MMA8451-based accelerometers

Related Config File Sections
hardware:
accelerometers:

This chips can be connected to I2C and act a tilt and leveler. Available on adafruit (and elsewhere).

Configure using:

hardware:
  accelerometers: mma8451
accelerometers:
  my_accelerometer:
    level_x: 0
    level_y: 0
    level_z: 1
    number: 1-29
This example is tested to be valid MPF config. However, it is not integration tested.
hardware:
  accelerometers: mma8451
accelerometers:
  my_accelerometer:
    level_x: 0
    level_y: 0
    level_z: 1
    number: 1-29

This will configure an MMA8451 on I2C bus 1 with address 0x1D (29 decimal which is the default for this device). The exact numbering depends on your i2c platform.

../../_images/mma8451-i2c-usb-accelerometer.jpg

The device in the picture is using smbus on linux as i2c platform with an Atiny85-based I2C-USB adapter.

What if it did not work?

Have a look at our hardware troubleshooting guide.