Firmware & API Reference > Pycom Modules > Shields > LIS2HH12

Accelerometer

The LIS2HH12 is a 3-Axis Accelerometer provides outputs for acceleration, roll and pitch

Constructors

class LIS2HH12(pycoproc = None, sda = ‘P22’, scl = ‘P21’)

Creates a LIS2HH12 object. Constructor must be passed a Pycoproc or I2C object to successfully construct.

Methods

LIS2HH12.acceleration()

Read the acceleration from the accelerometer. Returns a tuple with the 3 values of acceleration in g-force: (x, y, z).

LIS2HH12.roll()

Read the current roll from the accelerometer. Returns a float in degrees in the range -180 to 180.

LIS2HH12.pitch()

Read the current pitch from the accelerometer. Returns a float in degrees in the range -90 to 90. Once the board tilts beyond this range the values will repeat. This is due to a lack of yaw measurement, making it not possible to know the exact orientation of the board.

LIS2HH12.enable_activity_interrupt(threshold, duration, handler=None)

Set an activity- and inactivity interrupt for the accelerometer. This takes the arguments:

  • threshold: the activity threshold in mg, between 62 - 4000
  • duration: the duration in ms, between 160 - 40800
  • handler: The interrupt handler. When not given, it will print Activity interrupt and Inactivity interrupt The function returns a tuple containing the set values: (threshold, duration). These depend on the resolution.

 

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