ESP32-C3 0.42 OLED Picked up a stack of ESP32-C3 + 0.42" SSD1306 modules and followed an existing guide, but I wasn’t keen on the 128x64-with-offset bodge. I dug into U8g2 and created a proper 72x40 SSD1306 constructor so drawing uses native coordinates. Cleaner code, same tiny display, job done. 16 February 2026