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An LED is a type of light source which is typically fairly small and has low power requirements.

1
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Use a photoresistor (also called LDR). Connect the photoresistor between Vcc and an analog input and place it physically next to the LED you want to monitor. In your arduino code simply monitox … the analog input value. When the LED will be on the photoresistor will have a lower resistance andyou will read a higher analog voltage. …
answered Oct 31 '18 by Andre Courchesne
1
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The signals are clear on the bulb pcb. Take a multimeter in continuity mode and probe to see which pins on the round connector is DI, GND and +12v. Then connect DI to the arduino. +12v to the strip. GND from the Arduino, LED strip and your +12v source should all be conected together. …
answered Oct 20 '18 by Andre Courchesne
1
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digital pin 13 #define led 8 #include <Servo.h> Servo servoMain; // Define our Servo LiquidCrystal lcd(7, 6, 5, 4, 3, 2); void setup() { pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode … (led, OUTPUT); Serial.begin(9600); // Starts the serial communication lcd.begin(16, 2); servoMain.attach(11); // servo on digital pin 11 } void loop() { servoMain.write(5); // Turn Servo Left to …
answered May 2 '17 by Andre Courchesne
1
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Use millis() instead on delay. Ref: https://www.arduino.cc/en/reference/millis
answered Jan 14 '17 by Andre Courchesne