Circuit Documentation

Summary

This circuit is designed to control a servo motor, a buzzer, and an OLED display using an Arduino UNO. The circuit also includes a touch sensor to trigger the servo motor and buzzer. The OLED display shows different messages based on the state of the touch sensor.

Component List

1. 9V Battery

   • Description: Provides power to the circuit.
   • Pins: +, -

2. Arduino UNO

   • Description: Microcontroller used to control the components.
   • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

3. Touch Sensor

   • Description: Detects touch input to trigger actions.
   • Pins: IO, VCC, GND

4. Buzzer

   • Description: Emits sound when activated.
   • Pins: PIN, GND

5. OLED 1.3" Display

   • Description: Displays messages and images.
   • Pins: GND, VCC, SCL, SDA

6. Rocker Switch

   • Description: Controls the power supply to the Arduino.
   • Pins: 1, 2

7. Servo Motor

   • Description: Rotates to a specific angle when activated.
   • Pins: GND, VCC, PWM

Wiring Details

9V Battery

• + connected to Rocker Switch pin 1
• - connected to Arduino UNO pin GND

Arduino UNO

• 5V connected to:

  • Servo Motor pin VCC
  • Touch Sensor pin VCC
  • OLED 1.3" Display pin VCC

• GND connected to:

  • Servo Motor pin GND
  • Touch Sensor pin GND
  • Buzzer pin GND
  • OLED 1.3" Display pin GND
  • 9V Battery pin -

• Vin connected to Rocker Switch pin 2

• A4 connected to OLED 1.3" Display pin SDA

• A5 connected to OLED 1.3" Display pin SCL

• D9 connected to Servo Motor pin PWM

• D3 connected to Buzzer pin PIN

• D2 connected to Touch Sensor pin IO

Touch Sensor

• VCC connected to Arduino UNO pin 5V
• GND connected to Arduino UNO pin GND
• IO connected to Arduino UNO pin D2

Buzzer

• PIN connected to Arduino UNO pin D3
• GND connected to Arduino UNO pin GND

OLED 1.3" Display

• VCC connected to Arduino UNO pin 5V
• GND connected to Arduino UNO pin GND
• SCL connected to Arduino UNO pin A5
• SDA connected to Arduino UNO pin A4

Rocker Switch

• 1 connected to 9V Battery pin +
• 2 connected to Arduino UNO pin Vin

Servo Motor

• VCC connected to Arduino UNO pin 5V
• GND connected to Arduino UNO pin GND
• PWM connected to Arduino UNO pin D9

Code Documentation

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH1106.h>
#include <Servo.h>

// OLED display setup
#define OLED_RESET -1
Adafruit_SH1106 display(OLED_RESET);

// Servo setup
Servo myServo;

const int touchPin = 2;
const int buzzerPin = 3;
const int servoPin = 9;

// Lockout variables
bool touchDetected = false;
unsigned long touchStartTime = 0;
const unsigned long treatDisplayDuration = 300;  // 300 ms for "Giving Treats"
const unsigned long waitBeforeReady = 2000;      // 2 seconds waiting phase

// OBECK CAT logo image for OLED
const unsigned char cat_bmp[] PROGMEM = {
  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff,
  0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0xff, 0xff, 0xff, 0xff,
  0xff, 0xff, 0xc0, 0xff, 0xff, 0xc0, 0x00, 0xff, 0xff, 0xc0, 0xff, 0xfe, 0x1f, 0xfc, 0x1f, 0xff,
  0xc0, 0xff, 0xf8, 0xe0, 0x01, 0xc7, 0xff, 0xc0, 0xff, 0xf3, 0x00, 0x00, 0x23, 0xff, 0xc0, 0xff,
  0xe0, 0x00, 0x00, 0x01, 0xff, 0xc0, 0xff, 0xc0, 0x00, 0x00, 0x00, 0xff, 0xc0, 0xff, 0x80, 0x00,
  0x00, 0x00, 0x7f, 0xc0, 0xff, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xc0, 0xfe, 0x00, 0xc0, 0x00, 0xc0,
  0x1f, 0xc0, 0xfe, 0x01, 0xe0, 0x01, 0xe0, 0x1f, 0xc0, 0xfc, 0x04, 0x77, 0xfb, 0x88, 0x0f, 0xc0,
  0xfc, 0x0e, 0x3f, 0xff, 0x1c, 0x07, 0xc0, 0xf8, 0x0f, 0x1c, 0x0e, 0x3c, 0x07, 0xc0, 0xf8, 0x4b,
  0x80, 0x00, 0x74, 0x87, 0xc0, 0xf8, 0x49, 0xc1, 0x20, 0xe4, 0x83, 0xc0, 0xf0, 0xd8, 0xfd, 0x2f,
  0xc4, 0xc3, 0xc0, 0xf8, 0xd9, 0xfd, 0x2f, 0xe6, 0xc7, 0xc0, 0xf8, 0x1f, 0xfd, 0x2f, 0xf6, 0x07,
  0xc0, 0xf8, 0x1f, 0xff, 0xff, 0xfe, 0x07, 0xc0, 0xf8, 0x0f, 0xff, 0xff, 0xfc, 0x87, 0xc0, 0xf0,
  0x8f, 0xff, 0xff, 0xfc, 0x03, 0xc0, 0xe4, 0x0f, 0xff, 0xff, 0xfc, 0x09, 0xc0, 0xec, 0