- Thu Jun 23, 2022 4:57 pm
#234247
Hi,
I am using a fixed resistance (350 Ohm each) Wheatstone bridge, the load cell and Arduino Mega 2560. The Arduino gives a random ADC value of -963250. I use the set calibration function on that value and tare after that. Now when I am unbalancing one of the legs of the Wheatstone bridge by 5 Ohm (350 -> 345) I am getting a very high ADC Value.
HX711 reading: 6977316
HX711 reading: 6977258
HX711 reading: 6977327
HX711 reading: 6977260
HX711 reading: 6977281
HX711 reading: 6977297
HX711 reading: 6977305
HX711 reading: 6977340
HX711 reading: 6977299
HX711 reading: 6977383
HX711 reading: 6977331
HX711 reading: 6977317
HX711 reading: 6977332
HX711 reading: 6977387
And by unbalancing the Wheatstone bridge by only 10 Ohm (i.e. from 350 -> 360) it shows the maximum ADC value of 8388608.
I don't know why? Can anyone please help?
I am using a fixed resistance (350 Ohm each) Wheatstone bridge, the load cell and Arduino Mega 2560. The Arduino gives a random ADC value of -963250. I use the set calibration function on that value and tare after that. Now when I am unbalancing one of the legs of the Wheatstone bridge by 5 Ohm (350 -> 345) I am getting a very high ADC Value.
HX711 reading: 6977316
HX711 reading: 6977258
HX711 reading: 6977327
HX711 reading: 6977260
HX711 reading: 6977281
HX711 reading: 6977297
HX711 reading: 6977305
HX711 reading: 6977340
HX711 reading: 6977299
HX711 reading: 6977383
HX711 reading: 6977331
HX711 reading: 6977317
HX711 reading: 6977332
HX711 reading: 6977387
And by unbalancing the Wheatstone bridge by only 10 Ohm (i.e. from 350 -> 360) it shows the maximum ADC value of 8388608.
I don't know why? Can anyone please help?