libsx1509

This project demonstrates interfacing of SX1509 with 96Boards CE Platform using libmraa. SX1509 is a GPIO expander that uses the i2c interface to provide 16 GPIOs all of which are 8bit PWM compatable

Table of Contents

• 1) Hardware requirements
• 2) Software
  • 2.1) Operating System
  • 2.2) Package Dependencies
• 3) Building and Running
• 4) Conclusion

1. Hardware requirements:

1. Dragonboard 410c or any of 96Boards CE
2. SX1509 Module
3. Connecting cables
4. 4x LEDs
5. Switch

2. Software

2.1 Operating System

• Linaro Debian based OS (latest)

2.2 Package Dependencies

1. MRAA Library

$ sudo apt-get install libmraa-dev

3. Building and Running:

$ git clone https://github.com/96boards-projects/libsx1509
$ cd libsx1509
$ make
$ ./sx1509

4. Conclusion:

The libsx1509 library provides support for the SX1509 GPIO expander and builds on libmraa. It provides functions such as digitalRead digitalWrite and anaglogWrite in a similar fashion to that of Arduino IDE. For detailed info take a look at the sx1509.cpp and libsx1509.h files.