Robot Smart Car Kits

Arduino Interfacing

Layout and Wiring

PWM Guide

• ESP32 Tutorial
• Motor Control Pulse Width Modulator (MCPWM)
• ESP32 with DC Motor and L298N Motor Driver – Control Speed and Direction

Encoder References

• How to use encoders (Optical, Hall Effect, Quadrature)
• Control DC Motor With Encoder Optical Sensor Module FC-03
• Control DC Motor With Encoder Optical Sensor Module FC-03

Reference

• How To Assemble 4WD Robot Smart Car Chassis Kits
• Assemble a 4WD Robot Smart Car Chassis Kit
• Robot Car Starter Kit Lesson 1: Install UNO R3 Board and Motors on Chassis
• How to use the L298N Motor Driver with Arduino
• How to control a DC motor with L298N driver and Arduino Uno

Parts

• Dual Shaft Geared Motor Gearmotor DC 3-12V
• L298N Stepper Motor Driver Controller Board Dual H Bridge Module
• Speed Encoder 20 Lattice TT Motor Wheel
• HC-020K Double Speed Measuring Sensor Module with Photoelectric Encoders Kit

Using an ESP32 to control a Smart Car

• We will have four motors. Each motor will require three pins. Two to control direction and one to control the speed.

Forward Turn Right

• Left Front Motor: Forward at normal speed.
• Left Rear Motor: Forward at normal speed.
• Right Front Motor: Forward at reduced speed.
• Right Rear Motor: Forward at reduced speed.

Forward Turn Left

• Left Front Motor: Forward at reduced speed.
• Left Rear Motor: Forward at reduced speed.
• Right Front Motor: Forward at normal speed.
• Right Rear Motor: Forward at normal speed.

Rotate Right (The car rotates in place clockwise.)

• Left Front Motor: Forward at normal speed.
• Left Rear Motor: Forward at normal speed.
• Right Front Motor: Reverse at normal speed.
• Right Rear Motor: Reverse at normal speed.

Rotate Left (The car rotates in place counterclockwise.)

• Left Front Motor: Reverse at normal speed.
• Left Rear Motor: Reverse at normal speed.
• Right Front Motor: Forward at normal speed.
• Right Rear Motor: Forward at normal speed.