Electronics Design

For this week, we used an ocsilloscope to test the operations of an Arduino Uno. We tested its 5v and 3.3v power rails, as well as its pin outputs.

5V Power

3V3 Power

High Ouptut

Low Output

Switch Output

For this one, we used a while loop to toggle a pin on and off

PWM Output

For this pin, we used analogWrite to output a PWM signal with 95.7% duty cycle using a value of 244.

Source Code

This is the code we used to test the Arduino Uno

void setup() {
  // put your setup code here, to run once:
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(3, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(2, HIGH);
  digitalWrite(7, LOW);

  while(true){
    digitalWrite(4, HIGH);
    digitalWrite(4, LOW);
    analogWrite(3, 244);
  }
}