The M5Stack Ameter Unit is a current meter that can monitor the current in real time. The 16-bit ADS1115 ADC (analog-to-digital) converter can be used to communicate through I2C protocol (By default the I2C address is 0X48 unless manually modified). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply. The I2C interface is also electrically isolated through the low-power isolator module CA-IS3020S, This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits.
±4A range 16-bit ADC conv ersion Inital Accurancy 0.1%FS, ±1 count Resolution 0.3mA LED power indicator 4A Slow-blow Fuse Factory calibration (Cal data sav ed in on-board EEPROM) Built-in I2C isolator CA-IS3020S Isolated DC-DC Dev elopment platf orm: Arduino, UIFlow (under dev elopment) 2x LEGO compatible holes
