M5Stack Ammeter Unit (ADS1115)

M5StackSKU: RB-Mst-65
Manufacturer #: U086

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  • M5Stack Ammeter Unit (ADS1115)
  • Monitors the current in real-time
  • Provides maximum measurement current of ±4 A
  • Features an internal integrated 4 A fuse
  • Built-in DC-DC isolated power supply
  • Communication through I2C

The M5Stack Ammeter Unit (ADS1115) is a current meter that can monitor the current in real-time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X48).

The unit has a maximum measurement current of ±4 A, and an internal integrated 4 A fuse to prevent excessive measurement current from burning out the circuit. Minimal Resolution reaches 0.15626 mA.

  • 1 x Ammeter Unit
  • 1 x Grove Cable


  • 65 x 24 x 8 mm
  • Measuring range: ±4 A
  • Withstand voltage: 1000 V
  • Protocol: I2C
  • 16-bit ADC conversion
  • LED power indicator
  • Overcurrent protection
  • Minimal Resolution(mA) reaches 0.15626
  • No recalibration (EEPROM factory write)
  • Accuracy up to ±1999
  • Built-in CA-IS3020S isolation chip, anti-interference
  • Isolated DC-DC
  • Development platform: Arduino, UIFlow (Blockly, Python)
  • 2 x LEGO compatible holes
  • Weight: 9 g

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