ESP MEGA - Pulse Counter

[noxx]

hello

i ve the problem, that the pulse counter dont work in the new versions (ESPeasy 2.0)
try Dev 08, 09, 10

with older versions the pulse counter works fine.

is this a bug?

[79kiko]

I have problem with setup of pulse counter. I want power meter,but I don't know how setup esp easy. My power meter has 1600 pulses/ kWh and 80ms of blink time. What is counter type in setting? What is count and time. Pulse counter return some big number.
I have TCRT5000 sensor. Count should be the number of pulses,but I get big number. Time should be time between two pulses but I get big number again.
Have you anybody example of setup? Thanks

[toffel969]

I have problem with setup of pulse counter. I want power meter,but I don't know how setup esp easy. My power meter has 1600 pulses/ kWh and 80ms of blink time. What is counter type in setting? What is count and time. Pulse counter return some big number.
I have TCRT5000 sensor. Count should be the number of pulses,but I get big number. Time should be time between two pulses but I get big number again.
Have you anybody example of setup? Thanks

Does your power meter also have an S0 port? It would be the better option.

[79kiko]

I think no.

[toffel969]

I think no.

Looks like it does (SO 250imp/kwh). There should be connectors for SO, I think the pulse witdh of 80ms actually refers t this rather than the LED. You then connect the SO between a GPIO and GND. No additional sensor like tcr required.

[79kiko]

The connector is under the cover. I would have to ask for permission from Electricity seller. Slovak byrocration is too high.

[toffel969]

The connector is under the cover. I would have to ask for permission from Electricity seller. Slovak byrocration is too high.

If SO is not an option... try to cover the emitting IR-LED of the TCR sensor (the clear one). The sensor has multiple uses, most of them rely on detecting the reflection of the IR emitted by the LED. In this usecase however it should suffice to just use the receiving (black) diode.

If that doesnt work, you can still switch to an LM393 based light sensor or a TSL250R-LF photodiode

[79kiko]

Solved. The simplest solution. I used a photoresistor connected between GND and D3(GPIO-0). That works fine.
Photoresistor specification:
100 lx_5kOhm_
10 lx_33kOhm_
0 lx_180kOhm_


My settings of pulse counter:

[amput]

Hi, what does it mean *0.62 in your formula if u have 1600 pulses/ kWh ? I have 10000 pulses/ kWh, what is right formula for me ?

[grovkillen]

Taken from my blog :

The energy meter is noted with the information that each pulse (blink of the led diode) equals 1 Wh, or 1000 pulses equals 1kWh. I want to show the momentary energy consumption, to do this I count pulses for 10 seconds and then multiply that number of pulses with 3600 seconds (that’s the number of seconds per hour) and then divide that number with 10 (to get the Watts which are in use at the moment).

If you want to measure the kWh you’ll just publish the pulses divided by 1000, and you’ll have that each pulse is equal to 0.001kWh.


So do you want the momentary consumption (W) or the accumulated usage (Wh)?

[grovkillen]

And remember that pulse counter is now only allowed on task/device 1...4 due to timing difficulties if all 12 (and in the future possibly 24) tasks are polled.

[amput]

For momentary consumption in Watts. Still i dont understand 0.62 in mr. 79kiko formula

[grovkillen]

Me neither... don't mind it

Just divide your value according to my suggestion.

[kimot]

He has 1600 imp per kwh

1/1600 = 0,000625 It is 0,62 you can see - last number 5 is not visible in formula )

[Lstt]

Thear friends! I am newby in ESPEasy. Can you say - how i can write total counter in flash memory - like idea in this issue - https://github.com/letscontrolit/ESPEasy/pull/69 ? Or it's really hard?