RAKwireless RAK16002 Coulomb Sensor Module - LTC2941, I2C Interface, ±1A Range, 1% Accuracy
The RAKwireless RAK16002 is a high-precision coulomb counting sensor module based on the Analog Devices LTC2941, designed for accurate battery charge and discharge monitoring in low-power IoT systems. It integrates seamlessly via I2C with WisBlock base boards like the RAK5005-O and is optimized for single-cell Li-Ion batteries.
Features
- High-precision coulomb counter with 1% charge accuracy for accurate battery state-of-charge (SoC) tracking.
- Wide ±1 A current sensing range suitable for monitoring charge/discharge cycles in low-power applications.
- I2C digital interface for easy integration with microcontrollers, Raspberry Pi, ESP32, and WisBlock systems.
- Ultra-low power operation with <100 µA quiescent current, ideal for battery-powered and remote IoT deployments.
- Programmable alert output triggers interrupts when accumulated charge exceeds user-defined thresholds.
Out of stock
The RAK16002 module utilizes the Analog Devices LTC2941 coulomb counter IC to precisely measure the integrated charge flowing into and out of a battery. It operates by sensing the voltage drop across a low-value external sense resistor, providing a direct digital readout of accumulated charge via its I2C interface. This method offers superior accuracy compared to voltage-based SoC estimation, especially under variable load conditions.
Designed for harsh environments, the module operates across an industrial temperature range from -40°C to +85°C. Its 2.7V to 5.5V supply range makes it compatible with a wide variety of single-cell Li-Ion, Li-Poly, and other battery chemistries. The module’s compact form factor and standardized 40-pin WisConnector allow for rapid prototyping and deployment within the RAKwireless WisBlock ecosystem.
Additional Information
| Weight | 0.012 kg |
|---|---|
| Dimensions | 2.5 × 1.5 cm |
