Uploaded by User35703


Hi, I want to ask you about the pzem-017 <7v circuit. Based on the picture, I tried to
use a 5 volt power supply from the cellphone charger on the usb port <7, and the
shunt resistor port side and the load were not used. just trying to connect the
cellphone charger to the usb port only.
Then I just tried to connect with the use charger cell phone to the USB port
with the use charger cellphone
Port USB < 7V
I don't try
installation on
the side this
the results that I get like this, why can't the power supply voltage be read in the range
of 1 to 5 volts? I've also set the voltage parameters. are the clothes I used wrong?
how is the actual circuit? give me a solution. thank you