it you remove plastic it is not water proof anymore, and greyscale was not precise enough....
CNY70 has reflexion protection which is much better

not with mysensors, but could have been: CNY70 water sensor meter (rotating wheel) with extended wifi range, the heart of it is a Particle Photon pushing to domoticz

here is a link with the schematics (so simple !):https://easydomoticz.com/forum/viewtopic.php?f=17&t=1737&start=70

Hello,

I've dropped this approch to use the CNY70 ir on this water meter.

I did that for a friend that has not the mysensors gateway (range issue) so I made it with a Particle Photon using a wifi extender, but it is quite straightforward reading the pulse up and down.

MQ are always a bad choice, saturate air around with any gas and they will react ...

Mics are used by sensely, but even them aren ot calibrated... and they are a hell to get working even when you have the pins soldered to them.

@lukács-attila check wiring first, seems there are several sub version around thay may need other values from datasheet

@ambuj please see the begining of the discussion regarding MQ like reliability

@gohan I would have too much work going to 2.0 on every node I have, but I have to do this as a background task since I'll have to upgrade all my sketches first...

swapping hardware is an option, recabling everything is not my cup of tea

Hello,

I am trying to get my sensors back, and I have one that goes off the road several time...

board is a uno, with long antennae, mysensors lib is 1.5.

send: 3-3-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,st=fail:1.5.1
send: 3-3-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,st=fail:1.5.1

sometime resetting the uno button is enough, other not, and unpowering several times is the only way to make it work. BTW is is less than 1m from the controller.

sometimes, it goes well for 2h, then I have a 'fin parent' message on console and hten everything fail after.

any idea ?

@jumping see just above on power regressin curves, this is the result from a power regression based on the data sheet provided by one maker. Sometime I leave the data points in the sketch, sometime not (based on history