Basic demo of TTGO "T-Display" ESP32 module with 1.14" color screen features.
Demonstrates screen use, WiFi scan, battery level read, button access, nonvolatile memory, and power control. Recreates and improves on the module's "Factory Test" app but with clean simple fully commented code and minimum dependencies. Press top RESET button to power on/off. Shows battery voltage and Mac address, then a scan of nearest WiFi networks. Press either button to refresh.