MicroPython Library

The bma400 module talks to the breakout over I2C. It is a port of the Soldered BMA400 Arduino library. You create a BMA400 object with your machine.I2C bus, read the acceleration with get_sensor_data(), and use the same object for the step counter and the chip's interrupts. The constructor raises an exception when the sensor does not answer; every other method stores its result in sensor.status instead, which status_string() turns into text.

Not installed yet? Follow Quick Start before using the functionality pages.

Public sourceSoldered BMA400 MicroPython libraryMicroPython module bma400.py for the Soldered BMA400 breakout, I2C only, with three examples.Pinned reference: commit 484a5be

Functionality

Each page starts with one verified module example and explains every function the example uses to get that result.

MicroPython exampleBasic readingsRead X, Y and Z acceleration in g in a loop.bma400-basicReadings.pyMicroPython exampleMotion detectionLet the BMA400 watch for movement and signal it on INT1.bma400-motionDetection.pyMicroPython exampleStep counterCount steps and tell walking, running and standing still apart, on the chip.bma400-stepCounter.py