![Introduction
A robot is a machine—especially one programmable by a
computer— capable of carrying out a complex series of actions
automatically.[2] Robots can be guided by an external control
device or the control may be embedded within. Robots may be
constructed on the lines of human form, but most robots are
machines designed to perform a task with no regard to their
aesthetics.
Robots can be autonomous or semi-autonomous and range from
humanoids such as Honda's Advanced Step in Innovative Mobility
(ASIMO) and TOSY's TOSY Ping Pong Playing Robot (TOPIO) to
industrial robots, medical operating robots, patient assist robots, dog
therapy robots, collectively programmed swarm robots, UAV
drones such as General Atomics MQ-1 Predator, and even
microscopic nano robots](https://image.slidesharecdn.com/bluetoothcontroledrobot-200519110641/85/Bluetooth-controled-robot-3-320.jpg)
![The Arduino Uno is an open-source microcontroller board based on the Microchip
ATmega328P microcontroller and developed by Arduino.cc.[2][3] The board is
equipped with sets of digital and analog input/output (I/O) pins that may be
interfaced to various expansion boards (shields) and other circuits.[1] The board has
14 digital I/O pins (six capable of PWM output), 6 analog I/O pins, and is
programmable with the Arduino IDE (Integrated Development Environment), via a
type B USB cable.[4] It can be powered by the USB cable or by an external 9-volt
battery, though it accepts voltages between 7 and 20 volts. It is also similar to the
Arduino Nano and Leonardo.](https://image.slidesharecdn.com/bluetoothcontroledrobot-200519110641/85/Bluetooth-controled-robot-5-320.jpg)
Bluetooth controled robot
- 2. Table of Contents • Introduction • Prerequisites for Bluetooth Controller Robot o Arduino Uno o HC-05 Bluetooth Module o L298N Motor Driver Module • Circuit Diagram of Bluetooth Controlled Robot o Components Required o Circuit Design • Code • Android app • Limitations • Applications
- 3. Introduction A robot is a machine—especially one programmable by a computer— capable of carrying out a complex series of actions automatically.[2] Robots can be guided by an external control device or the control may be embedded within. Robots may be constructed on the lines of human form, but most robots are machines designed to perform a task with no regard to their aesthetics. Robots can be autonomous or semi-autonomous and range from humanoids such as Honda's Advanced Step in Innovative Mobility (ASIMO) and TOSY's TOSY Ping Pong Playing Robot (TOPIO) to industrial robots, medical operating robots, patient assist robots, dog therapy robots, collectively programmed swarm robots, UAV drones such as General Atomics MQ-1 Predator, and even microscopic nano robots
- 4. Prerequisites for Bluetooth Controller Robot Arduino Uno
- 5. The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller and developed by Arduino.cc.[2][3] The board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits.[1] The board has 14 digital I/O pins (six capable of PWM output), 6 analog I/O pins, and is programmable with the Arduino IDE (Integrated Development Environment), via a type B USB cable.[4] It can be powered by the USB cable or by an external 9-volt battery, though it accepts voltages between 7 and 20 volts. It is also similar to the Arduino Nano and Leonardo.
- 6. HC-05 Serial Bluetooth Module Bluetooth is a technology for wireless communication. It is designed to replace cable connections.It uses serial communication to communicate with devices. It communicates with microcontroller using serial port (USART). Usually, it connects small devices like mobile phones, PDAs and TVs using a short-range wireless connection to exchange documents. It uses the 2.45GHz frequency band. The connection can be point-to-point or multi-point where the maximum range is 10 meters. The transfer rate of the data is 1Mbps. HC-05 Bluetooth module provides switching mode between master and slave mode which means it able to use neither receiving nor transmitting data.
- 7. L298N motor driver L298N motor driver IC has many applications in the embedded field, especially on the robotics side. Most of the microcontrollers operate on very low voltage (5v) and current while the motors require higher voltages and current So, the microcontrollers cannot provide them such higher current. For this purpose, we use motor driver ICs.
- 8. The motor driver is a little current amplifier. It takes a low current signal and gives out a high current signal which can drive a motor. It can also control the direction of the motor. Motor drives are of many kinds depending upon the maximum supply voltage, maximum output current, rated power dissipation, load voltage, and number outputs, etc. Here we are going to discuss motor driver L298N. It is used in dc motor speed control project and you can interface dc motor easy with microcontroller using this motor driver. and also in Bluetooth controlled robot using a pic microcontroller
- 10. Components Required • Arduino UNO • L298N Motor Driver Module • HC-05 Bluetooth Module • Robot Chassis • 4 x 5V Geared Motors • Connecting Wires • Battery Holder • Power Supply • Android Phone • Bluetooth Controller App
- 11. Arduino Bluetooth Control Arduino Bluetooth Control is an Application That Allows you to control your Arduino board (and similar boards) via Bluetooth, and so to create awesome and fully customized projects, with the new features available Within the app. The settings section Allows you to the implementation adapted to your needs, through a very simple and intuitive interface. Once connected to your lancé and module handles the receiving send sms app to control your board from Wherever You are.Everything you need to do is just to keep a connected phone near your board via the application, and send an sms to It That starts with Arduino and the word Followed by the data you need to send. For example -Arduino 1- -1 means clustering That Will Be feels to your board – Arduino Would hello- send -hello- and so on. The app remembers your smartly Bluetooth Module and Will Always try to connect automatically to the latest one you-have used, so you won’t-have to select it every time you use it.
- 12. Circuit Design The construction of the robot as robot chassis might be different and you can easily figure it out how to build the robot from the available parts and possible cable management for making the robot more appealing. Coming to the design of the circuit, first is the HC-05 Bluetooth Module. The +5V and GND pins of the Bluetooth Module are connected to +5V and GND of Arduino. Since I will be only transmitting data related to the Robot’s movement from Android Phone to Bluetooth Module and do not intend to receive any data from Arduino, I will connect only the TX pin of the Bluetooth Module to RX Pin of Arduino. This RX pin of Arduino is based on SoftwareSerial library (Pin 2 and Pin 3 are configured as RX and TX on Arduino). The RX pin of the Bluetooth is left open.
- 13. Now, the L298N Motor Driver Module. Digital I/O Pins 9 through 12 of Arduino are configured as Input pins of the Motor Driver and are connected to IN1 through IN4 of the L298N Motor Driver Module. Both the Enable Pins are connected to 5V through provided jumper. The robot chassis which I am using in this Bluetooth Controlled Robot Car project is supplied with 4 geared motors. Since L298N has slots for only two motors, I have joined the left side motors as one set and the right side motors as other set and connected both these sets to the output of L298N Module.
- 14. Code FORWARD digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); REVERSE digitalWrite(IN1, LOW); digitalWrite(IN2, HIGH); digitalWrite(IN3, LOW); digitalWrite(IN4, HIGH); RIGHT digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, LOW); LEFT digitalWrite(IN1, LOW); digitalWrite(IN2, LOW); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW);
- 15. Android App I have used a simple app called Bluetooth Controller, which is installed on an Android Phone to communicate with the Bluetooth Module. The above given Arduino code is written to synchronize with the data configured in the Bluetooth Controller App. In this project, I have used the same app with modifications in the data to be transmitted. Limitations • As the range of the Bluetooth Communication is limited (a maximum of 10 meters for class 2 devices for example) the control range of Bluetooth Controlled Robot is also limited. • Make sure that sufficient power is provided to all the modules especially the Bluetooth Module. If the power is not sufficient, even though the Bluetooth Module powers on, it cannot transmit data or cannot be paired with other Bluetooth devices.
- 16. Applications • Low range Mobile Surveillance Devices • Military Applications (no human intervention) • Assistive devices (like wheelchairs) • Home automation CONCLUSION We can interface sensors to this robot so that it can monitor some parameters also we can add wireless camera to this robot . We can do slight modifications in the project and develop various applications