Circuit Documentation

Summary

The circuit consists of an Arduino Mega 2560 microcontroller connected to four HC-SR04 Ultrasonic Distance Sensors. The Arduino Mega 2560 is responsible for controlling the sensors and processing the distance measurements. Each HC-SR04 sensor has a VCC, GND, TRIG, and ECHO pin. The VCC and GND pins of all sensors are connected to the 5V and GND pins of the Arduino, respectively, to provide power. The TRIG and ECHO pins of each sensor are connected to individual digital pins on the Arduino to trigger distance measurements and receive the echo signal.

Component List

Arduino Mega 2560

• Description: A microcontroller board based on the ATmega2560, with a wide range of digital and analog I/O pins.
• Purpose: Acts as the central processing unit for controlling the ultrasonic sensors and processing their signals.

HC-SR04 Ultrasonic Distance Sensor (Wokwi Compatible)

• Description: An ultrasonic distance measuring module that provides 2cm to 400cm non-contact measurement functionality.
• Purpose: Used to measure distances by emitting an ultrasonic wave and measuring the time taken for the echo to return.

Wiring Details

Arduino Mega 2560

• 5V: Connected to the VCC pins of all HC-SR04 sensors to provide power.
• GND: Connected to the GND pins of all HC-SR04 sensors to complete the power circuit.
• D2 PWM: Connected to the ECHO pin of the first HC-SR04 sensor.
• D3 PWM: Connected to the TRIG pin of the first HC-SR04 sensor.
• D4 PWM: Connected to the ECHO pin of the second HC-SR04 sensor.
• D5 PWM: Connected to the TRIG pin of the second HC-SR04 sensor.
• D6 PWM: Connected to the ECHO pin of the third HC-SR04 sensor.
• D7 PWM: Connected to the TRIG pin of the third HC-SR04 sensor.
• D10 PWM: Connected to the ECHO pin of the fourth HC-SR04 sensor.
• D11 PWM: Connected to the TRIG pin of the fourth HC-SR04 sensor.

HC-SR04 Ultrasonic Distance Sensor (Wokwi Compatible)

• VCC: Connected to the 5V pin of the Arduino Mega 2560.
• GND: Connected to the GND pin of the Arduino Mega 2560.
• TRIG: Connected to an individual PWM-capable digital pin on the Arduino Mega 2560 for triggering distance measurement.
• ECHO: Connected to an individual PWM-capable digital pin on the Arduino Mega 2560 to receive the echo signal.

Documented Code

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

}

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

}

Filename: sketch.ino

Description: This is the main code file for the Arduino Mega 2560. The setup() function is intended to initialize settings once the microcontroller powers up. The loop() function will contain the main logic that should run repeatedly. Currently, the code is a template and needs to be filled in with the logic for initializing the HC-SR04 sensors and handling the distance measurements.

Note: Additional code documentation will be required once the functional code is written.