INA219 Bi-Directional DC Current Voltage Power Sensor Module
INA219 is an I2C high-precision bidirectional power sensor. It monitors 0~26V bus voltage plus forward/reverse DC current with 12-bit resolution, perfect for battery capacity testing and solar panel power measurement with Arduino.
Description
Key Parameters
- Operating Voltage: 3V ~ 5V
- Bus Voltage Measurement Range: 0V ~ 26V
- Temperature range: -40℃ ~ +85℃, max measuring error ≤1%
- Max input offset: 100uV, 12-bit high resolution with zero drift design
- Module Dimension: 25.5 × 22.3mm
- Pin headers need simple soldering before use
Features & Application
The sensor supports high-side sampling and bidirectional DC current detection via standard I2C communication. Zero-drift circuit ensures stable high-precision reading. Widely applied to battery remaining capacity monitoring, solar panel power statistics and various Arduino power supply detection projects.
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