LSM303DLHC

Overview

Three axis accelerometer, magnetometer and temperature sensor.

Manual

Command

• Command number: 0

  Description: Existence check.

  Argument 1: unused

  Argument 2: unused

  Returns: Success

• Command number: 1

  Description: Performs a test read/write to verify that the hardware sensor is present.

  Argument 1: unused

  Argument 2: unused

  Returns: Ok(()) if presence test has started successfully, BUSY otherwise.

• Command number: 2

  Description: Set Accelerometer Power Mode.

  Argument 1: Accelerometer Data rate defined in manual table 20, page 25

  Argument 2: Low power mode (1 on, 0 off)

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 3

  Description: Set Accelerometer Scale and Resolution.

  Argument 1: Accelerometer scale defined in manual table 27, page 27

  Argument 2: High resolution (1 on, 0 off)

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 4

  Description: Set Magnetometer Temperature Enable and Data Rate.

  Argument 1: Temperature enable (1 on, 0 off)

  Argument 2: Magnetometer Data rate defined in manual table 72, page 37

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 5

  Description: Set magnetometer range.

  Argument 1: Magnetometer range defined in manual table 75, page 38

  Argument 2: unused

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 6

  Description: Reads Acceleration X, Y and Z

  Argument 1: unused

  Argument 2: unused

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 7

  Description: Reads the temperature

  Argument 1: unused

  Argument 2: unused

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

• Command number: 8

  Description: Reads Magnetometer X, Y and Z

  Argument 1: unused

  Argument 2: unused

  Returns: Ok(()) if there is no other command in progress, BUSY otherwise.

Subscribe

All the commands return a callback when done.

• Subscribe number 0

  Description: Called when commands are done

  Argument 1:

  • Command 1: 1 present, 0 not present
  • Command 6: X acceleration in m/s2 (not scaled)
  • Command 7: temperature in deg C * 8
  • Command 8: X magnetometer in Gauss (not scaled)

  Argument 2:

  • Command 6: Y acceleration in m/s2 (not scaled)
  • Command 8: Y magnetometer in Gauss (not scaled)

  Argument 3:

  • Command 6: Z acceleration in m/s2 (not scaled)
  • Command 8: Z magnetometer in Gauss (not scaled)

Allow

Unused for the LSM303DLHC driver. Will always return ENOSUPPORT.