OnionOmega2I2CExpanders

Environment to compile

Compiler in makefiles is set to the cross-compiler.

To compile the sources on cross-compiler or direct on device:

• dependencies

  • two environment variable with full path should be exported (a settings.sh is provided with my defaults, those should be replaced)

  • i2c-exp-drivers obtained from omega github https://github.com/OnionIoT/i2c-exp-driver as PREFIX_I2C_EXP_DRIVER

  • fast-gpio obtained from omega github https://github.com/OnionIoT/fast-gpio as PREFIX_FAST_GPIO

• in the eclipse settings (located in settings/onion.include.xml) replace the path to the correct location of crosscompiler and libraries

DRIVERS

• Adafruit PCA9685 PWM Servo Driver

• Sparkfun SX1509 expander

• PCF8574 IO expander

• PCF8591 ADC expander