Circuit Documentation

Summary of the Circuit

This circuit is designed around an Arduino UNO microcontroller, which serves as the central processing unit. The circuit includes an infrared (IR) sensor for detecting objects or movements, a buzzer for audible alerts, an LED for visual indication, and a 9V battery to power the Arduino UNO. The circuit also incorporates resistors for current limiting purposes.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

Buzzer

• An electromechanical component that produces sound
• Typically used for alarms or user feedback

IR Sensor

• A sensor that detects infrared light, often used in proximity or motion detection

9V Battery

• A standard 9-volt battery used to provide power to the circuit

LED: Two Pin (red)

• A red light-emitting diode used as an indicator light

Resistor (5 Ohms)

• A component that provides resistance in the circuit, used to limit current

Wiring Details

Arduino UNO

• 5V connected to the VCC of the IR sensor
• GND connected to:
  • The GND of the IR sensor
  • The GND of the buzzer
  • The GND of the 9V battery
  • The cathode of the LED through a resistor
• Vin connected to the positive terminal of the 9V battery
• D4 connected to the output of the IR sensor
• D2 connected to one end of a resistor

Buzzer

• PIN connected to the other end of a resistor
• GND connected to the GND of the Arduino UNO

IR Sensor

• VCC connected to the 5V of the Arduino UNO
• GND connected to the GND of the Arduino UNO
• OUT connected to the D4 of the Arduino UNO

9V Battery

• + connected to the Vin of the Arduino UNO
• - connected to the GND of the Arduino UNO

LED: Two Pin (red)

• Anode connected to one end of a resistor
• Cathode connected to the GND of the Arduino UNO

Resistor (5 Ohms)

• One resistor is connected between the D2 of the Arduino UNO and the PIN of the buzzer
• Another resistor is connected between the anode of the LED and the GND of the 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 Notes (documentation.txt)

No additional code documentation was provided.