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11. Input devices

This week I worked on defining my final project idea and started to getting used to the documentation process.

Research

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Code Example

Use the three backticks to separate code.

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

Video

From Vimeo

Sound Waves from George Gally (Radarboy) on Vimeo.

From Youtube

3D Models

https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/testing-a-pir

  • PIR sensor tester */

int ledPin = 13; // choose the pin for the LED int inputPin = 2; // choose the input pin (for PIR sensor) int pirState = LOW; // we start, assuming no motion detected int val = 0; // variable for reading the pin status

void setup() { pinMode(ledPin, OUTPUT); // declare LED as output pinMode(inputPin, INPUT); // declare sensor as input

Serial.begin(9600); }

void loop(){ val = digitalRead(inputPin); // read input value if (val == HIGH) { // check if the input is HIGH digitalWrite(ledPin, HIGH); // turn LED ON if (pirState == LOW) { // we have just turned on Serial.println(“Motion detected!”); // We only want to print on the output change, not state pirState = HIGH; } } else { digitalWrite(ledPin, LOW); // turn LED OFF if (pirState == HIGH){ // we have just turned of Serial.println(“Motion ended!”); // We only want to print on the output change, not state pirState = LOW; } } }

https://www.youtube.com/watch?v=u4bdmXqppB8&ab_channel=educ8s.tv


Last update: June 12, 2022