Peacefair PZEM-004T Energy Monitoring module

The PZEM-004T is a popular energy monitoring module that can be used to measure electrical parameters such as voltage, current, power, and energy consumption. It is widely used in various applications like power meters, energy management systems, and IoT-based projects.

Features of the PZEM-004T Module:

1. Voltage Measurement:

   • Measures the AC voltage (typically 80V to 260V).
   • Provides real-time voltage data to track power fluctuations.

2. Current Measurement:

   • Measures the AC current (up to 10A).
   • Ideal for monitoring the current draw of connected devices or appliances.

3. Power Measurement:

   • Measures the active power (in watts) being consumed by a load.
   • Useful for understanding the actual power consumption of a device.

4. Energy Consumption:

   • Measures energy in kilowatt-hours (kWh), making it suitable for tracking the energy consumption of electrical devices over time.

5. Communication:

   • The module communicates with microcontrollers (like Arduino or ESP8266/ESP32) using RS485 or TTL (UART) communication protocols.
   • RS485 is suitable for long-distance communication, while TTL (UART) is used for shorter distances and more direct connections.

6. Accuracy:

   • It offers decent accuracy, typically within 1-2% for most measurements.

7. Display (optional):

   • The module doesn't come with a built-in display but can be connected to external displays such as LCD or OLED screens to show the measurements.
   • Alternatively, data can be sent to a web interface or a mobile app via IoT systems.

8. Power Supply:

   • The module can be powered by the same supply as the microcontroller (e.g., 5V from Arduino or 3.3V from ESP32), but it also works with the mains power directly for measuring high voltage and current.