IOT Example: Remotely switch on/off and control brightness of an LED using MicroPython WebREPL So far, we have flashed MicroPython firmware onto an ESP8266 and setup WebREPL to run programs over WIFI on the chip. Now it's time for a hands-on excercise. We'll remotely switch on/off and control brightness of an LED using MicroPython WebREPL. Abhijit Ghosh 8 Mar 2017 · 5 min read