For my assignment, I initially wanted to have the LED lights off and then turn them on via the switch. Whilst holding the switch, I wanted to use the light sensor to change the brightness by hovering my finger over it. However, I couldn’t figure out how to use the light sensor whilst using a switch. It wasn’t working for me, unfortunately. So instead, I used the switch for blinking lights in sync and the light sensor to decrease the brightness whilst it is covered. For this, I needed: wires, resistors, a pushbutton, a light sensor, and LED lights.
I implemented the code we did in class for blinking and got help from this youtube video https://www.youtube.com/watch?v=d6xLaTxFVM4 to decrease the brightness via the light sensor.
This is the code I used for decreasing the light when the sensor is covered:
void loop() {
// put your main code here, to run repeatedly:
int buttonState = digitalRead(pushButton);
ldr = analogRead(A0);
brightness = map(ldr,0,1023,0,255);
analogWrite(6, brightness);
analogWrite(3, brightness);
}
Schematic Diagram:
Project:
Future Improvements:
- I’d like to do my original idea
- I also would like the brightness of the LED light when the sensor isn’t covered to be brighter.
- I’d also like to get more confident doing the schematic drawing as it did take me a while to figure it out.