pulscount issue on R78

[bennybubble]

Hi,

I'm using a ESP12 with R78 to monitor my power and gas meter.
Power is connected to GPIO-13 and the gas to GPIO-16.
Power is working well and today I added the gas counter hardware, strangely enough the gas counter doesn't work.
The signal arrives at the ESP12 (0 or 5 volt) but it is not counted.
Interesting detail is that when I make it a switch input, the signal is detected by the ESP12 but not when using it as a counter.
https://www.dropbox.com/s/8o0meflrxk4pr ... 2.png?dl=0
Any thoughts ?

-ben

[kr0815]

Are you sure about the 5V ? This will kill the ESP, max 3.3V

[bennybubble]

Yes correct, but why does it work with switch input ?
But I will make it 3.3V to see if this solves the problem.

-ben

[bennybubble]

Changed it to 3.3 volt, no difference.
Works well with switch input but NOT with counter!

Could it be related to GPIO-16 port ?

-ben

[bennybubble]

Moved signal to GPIO-4, problem solved.

Cannot explain, anyone else ?

-ben

[dduley]

There are bugs in the counter plugin. I couldn't get formulas to work

[Mickbaer]

The GPIO16, can not be used for Interrupt driven puls counts.
It is an issues of the ESP8266, see esp data sheet.