Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, three LEDs (red, yellow, and green), an HC-SR04 Ultrasonic Sensor, and a Piezo Speaker. The Arduino UNO controls the LEDs and the Piezo Speaker, and it also interfaces with the Ultrasonic Sensor to measure distance.

Component List

1. Arduino UNO

   • Description: A microcontroller board based on the ATmega328P.
   • 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

2. LED: Two Pin (red)

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

3. LED: Two Pin (yellow)

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

4. LED: Two Pin (green)

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

5. HC-SR04 Ultrasonic Sensor

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

6. Piezo Speaker

   • Description: A piezoelectric speaker used for sound output.
   • Pins: pin1, pin2

Wiring Details

Arduino UNO

• 5V: Connected to VCC of HC-SR04 Ultrasonic Sensor
• GND: Connected to cathode of red LED, yellow LED, green LED, pin1 of Piezo Speaker, and GND of HC-SR04 Ultrasonic Sensor
• D9: Connected to anode of green LED
• D10: Connected to anode of yellow LED
• D11: Connected to anode of red LED
• D6: Connected to TRIG of HC-SR04 Ultrasonic Sensor
• D5: Connected to ECHO of HC-SR04 Ultrasonic Sensor
• D2: Connected to pin2 of Piezo Speaker

LED: Two Pin (red)

• anode: Connected to D11 of Arduino UNO
• cathode: Connected to GND of Arduino UNO

LED: Two Pin (yellow)

• anode: Connected to D10 of Arduino UNO
• cathode: Connected to GND of Arduino UNO

LED: Two Pin (green)

• anode: Connected to D9 of Arduino UNO
• cathode: Connected to GND of Arduino UNO

HC-SR04 Ultrasonic Sensor

• VCC: Connected to 5V of Arduino UNO
• TRIG: Connected to D6 of Arduino UNO
• ECHO: Connected to D5 of Arduino UNO
• GND: Connected to GND of Arduino UNO

Piezo Speaker

• pin1: Connected to GND of Arduino UNO
• pin2: Connected to D2 of Arduino UNO

Documented Code

Arduino UNO 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)

This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino UNO.