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Lab 2 Galyardt

Page history last edited by xinyi xie 9 years, 9 months ago

a) The pin number (line 10)✔

b) The "delay" lines, 21 and 23✔

c) A switch and/or resistor✔

a) Line 30, the pin assigned to ledPin, along with the other references to ledPin at 37, 50, and 54✔

const int buttonPin = 2;

const int led2 = 9; //the new LED

const int ledPin = 13;

int buttonState = 0;

void setup() {

pinMode(ledPin, OUTPUT);

pinMode(led2, OUTPUT);

pinMode(buttonPin, INPUT);

}

void loop(){

buttonState = digitalRead(buttonPin);

if (buttonState == HIGH) {

digitalWrite(ledPin, HIGH);

digitalWrite(led2, HIGH);

}

else {

digitalWrite(ledPin, LOW);

digitalWrite(led2, LOW);

}

✔

a) Nothing, the LED is already attached to pin 9✔

b) Change the +=5 and -=5 on fadeValue to something greater/less✔

c) Increase the delay on the lower and higher ends of the "brightness" spectrum, so that the the fading would appear to be more constant/linear✔

FRANKENLIGHT

a) 5 - 3.2 = 1.8 V

1.8 V / 30mA = 60 ohms

Minimum 60 ohm resistor

✔

a) Yes, this is a TV remote, so something has to interpret the button presses and send a signal to the transmitter✔

b) Yes, there are touch sensors on the buttons that change the resistance when pressed, resulting in a change in voltage✔

c) The device is normally powered by AA batteries, and there appears to be some change of power going on through a voltage regulator. I'm not sure what the remote normally works on, but my LED lights up at around 7 volts.✔

d) Information does not appear to be stored on the device✔

Video

https://www.youtube.com/watch?v=Blt3Rj2Q7-o&feature=youtu.be