Circuit Documentation
Summary
This circuit is designed to control two DC Mini Metal Gear Motors using an L298N DC motor driver, powered by a 7.4V battery and regulated by an XL4015 5A DC Buck Step-down converter. The control logic is managed by an Arduino Nano microcontroller.
Component List
L298N DC Motor Driver
- Description: A dual H-Bridge motor driver that allows control of the speed and direction of two DC motors.
- 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
7.4V Battery
- Description: A 7.4V battery used to power the circuit.
- Pins: +, -
XL4015 5A DC Buck Step-down
- Description: A DC-DC buck converter that steps down the 7.4V battery voltage to a lower voltage suitable for the motor driver and microcontroller.
- Pins: Output +, Output -, Input +, Input -
Arduino Nano
- Description: A small, complete, and breadboard-friendly microcontroller board based on the ATmega328P.
- Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK
DC Mini Metal Gear Motor (Motor 1)
- Description: A small DC motor with metal gears for increased torque.
- Pins: IN1, IN2
DC Mini Metal Gear Motor (Motor 2)
- Description: A small DC motor with metal gears for increased torque.
- Pins: IN1, IN2
Wiring Details
L298N DC Motor Driver
- OUT1 connected to IN2 of Motor 2
- OUT2 connected to IN1 of Motor 2
- 12V connected to Output + of XL4015 and VIN of Arduino Nano
- GND connected to Output - of XL4015 and GND of Arduino Nano
- OUT3 connected to IN2 of Motor 1
- OUT4 connected to IN1 of Motor 1
- ENA connected to D6 of Arduino Nano
- IN1 connected to D2 of Arduino Nano
- IN2 connected to D3 of Arduino Nano
- IN3 connected to D4 of Arduino Nano
- IN4 connected to D5 of Arduino Nano
- ENB connected to D7 of Arduino Nano
7.4V Battery
- + connected to Input + of XL4015
- - connected to Input - of XL4015
XL4015 5A DC Buck Step-down
- Output + connected to 12V of L298N and VIN of Arduino Nano
- Output - connected to GND of L298N and GND of Arduino Nano
- Input + connected to + of 7.4V Battery
- Input - connected to - of 7.4V Battery
Arduino Nano
- VIN connected to Output + of XL4015
- GND connected to Output - of XL4015
- D2 connected to IN1 of L298N
- D3 connected to IN2 of L298N
- D4 connected to IN3 of L298N
- D5 connected to IN4 of L298N
- D6 connected to ENA of L298N
- D7 connected to ENB of L298N
DC Mini Metal Gear Motor (Motor 1)
- IN1 connected to OUT4 of L298N
- IN2 connected to OUT3 of L298N
DC Mini Metal Gear Motor (Motor 2)
- IN1 connected to OUT2 of L298N
- IN2 connected to OUT1 of L298N
Documented Code
Arduino Nano Code (sketch.ino)
void setup() {
}
void loop() {
}
Additional Documentation (documentation.txt)
This documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the Arduino Nano microcontroller.