INA219 FeatherWing, voltage meter, Adafruit 3650

The board is based on the INA219B chip, is used to measure high voltage and DC through the I2C bus with an accuracy of up to 1%. It works with any available Feather board. The scheme supports the current up to 26 VDC, despite the powering of the 3.3 V. It will also report that the voltage is perfect for tracking battery life or solar panels durability. The amplifier measures the voltage on the resistor of 0.1 Ω, 1%. The maximum input difference of the amplifier is +/-320 mV, which means that it can measure current up to +/-3.2 A. With a 12-bit ADC, the resolution is 0.8 A.

Specification:

• Chip: INA219B
• Communication: I2C
• Supply voltage: 3.3 V
• Measuring range:
• voltage: up to 26 V
• current: up to 3.2 A
• Resolution: 0.8 mA
• Accuracy of the measurement: up to 1%
• Dimensions: 51 x 22.8 x 3.6 mm
• Weight: 3.4 g
  

Set includes:

• The Feather Wing INA219 board
• Goldpin connectors for self-soldering
• 2-pin screw connection
  

Useful links:
Manufacturer website

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