Display toggle switch

D4 and GND on the ESP board (SW and GND on the HBG3 board, if a pin is linked between D4 and SW) toggles display when using a momentary switch.

• WiFi information (Default, no press required to get this at boot)
• GPS information
• OTA Update - press to update (resets OLED to WiFi info after checking)
• QR code page
• Blanking page

CloudyNights post

OLED display additional

Dew heater control screen if the hardware is detected.

• Smart Dew Heater Control functionality
• Optional SHT3x ambient sensor for temperature and humidity
• Thermistor inputs (like from the Celestron Dew Ring accessories)

The Dew Heater functionality provides a faithful emulation of the Celestron 2X DewHeater Controller, enabling monitoring and control from Celestron Hand-Controllers and also from CPWI software on a computer.