Adafruit INA219 CURRENT SENSOR MODULE STEMMA QT I2C

The INA219 chip provides a complete solution for measuring current, voltage, and power. It features a 12-bit ADC with a current resolution of about 0.8 mA. The breakout includes a built-in 0.1 Ω shunt resistor and level shifting circuitry, making it compatible with both 3.3 V and 5 V logic. Thanks to the STEMMA QT connectors, you can also connect it without soldering. Ideal for monitoring batteries, motors, or other loads with accurate power measurement.

Technical Details

• Current measurement range: ±3.2 A (built-in 0.1 Ω shunt)
• Voltage measurement range: 0–26 V
• Resolution: 12-bit ADC, approx. 0.8 mA per step
• Calculated values: current (A), voltage (V), power (W)
• I2C interface with adjustable address
• Operating voltage: 3.0–5.5 V, compatible with 3.3 V and 5 V logic
• STEMMA QT / Qwiic connectors for easy wiring
• Dimensions: 26 mm × 23 mm × 4 mm

Package Contents

• 1 × Adafruit INA219 Current Sensor Breakout (assembled and tested)
• Pin header for breadboard use

Link

Adafruit product page