\"\" width=\"786\" height=\"443\" \/><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"15\">After you have installed the SSD1306 Library, search &#8220;gfx&#8221; to install the Adafruit GFX Library.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"7\">This library contains basic graphics such as lines, rectangles, and circles<\/span><\/p><p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5600 size-full\" src=\"https:\/\/myelectricsparks.com\/wp-content\/uploads\/2021\/07\/Arduino-IDE-OLED-Library-3.jpg\" alt=\"\" width=\"786\" height=\"443\" \/><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"5\">After downloading all necessary libraries, close the library manager window.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"4\">After downloading all the libraries, close the library manager window.<\/span><\/p><h2><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">Test ESP32 OLED Display<\/span><\/h2><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"17\">Once we have made all necessary connections, it is time to create a test code for ESP32 that will display text and graphics on the OLED Monitor.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"16\">This code tests various OLED Display features, including scrolling text and inverted text. It also displays ASCII Characters. It also adjusts font size.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"11\">I also added code to display graphics such as rectangle, filled rectangle, and rounded rectangle.<\/span><\/p><p><span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"14\">Finally, I converted the logo into a bitmap and placed it on the OLED Display.<\/span><\/p><h4>CODE for <span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"3\">ESP32 OLED Display<\/span><\/h4><div class=\"gist-data\"><div class=\"js-gist-file-update-container js-task-list-container file-box\"><div id=\"file-esp32-oled-display-ino\" class=\"file my-2\"><div class=\"Box-body p-0 blob-wrapper data type-c \"><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">\u00a0<\/span><\/div><\/div><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4cbc26f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4cbc26f\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fa0faff\" data-id=\"fa0faff\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d314d20 elementor-widget elementor-widget-text-editor\" data-id=\"d314d20\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>#include &lt;SPI.h&gt;<br \/>#include &lt;Wire.h&gt;<br \/>#include &lt;Adafruit_GFX.h&gt;<br \/>#include &lt;Adafruit_SSD1306.h&gt;<\/p><p>#define SCREEN_WIDTH 128<br \/>#define SCREEN_HEIGHT 64<\/p><p>#define OLED_MOSI 23<br \/>#define OLED_CLK 18<br \/>#define OLED_DC 16<br \/>#define OLED_CS 5<br \/>#define OLED_RESET 17<\/p><p>Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT,<br \/>OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);<\/p><p>const unsigned char electronicshub_logo [] PROGMEM = {<br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x03, 0xe0, 0x07, 0xc3, 0x87, 0xcf, 0x03, 0x02, 0x11, 0x07, 0x04, 0x0f, 0xbd, 0xbd, 0xc7, 0x80, <br \/>0x03, 0xe4, 0x07, 0xc3, 0xc7, 0xcf, 0x07, 0x82, 0x11, 0x07, 0x8e, 0x0f, 0xbd, 0xbd, 0xc7, 0x80, <br \/>0x02, 0x04, 0x04, 0x06, 0xc1, 0x01, 0x84, 0xc2, 0x11, 0x0d, 0x8a, 0x0f, 0xbd, 0xbd, 0xf3, 0x80, <br \/>0x02, 0x04, 0x04, 0x04, 0x61, 0x00, 0x88, 0x42, 0x11, 0x08, 0x8a, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x0c, 0x21, 0x00, 0x88, 0x43, 0x11, 0x10, 0x08, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x00, 0x88, 0x23, 0x11, 0x10, 0x08, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x00, 0x88, 0x23, 0x11, 0x10, 0x08, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x00, 0x90, 0x23, 0x11, 0x10, 0x08, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x00, 0x90, 0x22, 0x91, 0x10, 0x08, 0x0f, 0xbd, 0xbd, 0xf7, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x00, 0x90, 0x22, 0x91, 0x10, 0x0e, 0x0f, 0xbd, 0xbd, 0xc7, 0x80, <br \/>0x03, 0x84, 0x07, 0x08, 0x01, 0x00, 0x90, 0x22, 0x91, 0x10, 0x06, 0x0f, 0x81, 0xbd, 0xc7, 0x80, <br \/>0x03, 0x84, 0x07, 0x08, 0x01, 0x07, 0x90, 0x22, 0xd1, 0x10, 0x03, 0x0f, 0x81, 0xbd, 0xf7, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x07, 0x10, 0x22, 0x51, 0x10, 0x01, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x06, 0x10, 0x22, 0x51, 0x10, 0x01, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x02, 0x10, 0x22, 0x51, 0x10, 0x01, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x02, 0x08, 0x22, 0x31, 0x10, 0x01, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x08, 0x01, 0x01, 0x08, 0x22, 0x31, 0x10, 0x01, 0x0f, 0xbd, 0xbd, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x0c, 0x21, 0x01, 0x08, 0x42, 0x31, 0x10, 0x01, 0x0f, 0xbd, 0xdb, 0xfb, 0x80, <br \/>0x02, 0x04, 0x04, 0x04, 0x61, 0x01, 0x88, 0x42, 0x31, 0x08, 0x99, 0x0f, 0xbd, 0xdb, 0xf3, 0x80, <br \/>0x02, 0x04, 0x04, 0x06, 0xc1, 0x00, 0x84, 0xc2, 0x11, 0x0d, 0x8b, 0x0f, 0xbd, 0xc3, 0xc7, 0x80, <br \/>0x03, 0xe7, 0xc7, 0xc3, 0xc1, 0x00, 0x87, 0x82, 0x11, 0x07, 0x8e, 0x0f, 0xbd, 0xe7, 0xc7, 0x80, <br \/>0x03, 0xe7, 0xc7, 0xc3, 0x81, 0x00, 0x83, 0x02, 0x11, 0x07, 0x06, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0x80, <br \/>0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, <br \/>0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, <br \/>0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x07, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, <br \/>0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00<br \/>};<\/p><p>void setup()<br \/>{<br \/>Serial.begin(115200);<br \/>if(!display.begin(SSD1306_SWITCHCAPVCC))<br \/>{<br \/>Serial.println(F(&#8220;SSD1306 allocation failed&#8221;));<br \/>for(;;);<br \/>}<br \/><br \/>display.clearDisplay();<br \/>display.display();<br \/>delay(1000);<\/p><p>display.clearDisplay();<br \/>display.drawBitmap(0, 0, electronicshub_logo, SCREEN_WIDTH, SCREEN_HEIGHT, SSD1306_WHITE);<br \/>display.display();<br \/>delay(1000);<br \/><br \/><br \/>}<br \/>void loop()<br \/>{<br \/>AllPixels();<br \/>TextDisplay();<br \/>InvertedTextDisplay();<br \/>ScrollText();<br \/>DisplayChars();<br \/>TextSize();<br \/>DrawRectangle();<br \/>DrawFilledRectangle();<br \/>DrawRoundRectangle();<br \/>DrawFilledRoundRectangle();<br \/>DrawCircle();<br \/>DrawFilledCircle();<br \/>DrawTriangle();<br \/>DrawFilledTriangle();<br \/>}<\/p><p>void AllPixels()<br \/>{<br \/>int i;<br \/>int j;<br \/>display.clearDisplay();<br \/>for(i=0;i&lt;64;i++)<br \/>{<br \/>for(j=0;j&lt;128;j++)<br \/>{<br \/>display.drawPixel(j, i, SSD1306_WHITE);<br \/><br \/>}<br \/>display.display();<br \/>delay(30);<br \/>}<br \/><br \/>for(i=0;i&lt;64;i++)<br \/>{<br \/>for(j=0;j&lt;128;j++)<br \/>{<br \/>display.drawPixel(j, i, SSD1306_BLACK);<br \/><br \/>}<br \/>display.display();<br \/>delay(30);<br \/>}<br \/><br \/>}<\/p><p>void TextDisplay()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(5,28);<br \/>display.println(&#8220;Electronics Hub&#8221;);<br \/>display.display();<br \/>delay(3000);<br \/>}<\/p><p>void InvertedTextDisplay()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextColor(SSD1306_BLACK, SSD1306_WHITE);<br \/>display.setCursor(5,28);<br \/>display.println(&#8220;Electronics Hub&#8221;);<br \/>display.display();<br \/>delay(3000);<br \/>}<\/p><p>void ScrollText()<br \/>{<br \/>display.clearDisplay();<br \/>display.setCursor(0,0);<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.println(&#8220;This is a&#8221;);<br \/>display.println(&#8220;Scrolling&#8221;);<br \/>display.println(&#8220;Text!&#8221;);<br \/>display.display();<br \/>delay(100);<br \/>display.startscrollright(0x00, 0x0F);<br \/>delay(2000);<br \/>\/\/display.stopscroll();<br \/>\/\/delay(1000);<br \/>display.startscrollleft(0x00, 0x0F);<br \/>delay(2000);<br \/>\/\/display.stopscroll();<br \/>\/\/delay(1000);<br \/>display.startscrolldiagright(0x00, 0x0F);<br \/>delay(2000);<br \/>display.startscrolldiagleft(0x00, 0x0F);<br \/>delay(2000);<br \/>display.stopscroll();<br \/>}<\/p><p>void DisplayChars()<br \/>{<br \/>display.clearDisplay();<\/p><p>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0, 0);<br \/>display.cp437(true);<br \/><br \/>for(int16_t i=0; i&lt;256; i++)<br \/>{<br \/>if(i == &#8216;\\n&#8217;)<br \/>{<br \/>display.write(&#8216; &#8216;);<br \/>}<br \/>else<br \/>{<br \/>display.write(i);<br \/>}<br \/>}<\/p><p>display.display();<br \/>delay(4000);<br \/>}<br \/>void TextSize()<br \/>{<br \/>display.clearDisplay();<\/p><p>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(F(&#8220;Size: 1&#8221;));<br \/>display.println(F(&#8220;ABC&#8221;));<\/p><p>display.setTextSize(2);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.println(&#8220;Size: 2&#8221;);<br \/>display.println(F(&#8220;ABC&#8221;));<\/p><p>display.display();<br \/>delay(3000);<br \/>}<\/p><p>void DrawRectangle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Rectangle&#8221;);<br \/>display.drawRect(0, 15, 90, 45, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/>}<\/p><p>void DrawFilledRectangle()<br \/>{<br \/>display.clearDisplay(); <br \/>display.setTextSize(1);<br \/>display.setTextColor(WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Filled Rectangle&#8221;);<br \/>display.fillRect(0, 15, 90, 45, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/><br \/>}<\/p><p>void DrawRoundRectangle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Round Rectangle&#8221;);<br \/>display.drawRoundRect(0, 15, 90, 45, 10, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/>}<\/p><p>void DrawFilledRoundRectangle()<br \/>{<br \/>display.clearDisplay(); <br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Filled Round Rect&#8221;);<br \/>display.fillRoundRect(0, 15, 90, 45, 10, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/><br \/>}<\/p><p>void DrawCircle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Circle&#8221;);<br \/>display.drawCircle(30, 36, 25, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/>}<br \/>void DrawFilledCircle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Filled Circle&#8221;);<br \/>display.fillCircle(30, 36, 25, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/><br \/>}<\/p><p>void DrawTriangle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Triangle&#8221;);<br \/>display.drawTriangle(30, 15, 0, 60, 60, 60, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000); <br \/>}<\/p><p>void DrawFilledTriangle()<br \/>{<br \/>display.clearDisplay();<br \/>display.setTextSize(1);<br \/>display.setTextColor(SSD1306_WHITE);<br \/>display.setCursor(0,0);<br \/>display.println(&#8220;Filled Triangle&#8221;);<br \/>display.fillTriangle(30, 15, 0, 60, 60, 60, SSD1306_WHITE);<br \/>display.display();<br \/>delay(2000);<br \/>}<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e7c02f0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e7c02f0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-07673f5\" data-id=\"07673f5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b2b926a elementor-widget elementor-widget-text-editor\" data-id=\"b2b926a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div><h2 style=\"text-align: justify;\">Conclusion<\/h2><p style=\"text-align: justify;\"><span class=\"wordai-block rewrite-block enable-highlight\" data-id=\"1\">This tutorial will show you how to interface the SPI OLED Module with the ESP32 DevKit board.<\/span>\u00a0<span class=\"wordai-block rewrite-block enable-highlight active\" data-id=\"2\">This tutorial will show you how to connect the SSD1306 OLED Display with ESP32. You can also download libraries for Arduino IDE. Finally, you will learn the pinout for the SSD1306 OLED Display.<\/span><\/p><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>This tutorial will show you how to Interface the Esp32 display with the OLED Development Board. This project uses an OLED Graphic Display based on SSD1306 OLED driver IC. It communicates via SPI. Use ESP32 with OLED for text, bitmap images, graphics, etc., in your DIY project. Introduction OLED, or Organic&nbsp;Light Emitting Diode, is an [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":74336,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1897],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Interface oled display with Esp32 ? - DIY Electronic Projects Tech Explorers<\/title>\n<meta name=\"description\" content=\"This article shows how to Interface Oled display with esp32.project uses an OLED Graphic Display that is based on SSD1306 OLED driver IC.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/myelectricsparks.com\/interface-oled-display-with-esp32\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Interface oled display with Esp32 ? 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