Demo 2: Omisa Jinsi

For the second demo, I wanted to create a small pinball machine with two switches to control two servos that act as “flaps”

Brainstorming

For brainstorming, I drew what I visualized for the project, and estimated the dimensions.

After visualizing the “pinball machine”, I CADed the files on Solidworks. Below are the files for the parts and assembly files.

Implementation

After lasercutting the individual pieces, I spent an hour filing the holes in the top, as I underestimated the size of the servos. I then glued all the parts together and screwed the servos into the top.

I then built the circuit for the servos and the switches for each servo.

The circuit board, servos, and the structure together created this result:

Obviously, the ball did not travel as well up as I wanted it to go. This was partially due to the steep angle of the structure and also due to the lack of speed of the servos. In the future, I would want to make the structure have a less steep incline.

Code

#include <Servo.h&gt;
const int buttonPin1 = 11;     // the number of the pushbutton pin
const int buttonPin2 = 12;     // the number of the pushbutton pin


// variables will change:
int buttonState1 = 0;         // variable for reading the pushbutton status
int buttonState2 = 0;         // variable for reading the pushbutton status

Servo servo1;
Servo servo2; 

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin1, INPUT);
  pinMode(buttonPin2,INPUT);
  servo1.attach(9);
  servo2.attach(10);
}

void loop() {
  // read the state of the pushbutton value:
  buttonState1 = digitalRead(buttonPin1);
  buttonState2 = digitalRead(buttonPin2);

  if (buttonState1 == HIGH) {
    servo1.write(150);
  } else {
    // turn LED off:
    servo1.write(80);
  }
  if (buttonState2 == HIGH){
    servo2.write(110);
  }
  else{
    servo2.write(180);
  }
  }