pzem-cli

A command-line interface for the PZEM004T energy monitor as a front-end for the embedded-hal rust driver.

Usage

foo@bar:~$ pzem-cli [OPTIONS] <PORT> <SUBCOMMAND>

Options

Option	Description
-a, --addr	Slave address of the sensor in hexadecimal format (e.g. 5a)
-t, --timeout	Response awaiting timeout in milliseconds.

The address used by default is the universal address for single-slave environments: 0xf8. Every slave is guaranteed to respond to that address. The default timeout is 500 milliseconds.

Commands

Command	Description
read	Read and display the measurement results.
reset	Reset the internal energy counter to 0.
addr [VAL]	Set the MODBUS-RTU address to VAL if given, otherwise display the current address.
threshold [VAL]	Set the alarm threshold to VAL if given, otherwise display the current value.

Example

foo@bar:~$ pzem-cli -t 1000 /dev/ttyACM0 addr bf
foo@bar:~$ pzem-cli -a bf /dev/ttyACM0 read
Voltage: 241.6 V
Current: 0.000 A
Power: 0.0 W
Energy: 0.000 kWh
Frequency: 50.0 Hz
Power factor: 0.00
Alarm: off

License

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.