Related Config File Sections:
This chips can be connected to I2C and act a tilt and leveler. Available on adafruit (and elsewhere).
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.
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.
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