Using the I2C bus to control a digital accelerometer with the mraa library
Sometimes, the features included in the upm
library for a specific sensor do not include all of its possible usages and configurations. An example of this situation is the upmAdxl345.Adxl345
class that we used in our previous example. This class doesn't allow us to configure the desired scale for the accelerometer while the sensor supports the following four selectable measurement ranges: ±2g, ±4g, ±8g and ±16g. If we want to use specific features that aren't included in the upm
module, we can use the appropriate mraa
class to interact with the sensor, in this case, we can use mraa.I2c
to control the digital accelerometer through the I2C bus.
We will use the C++ source code for the upm module as a baseline to write our own Python code that controls the accelerometer through the I2C bus using the mraa.I2c
class. The C++ source code file is adxl1345.cxx
and it can be found in the following GitHub URL: http://github.com...