The M5Stack VMeter Unit is a voltmeter module designed for the M5Stack sets. It can measure DC voltage in the range from 0 to 36 V with an accuracy of approx. 0.5 mV. It is based on a 16-bit ADC converter, which communicates with the evaluation kit via the I2C interface (Grove connector). The module has a built-in isolated power circuit, and the I2C interface is also galvanically isolated through the CA-IS3020S low-power isolator, which prevents noise and surges from penetrating the data bus. The voltmeter will be used in projects where accurate voltage measurement is required. Full documentation is available on the product page.

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