Smart Hand Controller2 Plus

This hand controller with OLED display plugs into OnStep's ST4 port or operates wirelessly and is able to fully operate an OnStep/OnStepX telescope controller.  The ESP32 microcontroller is built into this design which also includes provision for running on battery power if operating wirelessly.  Designed for this 1.54" screen.

Revision history:

v1.0 First release
v1.1 Switched from Micro-USB to USB-C connector and added ESD protection diodes.