Gesture control robot using by Ardiuno
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The document describes a gesture controlled robot project. The objective is to create a simple and inexpensive device that can be mass produced to help disabled people maneuver wheelchairs without touching the wheels. The robot uses an accelerometer to detect hand gestures which are sent to a microcontroller via an RF transmitter/receiver. The microcontroller controls motors via a motor driver to move the robot in corresponding directions based on the gestures.
Gesture control robot using by Ardiuno
- 3. Objective Of Project • Our objective is to make this device simple as well as cheap so that it could be mass produced and can be used for a number of purposes
- 4. MotivationFor Project • Our motivation to work on this project came from a disabled person who was driving his wheel chair by hand with quite a lot of difficulty. So we wanted to make a device which would help such people drive their chairs without even having the need to touch the wheels of their chairs.
- 5. Introduction • Recently, strong efforts have been carried out to develop intelligent and natural interfaces • between users and computer based systems based on human gestures. • Gestures provide an • intuitive interface to both human and computer. Thus, such gesture • based interfaces can not only • substitute the common interface devices, but can also be exploited to extend their functionality.
- 6. Robot • A robot is usually an electro-mechanical machine that can perform tasks automatically. Some robots require some degree of guidance, which may be done using a remote control or with a computer interface. Robots can be autonomous, semi-autonomous or remotely controlled. Robots have evolved so much and are capable of mimicking humans that they seem to have a mind of their own.
- 7. Human Machine Interaction • An important aspect of a successful robotic system is the Human-Machine interaction. In the early years the only way to communicate with a robot was to program which required extensive hard work. With the development in science and robotics, gesture based recognition came into life. Gestures originate from any bodily motion or state but commonly originate from the face or hand. Gesture recognition can be considered as a way for computer to understand human body language. This has minimized the need for text interfaces and GUIs (Graphical User Interface).
- 8. Gesture • A gesture is an action that has to be seen by someone else and has to convey some piece of information. Gesture is usually considered as a movement of part of the body, esp. a hand or the head, to express an idea or meaning.
- 9. Material Required 1. For transmitter- • Arduino Uno • ADXL335 accelerometer • 433 MHz RF transmitter • Breadboard • Of course you will also need jumper wires and 9V batteries • 2. For receiver and robot- • Arduino Uno • 433 MHz RF receiver • L293D motor driver IC • Chassis and wheels • 2 DC motors • Breadboard We will divide entire robot into three parts are transmitter, receiver and the programmable robot
- 11. Circuit Diagram Of Transmitter
- 12. Working Principle • Our gesture controlled robot works on the principle of accelerometer which records hand movements and sends that data to the comparator which assigns proper voltage levels to the recorded movements. That information is then transferred to a encoder which makes it ready for RF transmission. On the receiving end, the information is received wirelessly via RF, decoded and then passed onto the microcontroller which takes various decisions based on the received information. These decisions are passed to the motor driver ic which triggers the motors in different configurations to make the robot move in a specific direction. With the help block diagram to understand the working of the robot:
- 13. Block Diagram Accelerometer ADXL335 Comparator LM324 Encoder HT12E RF Transmitter RF Receiver Decoder HT12D Arduino Module Motor Driver L293D DC Motors
- 14. IntroductionTo Arduino - Based on AVR microcontrollers that are widely popular for their RISC architecture, high flash memory, inbuilt different features - Arduino Uses C and C++ programming(E A S Y)……
- 15. Introduction To Arduino Open Source Hardware and Software Platform Program can be upload by the USB cable
- 16. What is Arduino? A microcontroller board, contains on-board power supply, USB port to communicate with PC, and an Atmel microcontroller chip. It simplify the process of creating any control system by providing the standard board that can be programmed and connected to the system without the need to any sophisticated PCB design and implementation. It is an open source hardware, any one can get the details of its design and modify it or make his own one himself.
- 17. Arduinoboards: UNO Mega LilyPad Arduino BT Arduino Nano Arduino Mini
- 18. ArduinoUNO: Digital output ~: PWM. 0,1: Serial port. In circuit Serial programming Atmel Microcontroller Analog input. Power Supply USB port Power input Reset Button
- 19. Hardware I/O PORTS ========== 14 PWM ========== 6 Analog ========== 6 8 bit =======256 10 bit ======= 1023 ADC
- 20. Why Arduino? - Inbuilt ADC, Serial Interface, PWM, IO pins -Programming so easy……(Can be used available libraries) -Open Source platform -Arduino program is similar to C and C++ programming
- 21. ArduinoIDE:
- 23. Void setup(){} Used to indicate the initial values of system on starting. Void loop(){} Contains the statements that will run whenever the system is powered after setup. CodeStructure:
- 24. Program#define FD 16 #define BD 17 #define LD 18 #define RD 19 #define m11 3 #define m12 4 #define m21 5 #define m22 6 void forward() { digitalWrite(m11, HIGH); digitalWrite(m12, LOW); digitalWrite(m21, HIGH); digitalWrite(m22, LOW); } void backward() { digitalWrite(m11, LOW); digitalWrite(m12, HIGH); digitalWrite(m21, LOW); digitalWrite(m22, HIGH); } void left() { digitalWrite(m11, HIGH); digitalWrite(m12, LOW); digitalWrite(m21, LOW); digitalWrite(m22, LOW); } void right() { digitalWrite(m11, LOW); digitalWrite(m12, LOW); digitalWrite(m21, HIGH); digitalWrite(m22, LOW); } void Stop() { digitalWrite(m11, LOW); digitalWrite(m12, LOW); digitalWrite(m21, LOW); digitalWrite(m22, LOW); } void setup() { pinMode(FD, INPUT); pinMode(BD, INPUT); pinMode(LD, INPUT); pinMode(RD, INPUT); pinMode(m11, OUTPUT); pinMode(m12,OUTPUT); pinMode(m21,OUTPUT); pinMode(m22,OUTPUT); } void loop() {int temp1=digitalRead(FD); int temp2=digitalRead(BD); int temp3=digitalRead(LD); int temp4=digitalRead(RD); if(temp1==1 && temp2==0 && temp3==0 && temp4==0) backward(); else if(temp1==0 && temp2==1 && temp3==0 && temp4==0) forward(); else if(temp1==0 && temp2==0 && temp3==1 && temp4==0) left(); else if(temp1==0 && temp2==0 && temp3==0 && temp4==1) right(); else Stop(); }
- 26. Serial Communication • Compiling turns your program into binary data and zeros) • Uploading sends the bits through USB cable to the Arduino • The two LEDs near the USB connector blink when data is transmitted • RX blinks when the is receiving data • TX blinks when the
- 27. APPLICATIONS • Through the use of gesture recognition, remote control with the wave of a hand of various devices is possible. • Gesture controlling is very helpful for handicapped and physically disabled people to achieve certain tasks, such as driving a vehicle. • Gestures can be used to control interactions for entertainment purposes such as gaming to make the game player's experience more interactive or immersive.
- 28. CONCLUSION We achieved our objective without any hurdles i.e. the control of a robot using gestures. The robot is showing proper responses whenever we move our hand. Different Hand gestures to make the robot move in specific directions are as follow:
- 29. Fig Move Forward Fig Move Backward Fig Move Right Fig Move Left The robot only moves when the accelerometer is moved in a specific direction. The valid movements are as follows: DIRECTION ACCELEROMETER ORIENTATION Forward +y Backward -y Right +x Left -x Stop Rest