INA219 I2C Module – Current, Voltage and Power Measurement

Module for accurate voltage, current and power measurement via I2C, suitable for Arduino, ESP32 and other microcontrollers.
4.00 EUR
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Shown according to the lowest price in the 30 days before the discount.
Stock 7 piece · In stock
Internal code: 23883781
Units per package 1
Unit of measure
Measurement quantity 1
Voltage range0 – 26V DC
Supply voltage range (VCC)3,0 – 5,5 V DC
Maximum current3.2A
InterfaceI2C (configurable address)
FunctionAccurate current, voltage and power measurement
ImportChina
Weight 0.004 kg

Product details

INA219 module is an intelligent current and voltage sensor designed to monitor voltages up to 26V and currents up to 3.2A. It communicates through an I2C (IIC) interface, making it easy to connect to microcontrollers such as Arduino, ESP32 and Raspberry Pi. Ideal for projects that need to track power consumption, battery status or electronic-device power. The module includes a precision amplifier and can calculate power in real time.

✅ Features:

  • Voltage range: 0–26 V DC

  • Maximum current: 3.2 A

  • Interface: I2C (configurable address)

  • Accurate measurement of current, voltage and power

  • Compact dimensions and easy integration

➡ INA219 module application examples:

  • Monitoring battery current and voltage

  • Measuring power consumption in DC circuits

  • Monitoring motor power supply

  • Measuring solar panel output

  • Checking current draw in IoT devices

  • Electronic load testing

  • BMS

💡 Most commonly recommended wiring

 

 

 

 

INA219 ESP32
VCC 3.3 V or 5 V
GND GND
SDA GPIO21
SCL GPIO22
 

 

 

 

 

 

 

The ESP32 allows various GPIO pins to be used for I2C communication (SDA and SCL) thanks to its flexible I2C hardware. Common GPIO choices include:

  
    
Function Recommended GPIO pins
SDA 21, 18, 17, 25, 23, 4 (examples)
SCL 22, 19, 16, 26, 5, 15 (examples)
 
 
 
*GPIO34 – GPIO39
Input-only pins (only inputs). They do not support output functions or I2C SCL/SDA.

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