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1.3 Turn the Wheel¶

A motor is a typical digital output device, and it is used in the same way as an LED. However, the motor needs to be driven with a large current, and the large current may damage the main control board such as R4 board. Therefore, an motor driver module is used in this occasion, which is a good helper for the R4 board to control the motor safely.

Required Components

In this project, we need the following components.

It’s definitely convenient to buy a whole kit, here’s the link:

Name

ITEMS IN THIS KIT

LINK

3 in 1 Starter Kit

380+

3 in 1 Starter Kit

You can also buy them separately from the links below.

COMPONENT INTRODUCTION

PURCHASE LINK

Arduino Uno R4 Minima

-

Jumper Wires

BUY

TT Motor

-

L9110 Motor Driver Module

-

Schematic

../_images/circuit_1.3_wheel_l9110.png

Wiring

L9110S

R4 Board

Motor

VCC

5V

GND

GND

B-1B(B-2A)

9

B-1A

10

OA

one wire of the motor

OB

one wire of the motor
../_images/1.3_turn_the_wheel_bb.png

Code

Note

  • You can open the file 1.3.turn_the_wheel.ino under the path of 3in1-kit\learning_project\1.3.turn_the_wheel.

  • Or copy this code into Arduino IDE.