Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Mega 2560 microcontroller, a Micro SD Card Module, two DC Motors with Encoders, an HC-SR04 Ultrasonic Sensor, and an Adafruit BNO055 STEMMA QT sensor. The document includes a component list, wiring details, and the embedded code used in the microcontroller.

Component List

Arduino Mega 2560

• Description: A microcontroller board based on the ATmega2560.
• Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0-A15, D0-D53, AREF, SDA, SCL

Micro SD Card Module

• Description: A module for interfacing with micro SD cards.
• Pins: cs, sck, mosi, miso, vcc, gnd

DC Motor with Encoder (Motor 1)

• Description: A DC motor with an integrated encoder for feedback.
• Pins: Encoder B, Encoder A, GND - Encoder, VCC - Encoder Power, Motor +ve, Motor -ve

DC Motor with Encoder (Motor 2)

• Description: A DC motor with an integrated encoder for feedback.
• Pins: Encoder B, Encoder A, GND - Encoder, VCC - Encoder Power, Motor +ve, Motor -ve

HC-SR04 Ultrasonic Sensor

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

Adafruit BNO055 STEMMA QT

• Description: An absolute orientation sensor.
• Pins: INT_3V, I2CADDR_3V, PS0_3V, PS1_3V, VCC, 3.3V, GND, SCL, SDA, RESET

Wiring Details

Arduino Mega 2560

• GND: Connected to GND of Adafruit BNO055, both DC Motors with Encoders, and HC-SR04 Ultrasonic Sensor.
• 5V: Connected to VCC of both DC Motors with Encoders, HC-SR04 Ultrasonic Sensor, and Micro SD Card Module.
• 3V3: Connected to 3.3V of Adafruit BNO055.
• D21/SCL: Connected to SCL of Adafruit BNO055.
• D20/SDA: Connected to SDA of Adafruit BNO055.
• D19/RX1: Connected to Encoder B of DC Motor with Encoder (Motor 2).
• D18/TX1: Connected to Encoder A of DC Motor with Encoder (Motor 2).
• D17 PWM/RX2: Connected to Encoder B of DC Motor with Encoder (Motor 1).
• D16 PWM/TX2: Connected to Encoder A of DC Motor with Encoder (Motor 1).
• D2 PWM: Connected to Motor -ve of DC Motor with Encoder (Motor 1).
• D3 PWM: Connected to Motor +ve of DC Motor with Encoder (Motor 1).
• D4 PWM: Connected to Motor -ve of DC Motor with Encoder (Motor 2).
• D5 PWM: Connected to Motor +ve of DC Motor with Encoder (Motor 2).
• D8 PWM: Connected to TRIG of HC-SR04 Ultrasonic Sensor.
• D9 PWM: Connected to ECHO of HC-SR04 Ultrasonic Sensor.
• D52: Connected to sck of Micro SD Card Module.
• D50: Connected to miso of Micro SD Card Module.
• D53: Connected to cs of Micro SD Card Module.
• D51: Connected to mosi of Micro SD Card Module.

Micro SD Card Module

• sck: Connected to D52 of Arduino Mega 2560.
• miso: Connected to D50 of Arduino Mega 2560.
• vcc: Connected to 5V of Arduino Mega 2560.
• gnd: Connected to GND of Arduino Mega 2560.
• cs: Connected to D53 of Arduino Mega 2560.
• mosi: Connected to D51 of Arduino Mega 2560.

DC Motor with Encoder (Motor 1)

• Encoder B: Connected to D17 PWM/RX2 of Arduino Mega 2560.
• Encoder A: Connected to D16 PWM/TX2 of Arduino Mega 2560.
• GND - Encoder: Connected to GND of Arduino Mega 2560.
• VCC - Encoder Power: Connected to 5V of Arduino Mega 2560.
• Motor +ve: Connected to D3 PWM of Arduino Mega 2560.
• Motor -ve: Connected to D2 PWM of Arduino Mega 2560.

DC Motor with Encoder (Motor 2)

• Encoder B: Connected to D19/RX1 of Arduino Mega 2560.
• Encoder A: Connected to D18/TX1 of Arduino Mega 2560.
• GND - Encoder: Connected to GND of Arduino Mega 2560.
• VCC - Encoder Power: Connected to 5V of Arduino Mega 2560.
• Motor +ve: Connected to D5 PWM of Arduino Mega 2560.
• Motor -ve: Connected to D4 PWM of Arduino Mega 2560.

HC-SR04 Ultrasonic Sensor

• VCC: Connected to 5V of Arduino Mega 2560.
• TRIG: Connected to D8 PWM of Arduino Mega 2560.
• ECHO: Connected to D9 PWM of Arduino Mega 2560.
• GND: Connected to GND of Arduino Mega 2560.

Adafruit BNO055 STEMMA QT

• GND: Connected to GND of Arduino Mega 2560.
• VCC: Connected to 5V of Arduino Mega 2560.
• 3.3V: Connected to 3V3 of Arduino Mega 2560.
• SCL: Connected to D21/SCL of Arduino Mega 2560.
• SDA: Connected to D20/SDA of Arduino Mega 2560.

Code

Arduino Mega 2560 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 Mega 2560. The setup() function is used to initialize any settings, and the loop() function contains the main code that runs repeatedly.