In this recitation, I chose to use a photosensitive resistor to control the brightness of the picture, but the effect was not obvious. The pictures are of Hobbits.
Code
PImage img;
void setup() {
size(600, 404);
PImage photo;
img = loadImage("hobbit.jpg");
tint(0,0,255,150);
point(mouseX,mouseY);
}
void draw() {
for (int i=0; i<100; i++) {
int size = int( random(1, 20) );
int x = int( random(img.width) );
int y = int( random(img.height) );
// get the pixel color
color c = img.get(x, y);
// draw a circle with the color
fill(c);
ellipse(x, y, size, size);
}
}
void mousePressed() {
point(mouseX,mouseY);
}
int photocellPin = 2; // 光敏电阻连接模拟端口【A2】
int ledPin = 13; // LED灯连接数字端口【D13】
int val = 0; // 存储光敏电阻值的变量
void setup() {
// 打开并设置串口
Serial.begin(9600);
// 设置数字端口ledPin用于输出
}
void loop() {
val = analogRead(photocellPin); // 读取光敏电阻的值
//在串口输出val的值 用于调试时使用
Serial.println(val);
if(val<=112){
digitalWrite(ledPin, HIGH);
}else{
digitalWrite(ledPin, LOW);
}
}
This article uses light and shadow to realize human interaction, which inspires me how to use multimedia in the project, such as using sound as a medium to trigger the interaction between the user and the machine.