Daniel EichhornDo you know these wonderfully cheap SSD1306 based OLED displays with the crispy display? For a while now the NodeMCU Lua firmware for the ESP8266 supports them and has a rich feature set to draw lines, circles and even bitmaps. One way to draw bitmaps …
ESP8266, NodeMCU: how to create xbm images for displaying on OLED 128×64 I2C Displays
