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https://github.com/RobTillaart/Arduino.git
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75 lines
1.3 KiB
C++
75 lines
1.3 KiB
C++
//
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// FILE: TSL235R_pulses.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: demo
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// DATE: 2021-05-29
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//
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// NOTE
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// This code will work up to ~150 kHz on an Arduino UNO
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// above that pulses come in faster than the code can reliably handle
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//
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// Digital Pin layout ARDUINO
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// =============================
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// 2 IRQ 0 - to TSL235R
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// 3 IRQ 1 - to TSL235R
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//
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// PIN 1 - GND
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// PIN 2 - VDD - 5V
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// PIN 3 - SIGNAL
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#include "TSL235R.h"
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TSL235R mySensor;
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volatile uint32_t cnt1 = 0;
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uint32_t oldcnt1 = 0;
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uint32_t t = 0;
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uint32_t lastMeasurement = 0;
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void count_irq1()
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{
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cnt1++;
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}
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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pinMode(2, INPUT_PULLUP);
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attachInterrupt(0, count_irq1, FALLING);
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mySensor.setWavelength(450);
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}
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void loop()
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{
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uint32_t now = millis();
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if (now - lastMeasurement >= 1000)
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{
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t = cnt1;
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uint32_t Hz = t - oldcnt1;
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oldcnt1 = t;
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Serial.print("irradiance(Hz):\t\t");
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Serial.print(mySensor.irradiance(Hz)); // assumption 1 second
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Serial.println(" uW/cm2");
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Serial.print("irradiance(puls, time):\t");
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Serial.print(mySensor.irradiance(Hz, now - lastMeasurement)); // accurate time
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Serial.println(" uW/cm2");
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lastMeasurement = now;
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}
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}
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// -- END OF FILE --
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