Gold price alarm using ESP32-C3 0.42 OLED display – MicroPython
In this tutorial, you will build a gold price alarm using ESP32 and MicroPython. An ESP32-C3 board with a built-in 0.42-inch OLED display reads the live gold price from a web API and sounds a buzzer when the price goes above or below your target. Wiring, code, and files are included.