The M5Stack Voltmeter Unit is a voltage meter that can monitor the voltage in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X49). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S.
±36V range LED power indicator 16-bit ADC conv ersion Resolution: Auto range, Count ≤ 16V, 1mV
Count > 16V, 7.9mV Inital accuracy 0.1%FS, ±1 count Built-in CA-IS3020S isolation chip, anti-interf erence Isolated DC-DC Up to 1000 VRMS isolation withstand v oltage Dev elopment platf orm: Arduino, UIFlow (under dev elopment)
