81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
#include <Wire.h>
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#include <BH1750.h>
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#define PinLED 2 // on-board LED
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#define IN1 32
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#define IN2 14
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BH1750 lightMeter;
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void setup() {
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Serial.begin(9600);
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Wire.begin();
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lightMeter.begin();
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pinMode(IN1, OUTPUT);
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pinMode(IN2, OUTPUT);
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pinMode(PinLED, OUTPUT);
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}
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void pulsujNaprzemiennie(int czasSekundy) {
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const int steps = 150;
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int delayPerStep = (czasSekundy * 1000) / (2 * steps); // ms
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for (int i = 0; i <= steps; i++) {
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float phase = (float)i / steps;
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float brightness1 = 1.0 - phase;
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float brightness2 = phase;
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int t_on1 = (int)(brightness1 * 2000);
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int t_on2 = (int)(brightness2 * 2000);
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digitalWrite(IN1, HIGH);
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digitalWrite(IN2, LOW);
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delayMicroseconds(t_on1);
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digitalWrite(IN1, LOW);
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digitalWrite(IN2, HIGH);
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delayMicroseconds(t_on2);
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digitalWrite(IN1, LOW);
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digitalWrite(IN2, LOW);
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delay(delayPerStep - 4);
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}
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for (int i = steps; i >= 0; i--) {
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float phase = (float)i / steps;
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float brightness1 = 1.0 - phase;
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float brightness2 = phase;
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int t_on1 = (int)(brightness1 * 2000);
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int t_on2 = (int)(brightness2 * 2000);
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digitalWrite(IN1, HIGH);
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digitalWrite(IN2, LOW);
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delayMicroseconds(t_on1);
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digitalWrite(IN1, LOW);
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digitalWrite(IN2, HIGH);
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delayMicroseconds(t_on2);
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digitalWrite(IN1, LOW);
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digitalWrite(IN2, LOW);
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delay(delayPerStep - 4);
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}
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}
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void loop() {
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uint16_t lux = lightMeter.readLightLevel();
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Serial.print("Light: ");
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Serial.print(lux);
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Serial.println(" lx");
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if (lux < 10) {
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digitalWrite(PinLED, LOW);
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pulsujNaprzemiennie(5); // cykl trwa teraz 5 sekund
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} else {
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digitalWrite(PinLED, HIGH);
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delay(5 000);
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}
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}
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