What can’t the little $5 WiFi module do? Now that [lhartmann] has got an ESP8266 controlling the motors of a 3D printer, that’s one more item to check off the list. What’s coolest about this ...
The first limitation you run into with an ESP8266 is that it doesn’t have enough GPIOs, or ADCs, for your particular project. While the ESP32 is a serious improvement in sheer GPIO quantity ...