ESP Powered Bed Occupancy Sensor
Uses HX711 chip and 4 load cells
Note: Load cells require a bracket that supports the edge, while allowing the middle portion to deflect. Included is "half_bridge_load_sensor_holder-original.stl" which can be 3D printed. I used ABS plastic for mine and it works well.
Load cell bracket design courtesy of linorics on Thingverse.
Set up WiFi and MQTT settings in Firmware/include/config.h. Example file is included
Programmed using VSCode + PlatformIO. Schematic designed in EagleCAD