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Gravity: I2C Digital Wattmeter

7,95 /6,57 excl. VAT

1 in stock

  • Free shipping from € 74,95 NL. (€ 99,95 BE / DE)
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Description I2C Digital Wattmeter - DFRobot Gravity

This is the I2C digital wattmeter from the DFRobot gravity sensor series. It offers high resolution and precision and can measure the voltage, current and power up to 26V 8A. Simple manual calibration is required before use. After that, the maximum relative margin of error is a maximum of ±0,2%.
The module uses a TI INA219 zero temperature drift current/power monitoring chip. It also includes a 2W high power low temperature drift 10mΩ alloy sampling resistor. The voltage and current resolution can reach 4mV and 1mA respectively. Under the full scale measurement condition, the maximum relative error of the measurement can be greater than 0,2%† It also provides four I2C addresses that can be configured via the 2P DIP switch. The module accurately measures bidirectional high-side currents. It is ideal for applications such as solar or battery meters where the battery needs to be charged and discharged† This status can be easily determined by positive or negative current measurements. In motor applications, the current can be monitored in real time.

Features I2C digital wattmeter

  • High precision, high resolution, long range, low temperature deviation
  • High side bidirectional current measurement
  • Compatible with 3.3V / 5V controller
  • Advanced and compact, easy to embed in the project

Specifications I2C digital wattmeter

  • Input Voltage (VCC): 3.3V ~ 5.5V
  • Voltage Range (IN+ or IN- 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: 0~206W.
  • 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
  • Weight: grams 4

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