(09-13-2023, 10:18 PM)admin Wrote: do you have connect with AC220v L and N wire? you can try connect AC220v with every "voltage" input port.
take a photo of your whole M16v2 pcb board, now only can see half of board.
Today I have tested every voltage input port. All readings are 0 volts. No change ever.
My home voltage is 220v.
Attached in full image of the board.
(I'm aware that currently in the photo there is not 220v attached, the wires were in the way, so I removed the module for the photo)
I was playing around with the code today in zmpt101b and readAnalog on GPIO34, GPIO36, GPIO39 always seem to return 0.
ZMPT101B::getRmsVoltage Vnow: 0, rawRead: 0, zeroP: 0, PIN: 39
ZMPT101B::getRmsVoltage Vnow: 0, rawRead: 0, zeroP: 0, PIN: 36
ZMPT101B::getRmsVoltage Vnow: 0, rawRead: 0, zeroP: 0, PIN: 34
Is there any calibration required? Any suggestions on how to test the board or zmpt101b chip to see if this is the issue?