Everything is explain in my humourous youtube video. I didn't use a rasberry pi for this project because I don't own any rasberry pi unfortunately.

For one of my future video, I want to do a punching bag that block you attacks and that throws back a punch (It's kinda funny and it looks fun to build). To make this project possible, I need a rasberry pi to use computer vision in my project.

Unfortunately, I am a full time student and I don't have a job so I hope I'll win a rasberry pi 4 since it has much higher performance that the board I used for this video.

Here's the code:

#define PB_PIN 2
#define J_PIN 21
#define BUTTON 3
#define MIN_DELAY 400


int buttonState = 0;
boolean PB_Shot = false;


void setup() 
{
  pinMode(PB_PIN, OUTPUT);
  pinMode(J_PIN, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
}


void loop() {
  buttonState = digitalRead(BUTTON);
  
  if (buttonState == HIGH) {
    if(PB_Shot){
      PB_Shot = false; 
      shootJelly();
    }else{
      PB_Shot = true; 
      shootPeanutButter();
    }
    delay(MIN_DELAY*1.5);
  }
}


void shootPeanutButter(){
  digitalWrite(PB_PIN, HIGH);
  delay(MIN_DELAY);
  digitalWrite(PB_PIN, LOW);
}


void shootJelly(){
  digitalWrite(J_PIN, HIGH);
  delay(MIN_DELAY);
  digitalWrite(J_PIN, LOW);
}

and the schematics looks like that:

Thank you for your time,

Jeff Robin