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Pure Software code |
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| Home : Chapter 6: 4WD Robot Car, Bluetooth
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Multi-Functional 4
Wheel Drive Robot Car |
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The Chapters :
1
2
3
4 5 6 |
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Chapter 6: 4WD Robot Car,
Bluetooth. |
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1-
Project description, uses Bluetooth module |
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This project, regarding Arduino
as main control, uses Bluetooth module to receive signal
from mobile phone, and then send the signal to Arduino.
Arduino will analyze the signal and then control the driver
motor to control the motion of the car.
In addition, you can observe the state and speed of the car, the angle of
motor, and the distance between car and obstacle
Principle：
1. Connecting Aduino to Bluetooth module, this module
communicates with APP on the mobile phone
2. APP sending “U”“D”“L”“R”“S” to Bluetooth module
3. Bluetooth module will send the received massage to
Arduino, and Arduino controls the car correspondingly.
4. When Arduino receiving “U”, the car goes forward;
when receiving “D”, it goes backward; when receiving “R”, it
turns right; when receiving “S”, it stops moving |
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2- Robot
Components, Uses Bluetooth module |
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Types |
Qty |
| 2.1 |
Arduino Uno R3 |
1pcs |
| 2.2 |
V5.0 Expansion board |
1pcs |
| 2.3 |
L293D motor driver board |
1pcs |
| 2.4 |
BO motor |
4pcs |
| 2.5 |
Bluetooth module |
1pcs |
| 2.6 |
Wheel |
4pcs |
| 2.7 |
Battery Case + Lithium-ion battery |
1pcs + 2pcs |
| 2.8 |
Acrylic plates |
2pcs |
| 2.9 |
USB cable |
1pcs |
| 2.10 |
Aluminium Block |
4pcs |
| 2.11 |
F-F dupont wire |
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3- Robot
Car, How Bluetooth Works, Bluetooth module |
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How Bluetooth Works
Bluetooth is a short-range wireless technology for
transmitting and receiving data. It operates in the ISM
(Industry, Scientific, and Medical) band from 2.400 to 2.485
GHz.
Bluetooth is intended to be used in PAN or Personal Area
Networks and is typically limited to a maximum range of 100
meters (about 330 feet). Not all Bluetooth devices can
achieve this range, some can only operate to a maximum of 10
meters. As with all radio communications the range can be
affected by the environment it is used in.
Bluetooth was originally developed by engineers at Ericsson
Mobile in Sweden in 1989. Nils Rydbeck, the Chief Technology
Officer at Ericsson, named the standard Bluetooth after the
tenth-century king Harald Bluetooth. The king had united a
number of Danish tribes, just like modern devices from
different manufacturers are united using Bluetooth.
Bluetooth Module
The Elegoo Smart Robot Car has a Bluetooth Module mounted on
the Arduino shield. The module is a generic version of the
popular HC-05 or HC-08 modules.
These modules have a working voltage of 3.3 volts but are
5-volt logic tolerant. They can operate at speeds of up to
115,200 baud. In the sketches we will look at the modules
are used at 9600 baud.
The modules also support the AT Command Set, a standard set
of commands that begin with the text string “AT”. This
command set has been around for decades and was first used
on computer modems in the 1980s.
In the Elegoo Smart Robot Car the Bluetooth module is
connected to the RX (receive) and TX (transmit) pins on the
Arduino, which are also digital I/O pins 0 and 1. These are
the same connections used by the USB port on the Arduino. |
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| Bluetooth module |
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4-
Video,
Bluetooth Car Of the Multi-Functional 4 Wheel Drive Robot
Car |
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4.1- Watch Video on Youtube,
Arduino Smart Car,
Bluetooth Car -
Part 3 |
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السيارة الذكية -
التحكم
بالروبوت من خلال البلوتوث، الدرس 32 - الجزء 5 - للمهندس
حمزة عمار |
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The Chapters :
1
2
3
4 5 6 |
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