Circuit Documentation

Summary

The circuit is designed around the Arduino Mega 2560 microcontroller, which controls various peripherals including LEDs, a buzzer, and a micro servo. The LEDs are connected to the digital pins with PWM capability for potential brightness control, and each LED is paired with a resistor to limit the current. The micro servo is powered by the 5V supply from the Arduino and controlled via a PWM signal. The buzzer is also connected to a PWM pin for sound generation. The ground connections are shared among the components, establishing a common reference point for the circuit.

Component List

Arduino Mega 2560

• Microcontroller board based on the ATmega2560
• It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.

LED: Two Pin (green)

• A green light-emitting diode (LED) for visual signaling
• Requires current-limiting resistor to prevent damage

LED: Two Pin (red)

• A red light-emitting diode (LED) for visual signaling
• Requires current-limiting resistor to prevent damage

LED: Two Pin (yellow)

• A yellow light-emitting diode (LED) for visual signaling
• Requires current-limiting resistor to prevent damage

Resistor (220 Ohms)

• Three resistors with a resistance of 220 Ohms each
• Used to limit the current through the LEDs

Micro servo 9G

• A small servo motor capable of precise position control
• Operates on +5V and receives control signals via PWM

Buzzer

• An electronic buzzer for audible signaling
• Can be driven by a PWM signal to generate different tones

Wiring Details

Arduino Mega 2560

• 5V: Connected to the +5V pins of the micro servo and the anode side of the resistors for the LEDs
• GND: Connected to the GND pins of the buzzer and micro servo, and the cathode side of the LEDs
• D13 PWM: Connected to the anode of the green LED (through a resistor)
• D12 PWM: Connected to the anode of the yellow LED (through a resistor)
• D11 PWM: Connected to the anode of the red LED (through a resistor)
• D10 PWM: Connected to the PWM pin of the micro servo
• D8 PWM: Connected to the PIN pin of the buzzer

LED: Two Pin (green)

• Anode: Connected to D13 PWM on the Arduino Mega 2560 (through a 220 Ohm resistor)
• Cathode: Connected to GND

LED: Two Pin (red)

• Anode: Connected to D11 PWM on the Arduino Mega 2560 (through a 220 Ohm resistor)
• Cathode: Connected to GND

LED: Two Pin (yellow)

• Anode: Connected to D12 PWM on the Arduino Mega 2560 (through a 220 Ohm resistor)
• Cathode: Connected to GND

Resistor (220 Ohms)

• One side (pin1): Connected to the cathode of the corresponding LED
• Other side (pin2): Connected to the 5V supply from the Arduino Mega 2560

Micro servo 9G

• +5V: Connected to the 5V output from the Arduino Mega 2560
• GND: Connected to GND on the Arduino Mega 2560
• PWM: Connected to D10 PWM on the Arduino Mega 2560

Buzzer

• PIN: Connected to D8 PWM on the Arduino Mega 2560
• GND: Connected to GND on the Arduino Mega 2560

Documented Code

Arduino Mega 2560 - sketch.ino

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

}

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

}

Arduino Mega 2560 - documentation.txt

(No additional documentation provided for the code)