Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano microcontroller, various LEDs, a piezo speaker, an ultrasonic sensor, a pushbutton, resistors, and a 9V battery. The circuit is designed to interface with these components to perform various functions, as defined by the embedded code.

Component List

Arduino Nano

• Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
• Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

LED: Two Pin (green)

• Description: A green LED with two pins.
• Pins: cathode, anode

LED: Two Pin (red)

• Description: A red LED with two pins.
• Pins: cathode, anode

LED: Two Pin (blue)

• Description: A blue LED with two pins.
• Pins: cathode, anode

Piezo Speaker

• Description: A piezoelectric speaker.
• Pins: pin1, pin2

HC-SR04 Ultrasonic Sensor

• Description: An ultrasonic sensor for distance measurement.
• Pins: VCC, TRIG, ECHO, GND

Pushbutton

• Description: A simple pushbutton switch.
• Pins: Pin 3 (out), Pin 4 (out), Pin 1 (in), Pin 2 (in)

9V Battery

• Description: A 9V battery for power supply.
• Pins: -, +

Resistor (10k Ohms)

• Description: A resistor with a resistance of 10k Ohms.
• Pins: pin1, pin2

Resistor (100 Ohms)

• Description: A resistor with a resistance of 100 Ohms.
• Pins: pin1, pin2

Resistor (150 Ohms)

• Description: A resistor with a resistance of 150 Ohms.
• Pins: pin1, pin2

Wiring Details

Arduino Nano

• D8: Connected to the cathode of the red LED.
• D7: Connected to the cathode of the blue LED.
• D6: Connected to the cathode of the green LED.
• D5: Connected to pin2 of the piezo speaker.
• D4: Connected to Pin 1 (in) of the pushbutton.
• D3: Connected to the ECHO pin of the HC-SR04 Ultrasonic Sensor.
• D2: Connected to the TRIG pin of the HC-SR04 Ultrasonic Sensor.
• 5V: Connected to pin2 of the 10k Ohms resistor and the VCC pin of the HC-SR04 Ultrasonic Sensor.
• GND: Connected to pin1 of the 150 Ohms resistors, the GND pin of the HC-SR04 Ultrasonic Sensor, Pin 4 (out) of the pushbutton, and the negative terminal of the 9V battery.
• VIN: Connected to the positive terminal of the 9V battery.

LED: Two Pin (green)

• cathode: Connected to D6 of the Arduino Nano.
• anode: Connected to pin2 of a 150 Ohms resistor.

LED: Two Pin (red)

• cathode: Connected to D8 of the Arduino Nano.
• anode: Connected to pin2 of a 150 Ohms resistor.

LED: Two Pin (blue)

• cathode: Connected to D7 of the Arduino Nano.
• anode: Connected to pin2 of a 150 Ohms resistor.

Piezo Speaker

• pin1: Connected to pin2 of a 100 Ohms resistor.
• pin2: Connected to D5 of the Arduino Nano.

HC-SR04 Ultrasonic Sensor

• VCC: Connected to pin2 of the 10k Ohms resistor and the 5V pin of the Arduino Nano.
• TRIG: Connected to D2 of the Arduino Nano.
• ECHO: Connected to D3 of the Arduino Nano.
• GND: Connected to pin1 of the 150 Ohms resistors and the GND pin of the Arduino Nano.

Pushbutton

• Pin 1 (in): Connected to D4 of the Arduino Nano.
• Pin 2 (in): Connected to pin1 of the 10k Ohms resistor.
• Pin 3 (out): Not connected.
• Pin 4 (out): Connected to the GND pin of the Arduino Nano.

9V Battery

• -: Connected to the GND pin of the Arduino Nano.
• +: Connected to the VIN pin of the Arduino Nano.

Resistor (10k Ohms)

• pin1: Connected to Pin 2 (in) of the pushbutton.
• pin2: Connected to the 5V pin of the Arduino Nano and the VCC pin of the HC-SR04 Ultrasonic Sensor.

Resistor (100 Ohms)

• pin1: Not connected.
• pin2: Connected to pin1 of the piezo speaker.

Resistor (150 Ohms)

• pin1: Connected to the GND pin of the Arduino Nano.
• pin2: Connected to the anode of the green LED, the anode of the red LED, and the anode of the blue LED.

Documented Code

Arduino Nano Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Additional Documentation (documentation.txt)