A nice upgrade would be to add support for other ESP8266 modules too. Maybe a separate, 3d printed, pogo pinned, test fixture for the other modules.

[Necromant] is ready to dip his toes into the world of firmware development for everyone’s favorite WiFi chip, the ESP8266. Before that begins, it would be a good idea to make a nifty little … ...

This project demonstrates how to control a servo motor using a potentiometer connected to an ESP8266 development board (such as NodeMCU or Wemos D1 Mini). As the potentiometer is turned, the servo ...