70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#include <Wire.h>
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#include <Adafruit_TCS34725.h>
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/* Initialise with specific int time and gain values */
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Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
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const int interruptPin = 2;
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volatile boolean state = false;
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//Interrupt Service Routine
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void isr()
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{
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state = true;
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}
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/* tcs.getRawData() does a delay(Integration_Time) after the sensor readout.
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We don't need to wait for the next integration cycle because we receive an interrupt when the integration cycle is complete*/
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void getRawData_noDelay(uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c)
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{
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*c = tcs.read16(TCS34725_CDATAL);
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*r = tcs.read16(TCS34725_RDATAL);
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*g = tcs.read16(TCS34725_GDATAL);
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*b = tcs.read16(TCS34725_BDATAL);
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}
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void setup() {
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pinMode(interruptPin, INPUT_PULLUP); //TCS interrupt output is Active-LOW and Open-Drain
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attachInterrupt(digitalPinToInterrupt(interruptPin), isr, FALLING);
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Serial.begin(9600);
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if (tcs.begin()) {
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Serial.println("Found sensor");
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} else {
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Serial.println("No TCS34725 found ... check your connections");
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while (1);
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}
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// Set persistence filter to generate an interrupt for every RGB Cycle, regardless of the integration limits
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tcs.write8(TCS34725_PERS, TCS34725_PERS_NONE);
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tcs.setInterrupt(true);
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Serial.flush();
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}
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void loop() {
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if (state) {
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uint16_t r, g, b, c, colorTemp, lux;
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getRawData_noDelay(&r, &g, &b, &c);
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colorTemp = tcs.calculateColorTemperature(r, g, b);
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lux = tcs.calculateLux(r, g, b);
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Serial.print("Color Temp: "); Serial.print(colorTemp, DEC); Serial.print(" K - ");
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Serial.print("Lux: "); Serial.print(lux, DEC); Serial.print(" - ");
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Serial.print("R: "); Serial.print(r, DEC); Serial.print(" ");
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Serial.print("G: "); Serial.print(g, DEC); Serial.print(" ");
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Serial.print("B: "); Serial.print(b, DEC); Serial.print(" ");
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Serial.print("C: "); Serial.print(c, DEC); Serial.print(" ");
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Serial.println(" ");
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Serial.flush();
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tcs.clearInterrupt();
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state = false;
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}
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}
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