Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, several resistors, LEDs, an ultrasonic sensor, an IR sensor, and a photocell (LDR). The circuit is designed to interface these components with the Arduino UNO for various sensing and output functionalities.

Component List

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

Resistor (220 Ohms)

• Description: A resistor with a resistance of 220 Ohms.
• Pins: pin1, pin2

Resistor (10k Ohms)

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

HC-SR04 Ultrasonic Sensor

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

IR Sensor

• Description: An infrared sensor used for object detection.
• Pins: out, gnd, vcc

Photocell (LDR)

• Description: A light-dependent resistor used for light sensing.
• Pins: pin 0, pin 1

LED: Two Pin (white)

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

LED: Two Pin (yellow)

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

Wiring Details

Arduino UNO

• 5V is connected to:

  • Photocell (LDR) pin 1
  • HC-SR04 Ultrasonic Sensor VCC
  • IR Sensor vcc

• A0 is connected to:

  • Photocell (LDR) pin 0
  • Resistor (10k Ohms) pin1

• GND is connected to:

  • LED: Two Pin (white) cathode
  • LED: Two Pin (yellow) cathode
  • LED: Two Pin (white) cathode
  • Resistor (10k Ohms) pin2
  • HC-SR04 Ultrasonic Sensor GND
  • IR Sensor gnd

• D9 is connected to:

  • Resistor (220 Ohms) pin1

• D10 is connected to:

  • Resistor (220 Ohms) pin1

• D11 is connected to:

  • Resistor (220 Ohms) pin2

• D8 is connected to:

  • HC-SR04 Ultrasonic Sensor ECHO

• D7 is connected to:

  • HC-SR04 Ultrasonic Sensor TRIG

• D2 is connected to:

  • IR Sensor out

Resistor (220 Ohms)

• pin1 is connected to:

  • Arduino UNO D9
  • Arduino UNO D10

• pin2 is connected to:

  • LED: Two Pin (white) anode
  • LED: Two Pin (yellow) anode
  • LED: Two Pin (white) anode

Resistor (10k Ohms)

• pin1 is connected to:

  • Photocell (LDR) pin 0
  • Arduino UNO A0

• pin2 is connected to:

  • LED: Two Pin (white) cathode
  • LED: Two Pin (yellow) cathode
  • LED: Two Pin (white) cathode
  • HC-SR04 Ultrasonic Sensor GND
  • IR Sensor gnd
  • Arduino UNO GND

HC-SR04 Ultrasonic Sensor

• VCC is connected to:

  • Arduino UNO 5V

• TRIG is connected to:

  • Arduino UNO D7

• ECHO is connected to:

  • Arduino UNO D8

• GND is connected to:

  • Resistor (10k Ohms) pin2

IR Sensor

• vcc is connected to:

  • Arduino UNO 5V

• gnd is connected to:

  • Resistor (10k Ohms) pin2

• out is connected to:

  • Arduino UNO D2

Photocell (LDR)

• pin 0 is connected to:

  • Resistor (10k Ohms) pin1
  • Arduino UNO A0

• pin 1 is connected to:

  • Arduino UNO 5V

LED: Two Pin (white)

• cathode is connected to:

  • Resistor (10k Ohms) pin2

• anode is connected to:

  • Resistor (220 Ohms) pin2

LED: Two Pin (yellow)

• cathode is connected to:

  • Resistor (10k Ohms) pin2

• anode is connected to:

  • Resistor (220 Ohms) pin2

Documented Code

Arduino UNO Code

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

}

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

}

This code is a basic template for the Arduino UNO, with empty setup and loop functions. The setup function runs once when the microcontroller is powered on or reset, and the loop function runs continuously after the setup function has completed.