![]() ![]() It can also be obtained as part of this starter kit. For some versions of the Arduino IDE, it will give a waning during compilation regarding that the library only claims support for the ESP8266 architecture, but again you can safely ignore it.įor this tutorial an Elecrow’s version of the OLED was used. ![]() Note that although the library only references support for the ESP8266, it will work on the ESP32. You just need to search for “ SSD1306 QRCode” in the search bar of the libraries manager and install the library that appears below.įigure 1 – Installing the QR Code library. Nonetheless, the easiest way to install it is via Arduino IDE libraries manager, as can be seen below in figure 1. It also includes the electric connection diagram between the ESP32 and the SSD1306.Īdditionally, we will need a library that will take care of generating the QR Code for us, which you can check at GitHub here. You can check this previous post for an explanation on how to install the libraries needed to interact with the OLED from the ESP32 and how to get started. The objective of this post is to explain how to draw a QR Code on a SSD1306 OLED display, using the Arduino core on the ESP32. For this tutorial an Elecrow’s version of the OLED was used. ![]()
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