![]() ![]() OLED stands for Organic LED, and it is some sort of biomechanical sorcery or magick that brings up imaged on the 0.96″ screen. The code you see in this blog post is available on GitHub. This generates the file Heltec.h into the Libraries folder, and that brings you all the functionality you need. ![]() The installation of the Heltec brand chips is straightforward, because after installing the general support for ESP32, you can add Heltec as a library to the Arduino IDE. I have a previous piece on how to use the LCD displays, in case you are interested (it features the Arduino but it works just as well on ESP32). I bought a handful of the Heltec OLED WiFi kit chips so as to have a little display without the hassle of attaching a two-line LCD on the device, to see what’s happening in the system. Their ESP32-based SoCs appear to be solid quality, and they offer a few variants, including a LoRa WLAN chip for long range connectivity on a narrow band. Heltec is a Chinese company that makes all kinds of SoC (system on a chip) devices. ![]()
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