FilamentGauger

PlatformIO firmware for the Guition JC8048W550(C) display with an HX711 load-cell amplifier.

Pins:

• HX711 SCK -> IO17
• HX711 DOUT -> IO18

Important:

• On this display family IO18 is normally used by the capacitive touch interrupt.
• In this firmware the touch controller stays enabled, but its interrupt pin is moved to GPIO_NUM_NC, so touch works in polling mode and IO18 becomes available for HX711.

Default calibration flow:

1. Leave the platform empty.
2. Tap Tare.
3. Put a 100 g reference weight on the platform.
4. Tap Cal 100 g.

Serial commands:

• tare
• cal 100
• scale 432.1
• reset
• status

Build:

platformio run