DeltaLima
28df687bf9
PCB lives now in its own git repo https://git.la10cy.net/DeltaLima/CanGrow-12V-PCB
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
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*
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* include/Sensor/06_TCS34725.h - header for I2C color sensor TCS34725
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*
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*
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*
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*/
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//#include "TCS34725.h"
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#include "Adafruit_TCS34725.h"
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#define SENSOR_06_NAME "TCS34725"
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const byte Sensor_06_TCS34725_Addr[] = { 0x29 };
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Adafruit_TCS34725 TCS34725[sizeof(Sensor_06_TCS34725_Addr)];
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/* This library causes a 240ms (or greater if chosen) delay when reading the values from the sensor
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* this is not optimal, and there are libs workarounding this behaviour.
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* But unfortunatelly the other libs wont connect successful by i2c to the sensor,
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* which only the adafruit lib does reliably 240MS integration time and 4x gain
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* seems to be the sweet spot between delay and value resolutin */
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/* Create main data array specifying max amount of readings */
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float Sensor_06_TCS34725[sizeof(Sensor_06_TCS34725_Addr)][5];
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void Sensor_06_TCS34725_Update(const byte AddrId) {
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uint16_t r, g, b, c, colorTemp, lux;
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TCS34725[AddrId].getRawData(&r, &g, &b, &c);
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colorTemp = TCS34725[AddrId].calculateColorTemperature_dn40(r, g, b, c);
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lux = TCS34725[AddrId].calculateLux(r, g, b);
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Sensor_06_TCS34725[AddrId][0] = colorTemp;
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Sensor_06_TCS34725[AddrId][1] = lux;
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Sensor_06_TCS34725[AddrId][2] = r;
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Sensor_06_TCS34725[AddrId][3] = g;
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Sensor_06_TCS34725[AddrId][4] = b;
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}
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bool Sensor_06_TCS34725_Init(const byte AddrId) {
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/* Sensor Init function
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*
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* returns true (1) when Init was successful
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* returns false (0) if not.
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*/
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const static char LogLoc[] PROGMEM = "[Sensor:06_TCS34725:Init]";
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bool returnCode;
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if(TCS34725[AddrId].begin()) {
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/* Here I hardcoded here the values for Integration time and Gain.
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* For calibration I used my desk lamp and a lux smartphone app.
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* I fooled around until the smartphone app reading was kinda the
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* same as the TCS34725 ones. Yay!
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*
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* Comes out TCS34725_INTEGRATIONTIME_240MS and TCS34725_GAIN_16X
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* seem to be good values. Smartphone reading of my desk lamp is
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* 3507lx and on the exakt same spot, height, angle and so on the
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* TCS34725 measures 3487lx. I guess this is fine. */
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Log.notice(F("%s found at addr 0x%x - Integration time: 240ms Gain: 16x" CR), LogLoc, Sensor_06_TCS34725_Addr[AddrId]);
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TCS34725[AddrId].setIntegrationTime(TCS34725_INTEGRATIONTIME_240MS);
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TCS34725[AddrId].setGain(TCS34725_GAIN_16X);
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Sensor_06_TCS34725_Update(AddrId);
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returnCode = true;
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} else {
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Log.error(F("%s FAILED! Not found at addr 0x%x" CR), LogLoc, Sensor_06_TCS34725_Addr[AddrId]);
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returnCode = false;
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}
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return returnCode;
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}
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