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

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

Anybody has tried with this ESP?

Here is the schematic Just a remark, I made the same 'mistake' https://www.domoticz.com/forum/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?

Kapee wrote: ↑Monday 30 July 2018 13:55 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!

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 ...