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- #define TRANSISTOR_GATE_PIN 2
- #define LIGHT_LEVEL_INPUT_PIN A0
- #define FLASH_DURATION_MS 5
- int lightLevel;
- int lastLightLevel = 1023;
- void setup() {
- pinMode(TRANSISTOR_GATE_PIN, OUTPUT);
- }
- void loop() {
- lightLevel = analogRead(LIGHT_LEVEL_INPUT_PIN);
- if (lightLevel > ((lastLightLevel + 1023) / 2)) {
- digitalWrite(TRANSISTOR_GATE_PIN, HIGH);
- delay(FLASH_DURATION_MS);
- digitalWrite(TRANSISTOR_GATE_PIN, LOW);
- }
- lastLightLevel = lightLevel;
- }
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