Description :

-Gravity: I2C Digital Wattmeter is a high-resolution, high-precision, large-scale measurement module that can measure voltage, current, and power within 26V 8A
-Maximum relative error is no more than ±0.2% (requires manual calibration before use)
-Can be used for power consumption or battery life evaluation of solar energy systems, batteries, motors, controllers, or electronic modules
-Adopts TI INA219 zero temperature drift current/power monitoring chip and 2W high power low temperature drift 10mΩ alloy sampling resistor
-Voltage and current resolution can reach 4mV and 1mA respectively
Provides four I2C addresses that can be configured via the 2P DIP switch
-Accurately measures bi-directional high-side currents (current flowing through the power supply or battery positive)
-Especially useful in solar or battery fuel gauge applications where the battery needs to be charged and discharged
-Can be used to measure the power consumption of various electronic modules or the entire project to evaluate battery life.

Features:

•High precision, high resolution, large range, low temperature drift
•Bidirectional current high side measurement
•Compatible with 3.3V/5V controller
•Sophisticated and compact, easy to embed in the project
-Applications:
•Solar Power Management
•Battery Fuel Gauge
•Electronic Module Power Evaluation
-Specifications:
•Input Voltage (VCC) : 3.3V~5.5V
•Voltage Range (IN+ or IN- relative to GND): 0 ~ 26 V
•Voltage Resolution: 4 mV
•Voltage Relative Error: <±0.2% (Typical)
•Current Range: 0 ~ ±8A (Bidirectional current)
•Current Resolution: 1mA
•Current Relative Error: <±0.2% (Typical, manual calibration required)
•Power Range: 0 ~ 206 W
•Power Resolution: 20 mW (Hardware) / 4 mW (Software)
•Quiescent Current: 0.7 mA
•Interface: Gravity I2C (logic level: 0-3.3V)
•I2C Address: Four options 0x40, 0x41, 0x44, 0x45
•Dimension: 30.0mm*22.0mm/1.18*0.87 in
•Weight: 4g