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use of 4 YFS401 flow sensors
Posted: 18 Jun 2022, 00:10
by marktn
Is it possible to connect 4, YFS401 flow sensors to 1 esp?
Thanks, Mark
Re: use of 4 YFS401 flow sensors
Posted: 18 Jun 2022, 09:05
by Ath
When using a recent ESPEasy version that should be possible.
You might want to use a level converter, as the VCC range for that sensor is from 5V..24V, and the ESP inputs are specified at 3.3V, but there are reports that especially the Wemos D1 mini (clones) and NodeMCU (clones) boards will handle the ~5V signal without damage. (I prefer the safe option
)
Re: use of 4 YFS401 flow sensors
Posted: 18 Jun 2022, 11:45
by marktn
Ath wrote: ↑18 Jun 2022, 09:05
When using a recent ESPEasy version that should be possible.
You might want to use a level converter, as the VCC range for that sensor is from 5V..24V, and the ESP inputs are specified at 3.3V, but there are reports that especially the Wemos D1 mini (clones) and NodeMCU (clones) boards will handle the ~5V signal without damage. (I prefer the safe option
)
Thanks! I will do that.