I have four strain gauges (50 kg) with 5 wires each (red, black, white, green, and yellow) and I want to measure the weight of a platform. I assume those should be hooked to an HX711 load cell amplifier and ESP32 MCU if possible.
I see two problems there:
- The strain gauge has a recommended excitation voltage 10-15 V which is not compatible with the HX711 or ESP32
- I assume I need to hook them up to a Wheatstone bridge, but a single strain gauge is already a Wheatstone bridge. I can't figure out what should be the wiring scheme.