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Control-Project
- 1. 1 Control Project Ahmed Hassan Ahmed Eteba o 5313016 Mahmoud Essam Mohamed Barakat o 5313335 Sherif Salah Hamdy Aly o 5313158
- 2. 2 Summary In this report we talk about our project’s day by day progress, the components we use, the problems that we faced and the ideas we suggest to overcome these problems.
- 3. 3 Table of contents Table of Contents Table of contents............................................................................................3 Introduction ....................................................................................................6 Progress...........................................................................................................7 Day 1: ........................................................................................................7 Ideas of movement: ..........................................................................7 Ideas of measuring GSM and Wi-Fi:............................................7 Day 2: ........................................................................................................8 Searching: ...........................................................................................8 Day 3: ........................................................................................................9 Day 4: ........................................................................................................9 Buying...................................................................................................9 Day 5: ......................................................................................................10 Researching and ideas ..................................................................10 Day 6: ......................................................................................................10
- 4. 4 Day 7: ......................................................................................................11 Day 8: ......................................................................................................11 Day 9: ......................................................................................................12 Day 10:....................................................................................................12 Day 11:....................................................................................................13 Day 13:....................................................................................................14 Day 14:....................................................................................................14 Day 15:....................................................................................................14 Components..................................................................................................15 Arduino Uno:..........................................................................................15 Wi-Fi Arduino shield: ...........................................................................17 Infrared sensors (line follower module):.........................................18 Ultrasonic sensor (HC-SR04): ..........................................................20 DC motors and wheels: ......................................................................22 Line Follower robot .....................................................................................23 Line follower robot block diagram........................................................25 Bluetooth controlled car ..............................................................................26 Bluetooth controlled car block diagram................................................28 Conclusion....................................................................................................29
- 5. 5 What we‘ve learnt?......................................................................................30 Problems we faced.......................................................................................31 References ....................................................................................................32
- 6. 6 Introduction We are requested to make a project in the control course about something that moves in the x-y axis (bonus: z-axis) and measuring mobile and Wi-Fi signals, then after scanning the area, it will stop at the location which has the higher signals strength.
- 7. 7 Progress Day 1: In the first day we suggest some ideas and we search about them at home. Ideas of movement: Mobile controlled car Line follower robot Ideas of measuring GSM and Wi-Fi: Using sensors Using mobile as a sensor Using Arduino shields
- 8. 8 Day 2: Searching: After searching , we have found that line follower needs the following components: 1. Car body 2. 2 DC motors 3. 2 wheels and 1 free wheel 4. At least 2 IR sensors (5 or 6 recommended) 5. Drive motor (H-Bridge) LM358N 6. Arduino Uno And the signals can be measured by 1. RF sensor 2. GSM Arduino shield 3. Wi-Fi Arduino shield
- 9. 9 Day 3: We search about how we can measure the signals and we found that we can measure them by: 1. RF sensor 2. GSM Arduino shield 3. Wi-Fi Arduino shield We also search about the programming code of the line follower robot. Day 4: Buying We found the following components: 1. Car body 2. 2 DC motors 3. 2 wheels 4. Drive motor (H-Bridge) LM358N 5. IR line following module 6. Arduino Uno Problems we faced while buying: 1. We didn’t find the free wheel or the RF sensor 2. The GSM Arduino shield is expensive (about 650 L.E)
- 10. 10 Day 5: Researching and ideas We make a new search in order to overcome these problems. We suggest that we do a circuit that receives the mobile and Wi-Fi signals. Day 6: We asked the teaching assistants and the professors in the communication department about doing a circuit that receives the mobile and Wi-Fi signals and measure it and they told us that it is complicated.
- 11. 11 Day 7: We implement the project and make tasks that we will do in the lab in the next day, then we disjoint the whole project. We suggest another idea in order to measure the signals which is using the mobile phone as a sensor. Day 8: Our section was in this day. In the lab we re implement the project and we wrote the Arduino code.
- 12. 12 Day 9: We suggest an idea of having a plan B, so that if anything wrong happens to the IR sensors we would use a Bluetooth module to control the movement of the robot by the mobile phone. While we were buying the Bluetooth module, we found the free wheel and bought it. Day 10: We search about the programming code of the Bluetooth module. We implement the free wheel.
- 13. 13 Day 11: We search about the mobile applications which measures the mobile signal and Wi-Fi signal strength , and sends it to the Arduino We found mobile applications which measures the mobile signals in dB like “open signal” app and “Wi-Fi Analyzer” app which measures the Wi-Fi signal also in dB but they don’t send these measures via Bluetooth or any other mean of communication between the mobile phone and the Arduino. We found that there’s no mobile application which gets the power of the GSM and Wi-Fi signals and sends these signals to the Arduino, and to make this application it needs an android programming, which needs at least about 50% background in Java programming and we don’t know anything about Java.
- 14. 14 Day 12: We found that there is a circuit that senses if the mobile is used or not (like calling or texting). Day 13: Searching for an app on the app store that sends the signals to the Arduino. Day 14: Trying to get a programmed android app from the internet. Day 15: We finally test our project
- 15. 15 Components Arduino Uno: The controller of the circuit which contain the programming code wrote with a programming language called Processing.
- 16. 16 GSM Arduino shield: The sensor of the mobile signal, which returns the mobile signal strength to the Arduino Uno.
- 17. 17 Wi-Fi Arduino shield: The sensor of the Wi-Fi signal, which returns the Wi-Fi signal strength to the Arduino Uno.
- 18. 18 Infrared sensors (line follower module): The infrared sensor has infrared LED , which emits not invisible infrared light , and has infrared LAD , which absorbs the infrared light , if it is reflected by a non-black object (because black absorbs light) .
- 19. 19 This sensor used in the line follower robot to determine the black line.
- 20. 20 Ultrasonic sensor (HC-SR04): It is used to measure the distance , by sending a pulse on the trigger pin (it’s minimum time of the pulse’s HIGH is 10 microseconds) , this pulse will send an ultrasonic sound
- 21. 21 When this ultrasonic sound is reflected by an object, it will travel the same distance between the sensor and the object again. By knowing the time between sending the sound and receiving it, this is the time of double the distance between the sensor and the object, so we need the half of this time, and we know the speed of the sound which is 340 m/sec, from the equation of “Distance = speed * time”, we can calculate the distance between the sensor and the object.
- 22. 22 DC motors and wheels: The DC motors used to rotate the wheels to move the robot and they are controlled by the Arduino indirectly.
- 24. 24 We use 3 IR sensors to detect the black line that the robot will follow, so we solve the problem of moving in x-y axis. We use Arduino shields (GSM and Wi-Fi shields) to measure the two signals strengths. In order to be able to get back to the location that has the maximum signals we need to know the coordinates of the location which has the maximum signals. So by knowing the U-Turn number and the distance travelled in this U-Turn, we can save the location which has the maximum signals by saving its number of U-Turn and distance, so that the robot can get back to that location. So we use ultrasonic sensor to measure the distance and the number of U-Turn.
- 25. 25 Line follower robot block diagram
- 27. 27 We control the car by using the Bluetooth module (HC-05) with a mobile application “SENA B Term” In the code we have programmed the Arduino to move: forward by pressing “w” in the keyboard of the mobile backward by pressing “s” in the keyboard of the mobile right by pressing “d” in the keyboard of the mobile left by pressing “a” in the keyboard of the mobile stop by pressing “x” in the keyboard of the mobile
- 28. 28 Bluetooth controlled car block diagram
- 29. 29 Conclusion In our opinion, the best solution of the moving problem we thought in, to make a vehicle that has a programmable and customizable chip so we can customize it to solve the problem of moving along with taking the readings from the sensors and run the program we wrote on it to locate the point of the maximum readings and stop on it after taking one complete lap (to take all the readings).
- 30. 30 What we‘ve learnt? We learnt how to program an Arduino chip We improved our mechanical & electrical skills. We get a lot of experience in the field of Electrical Engineering. We learnt how to deal with hard tasks. We learnt how to manage our time. We learnt more about (Team Work).
- 31. 31 Problems we faced We didn’t have the knowledge of programming the Arduino. Some of the components was not easy to found in the market. Some of the components was too expensive. The time was too short to finish the project. We have been suspected that we have a bomb and we was going to be arrested (Many times)