Oh and if you change the emonhub config, you must restart the service.
sudo systemctl restart emonhub
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I was powering it over 3v for quite awhile noticed some used 5v gave it a try see if it fixed my issues
Still the same using 3v
No signs of life
If lined up correctly with the meter LED and wired to 3.3 (or 5) volt - just the power and ground, I think you should see the pulse on the outside of the OPS flash when the meter flashes.
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Yep this isnât happening itâs gotta be dead sadly
Email the shop.
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We are sending @Sharpy another sensor.
The failure rate on these sensors is very low, but just in case, we have thoroughly tested this replacement.
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@Gwil, am I right that it should just flash when powered (and data line not connected)?
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Appreciate that thank you
Here is most of what we know of the optical sensor.
Measurements & cct dgm: First try with EmonPi - Pulsecount stuck at 1 - #16 by Robert.Wall
Also Adjusting sensitivity of Optical Pulse Sensor - #21 by Kempson
Wire colours: 3.3V power: red, GND: black, output: blue
It certainly runs quite happily on 3.3 V.
From reading the above, youâll see it doesnât need a pulse, a steady light (daylight, a torch) is enough, and the output voltage can be read with a multimeter.
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Iâve just tested it and yes: the LED should flash with only the power and ground connected.
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