All I need to measure is inclination angle w/r to gravity. I.e. if the sensor is on a 20 deg ramp, I want to see a readout of “20 deg”. What’s the simplest / easiest sensor that will do this?

Any 3D accelerometer will work. Tutorial: https://wiki.dfrobot.com/How_to_Use_a_T … lt_Sensing

OK, thanks.

I got my hands on one of these dual inclinometers:

It’s difficult to find more info or a better photo on this one but it has a Molex connector for 7-15 VDC and a DB9 for serial output on the other end of the cable. I just plugged it in here at my desk and get a nice, readable output like pasted below, about 3-4 values/second. I wouldn’t count on finding another one like this but there must be similar sensors elsewhere.

Don’t forget, these are detecting force which is caused by acceleration including but *not exclusive to* gravity!

```
X-08.1 Y-08.2
X-08.1 Y-08.3
X-08.1 Y-08.3
X-08.1 Y-08.3
X-08.1 Y-08.3
X-08.1 Y-08.3
X-08.0 Y-08.2
X-06.6 Y-05.6
X-06.9 Y-06.1
X-06.9 Y-06.2
X-07.1 Y-06.2
X-16.2 Y-04.3
X-28.8 Y+00.5
X-31.1 Y+01.0
X-23.2 Y-04.1
X-10.4 Y-13.8
X-04.1 Y-15.5
X+05.2 Y-14.5
X-04.4 Y-08.2
X-05.7 Y-07.8
X-05.8 Y-07.8
X-05.7 Y-07.7
X-05.8 Y-07.7
X-05.7 Y-07.7
X-05.8 Y-07.8
X-05.8 Y-07.7
```

](Online-Shop Angst+Pfister Sensors and Power - PEI-Z260-AL-232-2-17 120° 2 dual inclin)