1: Ellipse
/*
* Week 11 Production (1)
*
* Inputs:
* - A1 - 10k potentiometer connected to 5V and GND
*
*/
int interval = 100;
int lastMessageTime = 0;
int potPin = A1;
void setup() {
Serial.begin(9600); // initialize serial communications
}
void loop() {
// read the input pin:
int potentiometer = analogRead(potPin);
// remap the pot value to 0-255:
int mappedPotValue = map(potentiometer, 0, 1023, 0, 255);
// print the value to the serial port.
Serial.println(mappedPotValue);
// slight delay to stabilize the ADC:
delay(1);
delay(100);
}
let port;
let connectBtn;
let baudrate = 9600;
let lastMessage = "";
let currX;
function setup() {
createCanvas(400, 400);
background(220);
port = createSerial();
let usedPorts = usedSerialPorts();
if (usedPorts.length > 0) {
port.open(usedPorts[0], baudrate);
}
connectBtn = createButton("Connect to Arduino");
connectBtn.position(80, height-60);
connectBtn.mousePressed(connectBtnClick);
currX = width/2;
}
function draw() {
background("white");
fill('grey');
circle(currX, height/2, 100);
let str = port.readUntil("\n");
if (str.length > 0) {
// console.log(str);
lastMessage = str;
}
// Display the most recent message
text("Last message: " + lastMessage, 10, height - 20);
// change button label based on connection status
if (!port.opened()) {
connectBtn.html("Connect to Arduino");
} else {
connectBtn.html("Disconnect");
}
// // Move shape based on received value
if (!lastMessage) {lastMessage = "127"}
currX = map(int(lastMessage), 0, 255, 0, width);
currX = floor(currX);
// console.log(currX);
}
function connectBtnClick() {
if (!port.opened()) {
port.open("Arduino", baudrate);
} else {
port.close();
}
}
2: LED Brightness
/*
* Week 11 Production (2)
*
* Outputs:
* - 5 - LED
*
*/
int ledPin = 5;
void setup() {
Serial.begin(9600);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(ledPin, OUTPUT);
// Blink them so we can check the wiring
digitalWrite(ledPin, HIGH);
delay(200);
digitalWrite(ledPin, LOW);
// start the handshake
while (Serial.available() <= 0) {
digitalWrite(LED_BUILTIN, HIGH); // on/blink while waiting for serial data
Serial.println("0,0"); // send a starting message
delay(300); // wait 1/3 second
digitalWrite(LED_BUILTIN, LOW);
delay(50);
}
}
void loop() {
// wait for data from p5 before doing something
while (Serial.available()) {
digitalWrite(LED_BUILTIN, HIGH); // led on while receiving data
int brightness = Serial.parseInt();
if (Serial.read() == '\n') {
analogWrite(ledPin, brightness);
}
}
digitalWrite(LED_BUILTIN, LOW);
}
let port;
let baudrate = 9600;
// Show button to connect / disconnect
let showConnectButton = false;
function setup() {
createCanvas(640, 480);
textSize(20);
// Create the serial port
port = createSerial();
// If the user previously connected, reopen the same port
let usedPorts = usedSerialPorts();
if (usedPorts.length > 0) {
port.open(usedPorts[0], baudrate);
}
// any other ports can be opened via a dialog
if (showConnectButton) {
connectBtn = createButton('Connect to Arduino');
connectBtn.position(80, 350);
connectBtn.mousePressed(setupSerial);
}
}
// Show serial port connection dialog in response to action
function setupSerial() {
if (!port.opened()) {
port.open('Arduino', baudrate);
} else {
port.close();
}
}
function draw() {
background('white');
fill('black');
if (showConnectButton) {
// changes button label based on connection status
if (!port.opened()) {
connectBtn.html('Connect to Arduino');
} else {
connectBtn.html('Disconnect');
}
}
if (!port.opened()) {
text("Disconnected - press space to connect", 20, 30);
} else {
text("Connected - press space to disconnect", 20, 30);
// // Transmit brightness based on mouse position
mappedX = floor(map(mouseX, 0, width, 0, 255));
console.log(mappedX);
let sendToArduino = mappedX + "\n";
port.write(sendToArduino);
}
}
function keyPressed() {
if (key == " ") {
setupSerial();
}
}
3: Wind Gravity
/*
* Week 11 Production (3)
*
* Inputs:
* - A1 - 10k potentiometer connected to 5V and GND
*
* Outputs:
* - 5 - LED
*
*/
int potPin = A1;
int ledPin = 5;
int interval = 100;
int lastMessageTime = 0;
void setup() {
Serial.begin(9600);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(potPin, INPUT);
pinMode(ledPin, OUTPUT);
// Blink them so we can check the wiring
digitalWrite(ledPin, HIGH);
delay(200);
digitalWrite(ledPin, LOW);
// start the handshake
while (Serial.available() <= 0) {
digitalWrite(LED_BUILTIN, HIGH); // on/blink while waiting for serial data
Serial.println("127"); // send a starting message
delay(300); // wait 1/3 second
digitalWrite(LED_BUILTIN, LOW);
delay(50);
}
}
void loop() {
// wait for data from p5 before doing something
while (Serial.available()) {
digitalWrite(LED_BUILTIN, HIGH); // led on while receiving data
// blink LED based on p5 data
int status = Serial.parseInt();
if (Serial.read() == '\n') {
digitalWrite(ledPin, status);
delay(10);
digitalWrite(ledPin, LOW);
}
if (lastMessageTime > interval) {
lastMessageTime = 0;
// send mapped potentiometer reading to p5
int potentiometer = analogRead(potPin);
int mappedPotValue = map(potentiometer, 0, 1023, 0, 255);
Serial.println(mappedPotValue);
// slight delay to stabilize the ADC:
delay(1);
}
else {
lastMessageTime++;
}
}
digitalWrite(LED_BUILTIN, LOW);
}
let velocity;
let gravity;
let position;
let acceleration;
let wind;
let drag = 0.99;
let mass = 50;
// // Arduino
let port;
let connectBtn;
let baudrate = 9600;
let lastMessage = "";
let showConnectButton = false;
function setup() {
createCanvas(620, 400);
noFill();
position = createVector(width/2, 0);
velocity = createVector(0,0);
acceleration = createVector(0,0);
gravity = createVector(0, 0.5*mass);
wind = createVector(0,0);
// // Arduino
port = createSerial();
let usedPorts = usedSerialPorts();
if (usedPorts.length > 0) {
port.open(usedPorts[0], baudrate);
}
if (showConnectButton) {
connectBtn = createButton('Connect to Arduino');
connectBtn.position(80, 300);
connectBtn.mousePressed(setupSerial);
}
}
function draw() {
background(255);
applyForce(wind);
applyForce(gravity);
velocity.add(acceleration);
velocity.mult(drag);
position.add(velocity);
acceleration.mult(0);
ellipse(position.x,position.y,mass,mass);
if (position.y > height-mass/2) {
velocity.y *= -0.9; // A little dampening when hitting the bottom
position.y = height-mass/2;
flashLight();
}
// // Arduino
if (showConnectButton) {
if (!port.opened()) {
connectBtn.html('Connect to Arduino');
} else {
connectBtn.html('Disconnect');
}
}
fill('black');
if (!port.opened()) {
text("Disconnected", 20, 30);
} else {
text("Connected", 20, 30);
}
let str = port.readUntil("\n");
if (str.length > 0) {
// console.log(str);
lastMessage = str;
}
// Display the most recent message
text("Last message: " + lastMessage, 10, height - 20);
// // Convert received value to wind.x value
mappedPot = map(int(lastMessage), 0, 255, -1, 1);
wind.x = mappedPot;
let windSpeed = "Wind speed: " + wind.x
text(windSpeed.substring(0,20), 10, height - 5);
fill('white');
}
function applyForce(force){
// Newton's 2nd law: F = M * A
// or A = F / M
let f = p5.Vector.div(force, mass);
acceleration.add(f);
}
function keyPressed(){
if (keyCode==LEFT_ARROW){
wind.x=-1;
}
if (keyCode==RIGHT_ARROW){
wind.x=1;
}
if (key==' '){
mass=random(15,80);
position.y=-mass;
velocity.mult(0);
port.write("0\n"); // reset light
}
}
// // Arduino
function setupSerial() {
if (!port.opened()) {
port.open('Arduino', baudrate);
} else {
port.close();
}
}
function flashLight() {
if (port.opened()) {
port.write("1\n");
// port.write("0\n");
}
}