Cheap Chinese Power Meter made wireless

[tastycarp]

Now i flashed espurna 1.9.5 for my ECH1560 Chinese powermeter. (wemos d1-mini inside)
It is showing some values but it is a bit jumpy:

I have done the same mod (wemos mini wired directly) and it is jumpy as well just like your gif. Did you get to the bottom of this?

[Raspberry Piet]

Now i flashed espurna 1.9.5 for my ECH1560 Chinese powermeter. (wemos d1-mini inside)
It is showing some values but it is a bit jumpy:

I have done the same mod (wemos mini wired directly) and it is jumpy as well just like your gif. Did you get to the bottom of this?

No but xoseperez wants to fix it someday issue 596

[tastycarp]

Ahh Thanks for the info. It sounds like he owns a few ehc1560 now. so hopefully not too far off. I will put mine into the one day project pile!

[DaNii78]

I ordered three powermeters and all three have a different printed circuit board. The 1st and the 3rd with spi interface, the 2nd with serial interface.
For the 3rd powermeter I made a pcb for the wemos and power supply, it just fitted in height.
3pwrmtrs (Small).jpg

How did you wire the 3rd power meter?

[Kapee]

Here is the schematic

[DaNii78]

Here is the schematic

Thanks you so much!

I just recieved a power meter with an unknown chip. It's labeled with "BL6523GX". Does anybody knows if it's compatible or how can be hacked?

Thanks you!

[SweetPants]

Here is the schematic

Just a remark, I made the same 'mistake' viewtopic.php?f=38&t=7325&start=40#p149833 and added some opto-couplers between the powermeter board and the ESP for safety because I used ESP07 and external antenna's.

[DaNii78]

Here is the schematic

Just a remark, I made the same 'mistake' viewtopic.php?f=38&t=7325&start=40#p149833 and added some opto-couplers between the powermeter board and the ESP for safety because I used ESP07 and external antenna's.

So it's better add the opto-couplers?

[SweetPants]

Here is the schematic

Just a remark, I made the same 'mistake' viewtopic.php?f=38&t=7325&start=40#p149833 and added some opto-couplers between the powermeter board and the ESP for safety because I used ESP07 and external antenna's.

So it's better add the opto-couplers?

Only if you have external connections (like a WiFi antenna)

[DaNii78]

I can't make it work with a ESP-01...

Anybody has tried with this ESP?

[SweetPants]

ESP-01 has not enough memory i think. You probably get compiler/link errors?

[DaNii78]

No, I can compile and the code gets uploaded but I always obtain a 0 value in the voltage measure.