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132 lines
4.6 KiB
Markdown
132 lines
4.6 KiB
Markdown
UPM (Useful Packages & Modules) Sensor/Actuator repository for MRAA
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==============
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The UPM repository provides software drivers for a wide variety of commonly
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used sensors and actuators. These software drivers interact with the
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underlying hardware platform (or microcontroller), as well as with the attached
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sensors, through calls to [MRAA](https://github.com/intel-iot-devkit/mraa) APIs.
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Programmers can access the interfaces for each sensor by including the sensor’s
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corresponding header file and instantiating the associated sensor class. In the
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typical use case, a constructor initializes the sensor based on parameters that
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identify the sensor, the I/O protocol used and the pin location of the sensor.
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C++ interfaces have been defined for the following sensor/actuator types, but
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they are subject to change:
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* Light controller
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* Light sensor
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* Temperature sensor
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* Humidity sensor
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* Pressure sensor
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* Gas sensor
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* Analog to digital converter
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The developer community is encouraged to help expand the list of supported
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sensors and actuators and provide feedback on interface design.
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### Example
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A sensor/actuator is expected to work as such (here is the MMA7660 accelerometer API):
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```C++
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// Instantiate an MMA7660 on I2C bus 0
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upm::MMA7660 *accel = new upm::MMA7660(MMA7660_I2C_BUS,
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MMA7660_DEFAULT_I2C_ADDR);
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// place device in standby mode so we can write registers
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accel->setModeStandby();
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// enable 64 samples per second
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accel->setSampleRate(upm::MMA7660::AUTOSLEEP_64);
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// place device into active mode
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accel->setModeActive();
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while (shouldRun)
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{
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int x, y, z;
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accel->getRawValues(&x, &y, &z);
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cout << "Raw values: x = " << x
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<< " y = " << y
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<< " z = " << z
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<< endl;
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float ax, ay, az;
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accel->getAcceleration(&ax, &ay, &az);
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cout << "Acceleration: x = " << ax
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<< "g y = " << ay
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<< "g z = " << az
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<< "g" << endl;
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usleep(500000);
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}
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```
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Browse through the list of all [examples](https://github.com/intel-iot-devkit/upm/tree/master/examples).
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Multi-sensor samples for the starter and specialized kits can be found in the
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[iot-devkit-samples](https://github.com/intel-iot-devkit/iot-devkit-samples) repository.
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### Supported Sensors
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Supported [sensor list](http://iotdk.intel.com/docs/master/upm/modules.html) from API documentation.
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You can also refer to the [Intel® IoT Developer Zone](https://software.intel.com/iot/sensors).
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### IDE Integration
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If you would like to create projects and run the UPM samples using an Intel recommended IDE,
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please refer to the Intel Developer Zone IDE page.
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<a href="https://software.intel.com/iot/software/ide"><img src="docs/icons/allides.png"/></a>
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### Building UPM
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See building documentation [here](docs/building.md).
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[](https://travis-ci.org/intel-iot-devkit/upm)
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### Making your own UPM module
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Porting [link](docs/porting.md) has more information on making new UPM modules.
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There is also an example available gfor max31855 [sensor](docs/max31855.md).
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Guide on creating Java [bindings](docs/creating_java_bindings.md).
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### Naming conventions and rules for new UPM contributions
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Before you begin development, take a look at our naming [conventions](docs/naming.md).
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Also, please read the guidelines for contributions [to UPM](docs/contributions.md).
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Don't forget to check the documentation [section](docs/documentation.md).
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Make sure you add yourself as an author on every new code file submitted.
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If you are providing a fix with significant changes, feel free to add yourself
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as a contributor. Signing-off your commits is mandatory.
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API Documentation
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==============
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<a href="http://iotdk.intel.com/docs/master/upm"><img src="docs/icons/c++.png"/></a>
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<a href="http://iotdk.intel.com/docs/master/upm/java"><img src="docs/icons/java.png"/></a>
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<a href="http://iotdk.intel.com/docs/master/upm/python"><img src="docs/icons/python.png"/></a>
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<a href="http://iotdk.intel.com/docs/master/upm/node"><img src="docs/icons/node.png"/></a>
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### API Compatibility
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Even if we try our best not to, every once in a while we are forced to modify
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our API in a way that will break backwards compatibility. If you find yourself
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unable to compile code that was working fine before a library update, make sure
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you check the [API changes](docs/apichanges.md) section first.
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**NOTE** - Our **C++ header files** changed extension from *.h* to *.hpp*!
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### Changelog
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Version changelog [here](docs/changelog.md).
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### Known Limitations
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List of known limitations [here](docs/knownlimitations.md).
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