Electrical noise or missing pull-up resistor. Solution:
If running on batteries, put the microcontroller into sleep mode and use interrupt-driven detection from the HW-417-V1.2. hw-417-v1.2 driver
: Many HW-417 modules use non-genuine FT232RL chips. Modern FTDI drivers may "brick" these chips or refuse to work with them (showing a "Code 10" error). Electrical noise or missing pull-up resistor
Try a different USB cable or port. Some cheap USB-C to USB-A adapters don't play well with serial converters. int ledPin = 13
// hw-417-v1.2 driver equivalent firmware int tiltPin = 7; int ledPin = 13;