Introducing the MATEKSYS Ultra Precise I2C Power Monitor - INA-BM, powered by the acclaimed TI INA228 chip for unmatched accuracy and reliability in digital power monitoring. With a typical resistance of 200 μΩ, it minimizes power loss and supports up to three units in parallel for comprehensive monitoring. Enjoy hassle-free operation with no calibration needed and seamless compatibility with ArduPilot firmware for precise current and bus voltage readouts. Designed by MATEKSYS, the INA-BM guarantees unmatched performance and versatility across various applications.

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• Ultra-Precise Digital Power Monitoring
• No Calibration Required
• Versatile Applications
• Robust Construction
• Parallel Connectivity
• Compact Design
• Low Power Loss
• Compatibility

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• Load Current on Current Sensing Resistor: 150A (Continuous), 204.8A (Burst)
• Power Supply for I2C-INA-BM Board: 4~9V @5V pad/pin
• Ultra-Precise Power Monitor: INA228 85-V, 20-Bit
• Operating Temperatures: -40~125 °C
• Battery Voltage Sense Input: 0~85V
• Current Sense Range: 0~204.8A
• Power Consumption: 1mA
• 3.3V Indicator: LED Red
• Voltage Accuracy: ±0.1%
• Current Accuracy: ±2%
• Interface: I2C
• Parameters
  • BATT*_I2C_BUS: -> 0/1/2, depends on the FC I2C bus connected
  • BATT*_I2C_ADDR: -> 0 (or 69, 68, 65)
  • BATT*_MONITOR: -> 21 (INA2XX)
  • BATT*_MAX_AMPS_ -> 204.8
  • BATT*_SHUNT: -> 0.0002
• Physical
  
  • Board Size: 27mm*20mm*6mm
  • Weight: 4g

IMPORTANT NOTES

• The big pad on the bottom side is a dead pad. There is no circuit network on it. Solder the positive wires as close as possible to both sides of the current sensing resistor. This power monitor is compatible with ArduPilot firmware only at the moment.

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• 1x MATEKSYS Ultra Precise 12C Power Monitor - INA-BM 
• 1x JST-GH-4P to JST-GH-4P 20cm silicone wire

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