Frank Vannieuwkerke / ISL29125

Library for ISL29125 - I2C RGB ambient light sensor

Dependents:   ISL29125_demo FinalProject Final_NSR 4180FinalProject_copy ... more

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    Device documentation

    Detailed information is available at Intersil

    Calling the constructor

    The constructor can be instantiaded in 3 ways:

    Information

    The first two pins (SDA and SCL) always need to be declared.

    ISR mode

    void RGBsensor_irq(void)    // User ISR
{
    ....
}

ISL29125 RGBsensor(PTE0, PTE1, PTD7, &RGBsensor_irq);          // sda, scl, irq, user isr

    The user ISR is called whenever the upper/lower threshold is reached and/or when a conversion cycle is finished. The threshold (Threshold function) and end of conversion (IRQonCnvDone function) interrupts can be enabled separately.
    In this mode, PTD7 is an interrupt input.

    Limitation!

    Calling the Read function at a high rate will result in a I2C failure.
    Use a Ticker to call the Read function at regular intervals. Example : ISL29125_demo

    SYNC mode

    ISL29125 RGBsensor(PTE0, PTE1, PTD7);                        // sda, scl, sync input

    In this mode, PTD7 is a digital output. Initially, the sensor is idle (no conversions) and can be started by calling the Run function.

    Polling mode

    ISL29125 RGBsensor(PTE0, PTE1);                              // sda, scl

    In this mode, user defined functions are needed to poll the sensor status, read the sensor data, ....

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