PZEM 004T V1

PZEM004TV1 Library

Author: Dali Hillary
Role: Software & Hardware Engineer

Overview

The PZEM004TV1 library is designed to interface with the PZEM-004T V1.0 module, a power monitoring device. This library provides an easy-to-use set of functions to read various electrical parameters such as voltage, current, power, energy, frequency, power factor, and alarm status.

Features

• Simple Interface: Easy-to-use functions for reading electrical parameters.
• SoftwareSerial Support: Utilizes the SoftwareSerial library for communication, allowing flexible pin assignment.
• CRC Calculation: Includes a CRC calculation method to ensure data integrity during communication.

Installation

1. Download the library files from the repository.
2. Extract the files into your Arduino libraries folder.
3. Rename the extracted folder to "PZEM004TV1" if necessary.

Usage

1. Include the Library:

   #include "PZEM004TV1.h"

2. Instantiate the PZEM004TV1 Object:

   PZEM004TV1 pzem(RX_PIN, TX_PIN); 

3. Read Electrical Parameters:

   float voltage = pzem.readVoltage();
   float current = pzem.readCurrent();
   float power = pzem.readPower();
   float energy = pzem.readEnergy();
   float frequency = pzem.readFrequency();
   float powerFactor = pzem.readPowerFactor();
   bool alarmStatus = pzem.checkAlarmStatus();

4. Reset Energy:

   pzem.resetEnergy();

Notes

• Ensure proper connections of the PZEM-004T V1.0 module to the Arduino.
• Refer to the datasheet for the PZEM-004T module for specific details on electrical parameters and communication.

Example

#include "PZEM004TV1.h"

PZEM004TV1 pzem(RX_PIN, TX_PIN);

void setup() {
  Serial.begin(9600);
}

void loop() {
  float voltage = pzem.readVoltage();
  float current = pzem.readCurrent();
  float power = pzem.readPower();
  float energy = pzem.readEnergy();
  float frequency = pzem.readFrequency();
  float powerFactor = pzem.readPowerFactor();
  bool alarmStatus = pzem.checkAlarmStatus();

  Serial.println("Voltage: " + String(voltage) + " V");
  Serial.println("Current: " + String(current) + " A");
  Serial.println("Power: " + String(power) + " W");
  Serial.println("Energy: " + String(energy) + " kWh");
  Serial.println("Frequency: " + String(frequency) + " Hz");
  Serial.println("Power Factor: " + String(powerFactor));
  Serial.println("Alarm Status: " + String(alarmStatus));

  delay(5000);
}