APDS9999.cpp

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#include "APDS9999.h"
 
Adafruit_APDS9999 APDS9999::apds;
uint16_t APDS9999::proximity;
uint16_t APDS9999::threshold;
 
MinFilter<10> APDS9999::minF = MinFilter<10>(false);
TimeStep APDS9999::timeStep = TimeStep(5);
float APDS9999::minimum = 0.0f;
bool APDS9999::didBegin = false;
bool APDS9999::isBright = false;
bool APDS9999::isProx = false;
 
bool APDS9999::Initialize(uint8_t threshold)
{
    APDS9999::threshold = threshold;
 
    Wire.setClock(100000); // for longer-range transmissions
    Wire.begin();
 
#ifdef WS35
    Wire.setSDA(19);
    Wire.setSCL(18);
#else
    Wire.setSDA(18);
    Wire.setSCL(19);
#endif
 
    Wire.beginTransmission(0x39);
    uint8_t error = Wire.endTransmission();
 
    if (error == 0)
    { // SSD1306 Found
        didBegin = apds.begin();
 
        // apds.setLED(APDS9960_LEDDRIVE_12MA, APDS9960_LEDBOOST_100PCNT);
        // apds.setProxGain(APDS9960_PGAIN_1X);
    }
    else
    {
        didBegin = false;
    }
 
    return didBegin;
}
 
bool APDS9999::isBooped()
{
    GetValue();
 
    if (timeStep.IsReady())
    {
        minimum = minF.Filter(proximity);
    }
 
    return proximity > minimum + threshold;
}
 
void APDS9999::ResetI2CBus()
{
    Wire.end();   // Disable the I2C hardware
    delay(10);    // Wait a bit
    Wire.begin(); // Re-enable the I2C hardware
}
 
uint8_t APDS9999::GetValue()
{
    unsigned long cmdTime = millis();
 
    if (didBegin)
    {
        if (!isProx)
        {
            apds.enableProximitySensor(true);
            isProx = true;
        }
        uint16_t proxVal = 0;
        apds.readProximity(&proxVal);
        proximity = proxVal;
    }
 
    if (millis() - cmdTime > 100)
    {
        // Timeout occurred
        ResetI2CBus();
    }
 
    return proximity;
}
 
uint16_t APDS9999::GetBrightness()
{
    uint16_t brightness;
 
    if (didBegin)
    {
        if (!isBright)
        {
            apds.lightSensorEnabled();
            isBright = true;
        }
 
        brightness = apds.getLightGain();
    }
    else
    {
        brightness = 0;
    }
 
    return brightness;
}