SKU:U087 with Raspberry Pi 4



  • Hello,
    I wish to buy "Voltmeter Unit" SKU:U087 to use on Raspberry Pi 4 I2C bus.
    I don't understand the features about 5VDC and 3.3VDC.

    • Can you confirm the diagram on how to connect the grove cable on GPIO Pins ? Do you agree with my picture ?
      0_1639828897512_16c3368e-9c5f-4eda-a3f4-32840e0c90fe-image.png

    • can I measure tension of two 12VDC battery in serial (~24 VDC) ?

    Best regards.