Hi
I'm developing an application using SoC nRF52840 and I need to use load cells to measure some weights. A lot of existing solutions use the HX711 chip to amplify the differential signal, however the nRF52840 SoC has a SAADC peripheral with 8 independent channels or 4 channels in differential mode. So in theory I can connect the load cells directly to the nRF52840 SoC instead of using the HX711.
Scenario 1 (with HX711 chip):
- Gain amplifier up to 128
- ADC resolution: 24 bit
Scenario 2 (without HX711 chip):
- Gain amplifier up to 4
- ADC resolution: 14-bit (with oversampling)
Do you think using the HX711 will improve the accuracy of my measurements significantly?
