Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to control a pair of DC motors using an L298N motor driver, two KY-033 line tracking sensors, and a 74HC04 hex inverter. The circuit is powered by two 18650 Li-ion batteries. The document includes a component list, wiring details, and code documentation.

Component List

1. 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

2. KY-033 Line Tracking Sensor (2 units)

   • Description: A sensor module used for line tracking in robotics.
   • Pins: A0, D0, GND, VCC

3. 74HC04

   • Description: A hex inverter IC used to invert the logic levels of input signals.
   • Pins: A1, Y1, A2, Y2, A3, Y3, GND, VCC, A6, Y6, A5, Y5, A4, Y4

4. 18650 Li-ion Battery x 2

   • Description: A pair of rechargeable lithium-ion batteries used to power the circuit.
   • Pins: +, -

5. Gearmotor DC Wheels Left

   • Description: A DC motor with attached wheels for the left side of a robot.
   • Pins: PIN1, PIN2

6. Gearmotor DC Wheels Right

   • Description: A DC motor with attached wheels for the right side of a robot.
   • Pins: PIN1, PIN2

Wiring Details

L298N DC Motor Driver

• OUT1 connected to PIN2 of Gearmotor DC Wheels Right
• OUT2 connected to PIN1 of Gearmotor DC Wheels Right
• OUT3 connected to PIN2 of Gearmotor DC Wheels Left
• OUT4 connected to PIN1 of Gearmotor DC Wheels Left
• 12V connected to + of 18650 Li-ion Battery x 2
• GND connected to - of 18650 Li-ion Battery x 2, GND of KY-033 Line Tracking Sensor (both units), and GND of 74HC04
• 5V connected to VCC of KY-033 Line Tracking Sensor (both units) and VCC of 74HC04
• IN1 connected to Y2 of 74HC04
• IN2 connected to A2 of 74HC04 and D0 of KY-033 Line Tracking Sensor (second unit)
• IN3 connected to Y1 of 74HC04
• IN4 connected to A1 of 74HC04 and D0 of KY-033 Line Tracking Sensor (first unit)

KY-033 Line Tracking Sensor (First Unit)

• GND connected to GND of L298N DC Motor Driver
• VCC connected to 5V of L298N DC Motor Driver
• D0 connected to A1 of 74HC04
• A0 not connected

KY-033 Line Tracking Sensor (Second Unit)

• GND connected to GND of L298N DC Motor Driver
• VCC connected to 5V of L298N DC Motor Driver
• D0 connected to A2 of 74HC04
• A0 not connected

74HC04

• GND connected to GND of L298N DC Motor Driver
• VCC connected to 5V of L298N DC Motor Driver
• Y2 connected to IN1 of L298N DC Motor Driver
• A2 connected to IN2 of L298N DC Motor Driver and D0 of KY-033 Line Tracking Sensor (second unit)
• Y1 connected to IN3 of L298N DC Motor Driver
• A1 connected to IN4 of L298N DC Motor Driver and D0 of KY-033 Line Tracking Sensor (first unit)

18650 Li-ion Battery x 2

• + connected to 12V of L298N DC Motor Driver
• - connected to GND of L298N DC Motor Driver

Gearmotor DC Wheels Left

• PIN1 connected to OUT4 of L298N DC Motor Driver
• PIN2 connected to OUT3 of L298N DC Motor Driver

Gearmotor DC Wheels Right

• PIN1 connected to OUT2 of L298N DC Motor Driver
• PIN2 connected to OUT1 of L298N DC Motor Driver

Code Documentation

No code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code documentation. The detailed wiring information ensures that each component is correctly connected, facilitating the assembly and troubleshooting of the circuit.