The PZEM-051 clears current readings when the load is disconnected. This is normal. However, there is a firmware bug where the current register holds the last value for 2 seconds after disconnection, then jumps to 0. To patch this in software: implement a moving average filter in your Modbus master.
Run two thin wires from the small screws on the shunt to the meter's current terminals. If your display blinks or shows "0.00" while under load, check these connections first. ⌨️ Button Cheat Sheet (The "Patched" Controls) peacefair pzem051 manual patched
Most "patched manual" references are actually code patches: The PZEM-051 clears current readings when the load
The original Peacefair PZEM-051 manual provides a basic overview of the device's features and operation. It outlines the device's specifications, installation instructions, and user interface. However, some users have reported that the manual lacks detailed information on configuration and advanced features. To patch this in software: implement a moving
- platform: modbus_controller register_type: holding address: 0x0000 name: "PZEM-051 Voltage" filters: - multiply: 0.1 - offset: -1.2 # <-- Patch to fix offset error