A dynamic force measurement solution, build to evaluate climbing performance and inform training.
Force is transduced to voltage by a wheatstone bridge load cell, values are digitalized with a HX711 analog-digital-converter. A ESP32 Microcontroller reads the HX711 values, converts to weights and recieves commands/transmits data via Bluetooth Low Energy (BLE)
A PC client controls measuring and stores, organizes and visualizes the resulting data.
- Elseif ESP32 Microcontroller Dev board
- status LEDs
- HX711 amplifier/adc
- S-load cell (YZC-516C 500kg, but any other with the right range should work)
TODO: Circuit diagramm, pretty self-expanitory though
Written in C++ for PlatformIO. Use PlatformIO (documentation) to install dependencies and set up the serial bus connection to an ESP32 board.
Written in python. Use
$ pip install -r requirements.txt to install Python dependencies
Also requires a bash shell and gnuplot (documentation) for data visualization. (Hopefully to be replaced by GUI)
- Calibration, functions to set do exist but is currently hard-coded
- GUI (current plan: a simple web-stack based gui using eel)