MCP3221 12-bit ADC

The Microchip Technology Inc. mcp3221 sensor platform allows you to use your MCP3221 ADC (datasheet) with ESPHome.

Sensor

The MCP3221 sensor platform allows you to use your MCP3221 ADC (datasheet) with ESPHome.

It uses the I2C Bus for communication.

Connect power pins (VCC/GND, 2.7V to 5.5V) and I2C (SDA/SCL).

Most configurations will set the reference_voltage = VREF pin

# Example configuration entry
sensor:
  - platform: mcp3221
    name: "MCP3221 Value"

Configuration variables

address (Optional, int): Defaults to 0x48. 0b1001XXX - X: See packaging for the last 3 bits
reference_voltage (Optional, float): The reference voltage. Should be VCC, range 2.7V to 5.5V
update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s.
All other options from Sensor.

See Also