ESP32-PZEM004T

This IoT project is to measure power and energy consumption using PZEM-004T v3 sensor and NodeMCU ESP32

Hardware Requirements:

• PZEM004Tv3
• ESP32 DEVKIT
• Jumper Wires Male-Female
• Project Board 400 points (I recommend using 2 board)

Modification TTL UART (5V to 3.3V)

PZEM004T v3 has a serial UART that works with 5V, to allow the communication to work at 3.3V with a board such as Raspberry or ESP32 we need to perform modification welding a resistence of 1k, so with this modification the UART will work at 5V or 3.3V

Modification Made: the 1k resistence has been welded

Connections and Wiring: