My Initial tests (using the regulated 5VDC power supply) found it works well enough for my needs. In my quick estimation, the Grove-mini PIR motion sensor module (v1.0) is a compact and cost effective ...

I should have clarified better, i meant a diy sensor to measure air pressure, like the HX710B does. i was thinking of something like the coiled party whistles that unfurl when blown, but they don ...

Self-diagnosis that ensures that the sensor output signal is virtually 100% correct can only be realized within the signal conditioning step itself. For this reason such functions have to be ...