How to find out if HX711(amplifier and 24-bit ADC) is damaged or not? I'm using this ADC with a load cell for weight measurement, I had 4 strain gauges and mounted them on a cantilever structure that I made out of acrylic sheet, used calibration program from here: https://github.com/olkal/HX711_ADC/blob/master/examples/Calibration/Calibration.ino,
followed the steps but it gave calibration factor as 0.00 and the output was NaN or inf . I used another program from here: https://github.com/queuetue/Q2-HX711-Arduino-Library/tree/master/examples/simple_scale and the output was just hovering around 83868. So I thought that the mounting was the problem and used a load cell (green label, CZL 601) with the above and found the same results by doing the above.
Then I thought maybe the ADC is at fault , measured the power output from Arduino to the board and it was around 5 V , but when I measured between the E+ and E- , I got 0 V. Since it is the excitation voltage to the bridge, it should be around 5V too right?
Is this the right way of checking the board?
P.S. I measured the four wires of the load cell and connected the opp. ends of the bridge to the E+ , E- , A+ , A- (order doesn't matter here right? connected the pairs that showed the rated resistance to E's and A's separately)
Here's a [pic][1] of the connections
Between White and green wire the Resistance is 350 ohm
Between Bk( connected in the board ) and the red it is 408 ohm
Between White and red it was 263 ohm
Between white and bk it is 320 ohm
Between bk(not connected in the board) and all others it is around 1 MOhm (so ignored that)
[1]: https://photos.app.goo.gl/4HEmZaN1EwZ7Mjur7
Looking closely at the photo of your setup I can see that you haven't soldered the header to the breakout board. Whilst there are headers available that don't require soldering, and ways of making header connections that don't require soldering, this isn't either of those.
Without solder the connection to the board will be intermittent at best and non-existent in general.