03-12-2023, 11:35 PM
here is tasmota firmware file (include SSD1306 displayer) download: https://www.kincony.com/forum/showthread.php?tid=2405
on PCB center have IIC extender for connect to your own IIC device.
if PZEM-004T have serial port, make sure the level. on A6 PCB, there is an "serial extender" port, that's ESP32's GPIO, so it support use by 3.3v level data.
on PCB center have IIC extender for connect to your own IIC device.
if PZEM-004T have serial port, make sure the level. on A6 PCB, there is an "serial extender" port, that's ESP32's GPIO, so it support use by 3.3v level data.