library

PZEM-004T

NodeJS library implementation on Serial Port.

Basic schema

Features

• Read all measurement
• Read/Write address
• Read/Write alarm thresold
• Reset energy value
• Do a calibration

Quick Start

const pzem004t = require('pzem-004t')

// init device on port
const device = new pzem004t({ path: "COM1"})
device.connect()

// do some stuff
const data = await device.getMeasurements()
...
...

// close connection
device.close()

Documentation

Constructor options

Option name	Type	Required	Default value	Description
path	String	true		Path of serial port, windows 'COM1', unix /dev/ttyS0
debug	Boolean	false	false	enable debug trace
address	Number (int)	false	1	set slave address

Methods

• getMeasurments()
• getVoltage()
• getCurrent()
• getPower()
• getEnergy()
• getFrequency()
• getPowerFactor()
• getAlarm()
• getAlarmThresold()
• getAddress()
• setAlarmThresold(value: number)
• setAddress(value: number)
• resetEnergy()
• calibration()
• close()