Circuit Documentation

Summary

This circuit is designed to control two DC motors using an L298N DC motor driver, interfaced with a SparkFun Pro Micro microcontroller. The circuit also includes an HC-SR04 Ultrasonic Sensor for distance measurement, a Bluetooth module HM-10 for wireless communication, and an MPU-6050 sensor for motion tracking. Power is supplied by a 5V battery and a separate battery case, presumably for the motor driver. The circuit's ground connections are shared among several components, establishing a common ground.

Component List

L298N DC Motor Driver

• Description: A motor driver capable of driving a pair of DC motors or a stepper motor.
• Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

My Battery Case

• Description: A battery case to provide power to the circuit.
• Pins: +, -

HC-SR04 Ultrasonic Sensor

• Description: An ultrasonic sensor used for measuring distances via sonar.
• Pins: VCC, TRIG, ECHO, GND

DC Motor

• Description: An electric motor that runs on direct current electricity.
• Pins: pin 1, pin 2

SparkFun Pro Micro

• Description: A microcontroller board based on the ATmega32U4.
• Pins: RAW, GND, RESET, VCC, A3, A2, A1, A0, SCK, MISO, MOSI, D10, D9, D8, D7, D6, D5, D4, D3, D2, RXI, TXO

5V Battery

• Description: A power source providing a 5V output.
• Pins: positive, negative

Bluetooth Module HM-10

• Description: A Bluetooth 4.0 module for wireless communication.
• Pins: BRK, RX, TX, GND, VCC, State

MPU-6050

• Description: A motion tracking device with a 3-axis gyroscope and a 3-axis accelerometer.
• Pins: VCC, GND, SCL, SDA, XDA, XCL, AD0, INT

Wiring Details

L298N DC Motor Driver

• 5V connected to SparkFun Pro Micro VCC
• GND connected to common ground
• IN1 connected to SparkFun Pro Micro D2
• IN2 connected to SparkFun Pro Micro D3
• IN3 connected to SparkFun Pro Micro D4
• IN4 connected to SparkFun Pro Micro D5
• ENA connected to SparkFun Pro Micro D6
• ENB connected to SparkFun Pro Micro D9
• OUT1 connected to DC Motor (Instance 1) pin 1
• OUT2 connected to DC Motor (Instance 1) pin 2
• OUT3 connected to DC Motor (Instance 2) pin 1
• OUT4 connected to DC Motor (Instance 2) pin 2
• 12V connected to My Battery Case +

My Battery Case

• • connected to L298N DC Motor Driver 12V
• • connected to common ground

HC-SR04 Ultrasonic Sensor

• VCC connected to common 5V
• GND connected to common ground

DC Motor (Instance 1)

• pin 1 connected to L298N DC Motor Driver OUT1
• pin 2 connected to L298N DC Motor Driver OUT2

DC Motor (Instance 2)

• pin 1 connected to L298N DC Motor Driver OUT3
• pin 2 connected to L298N DC Motor Driver OUT4

SparkFun Pro Micro

• GND connected to common ground
• VCC connected to common 5V
• D2 connected to L298N DC Motor Driver IN1
• D3 connected to L298N DC Motor Driver IN2
• D4 connected to L298N DC Motor Driver IN3
• D5 connected to L298N DC Motor Driver IN4
• D6 connected to L298N DC Motor Driver ENA
• D9 connected to L298N DC Motor Driver ENB
• A1 connected to MPU-6050 SDA
• A0 connected to MPU-6050 SCL

5V Battery

• positive connected to common 5V
• negative connected to common ground

Bluetooth Module HM-10

• VCC connected to common 5V
• GND connected to common ground

MPU-6050

• VCC connected to common 5V
• GND connected to common ground
• SCL connected to SparkFun Pro Micro A0
• SDA connected to SparkFun Pro Micro A1

Documented Code

No code was provided for the microcontroller. The documentation of the code would typically include a description of the functionality, setup, and main loop, along with comments explaining the purpose of each function and variable. Since no code is available, this section cannot be completed.