S14: Wireless Control Car - Revision history

Proj user14: /* Conclusion */

2014-12-23T09:28:56Z

‎Conclusion

Proj user14: /* Conclusion */

2014-12-23T09:28:31Z

‎Conclusion

Preet: /* Project Source Code */

2014-08-06T23:43:49Z

‎Project Source Code

Preet: /* Grading Criteria */

2014-05-26T19:26:59Z

‎Grading Criteria

Proj user14: /* Design & Implementation */

2014-05-25T06:58:05Z

‎Design & Implementation

Proj user14: /* Objectives & Introduction */

2014-05-25T06:54:54Z

‎Objectives & Introduction

Proj user14: /* Hardware Design */

2014-05-25T06:49:39Z

‎Hardware Design

Proj user14: /* Objectives & Introduction */

2014-05-25T06:42:48Z

‎Objectives & Introduction

Proj user14: /* Objectives & Introduction */

2014-05-25T06:25:20Z

‎Objectives & Introduction

Proj user14: /* Testing & Technical Challenges */

2014-05-25T05:42:20Z

‎Testing & Technical Challenges

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 The whole project experience was fun and very educational. We learned about how sonar sensor, accelerometer sensor, wireless sensor and motor controllers works. We faced some technical challenges such as controlling the motor speed, getting the right distance value from the sonar sensor, and some of the power issues such as the right amount of current to the DC motors.
-This project can be expanded to include more features such as an sonar sensor connected to the servo motor that rotates left and right to get distance from all the sides. This can reduce the number of sonar sensors. Furthermore, a improvement can be done in master and motor controller to control the car more precisely by controlling the car movement more accurately. A future suggestion would be to avoid non avoidable obstacles such as grass or follow only the planned route (may be be using some sensors or image detection.
+This project can be expanded to include more features such as an sonar sensor connected to the servo motor that rotates left and right to get distance from all the sides. This can reduce the number of sonar sensors. Furthermore, a improvement can be done in master and motor controller to control the car more precisely by controlling the car movement more accurately. A future suggestion would be to avoid non avoidable obstacles such as grass or follow only the planned route (may be be using some sensors or image detection).
 === Project Video ===

@@ Line 299: / Line 299: @@
 == Conclusion ==
-The whole project experience was fun and very educational. I learned about how ultrasonic sensor, accelerometer sensor, wireless sensor and motor controllers works. I faced some technical challenges such as controlling the motor speed, getting the right distance value from the ultrasonic sensor, and some of the power issues such as the right amont of current to the DC motors.
+The whole project experience was fun and very educational. We learned about how sonar sensor, accelerometer sensor, wireless sensor and motor controllers works. We faced some technical challenges such as controlling the motor speed, getting the right distance value from the sonar sensor, and some of the power issues such as the right amount of current to the DC motors.
-This project can be expanded to include more features such as an ultrasonic sensor connected to the servo motor that rotates left and rgiht to get distance from all the sides.
+This project can be expanded to include more features such as an sonar sensor connected to the servo motor that rotates left and right to get distance from all the sides. This can reduce the number of sonar sensors. Furthermore, a improvement can be done in master and motor controller to control the car more precisely by controlling the car movement more accurately. A future suggestion would be to avoid non avoidable obstacles such as grass or follow only the planned route (may be be using some sensors or image detection.
 === Project Video ===

@@ Line 307: / Line 307: @@
 === Project Source Code ===
-Send me your zipped source code and I will upload this to SourceForge and link it for you.
+*  [https://sourceforge.net/projects/sjsu/files/CmpE244_SJSU_S2014/ Sourceforge source code link]
 == References ==

← Older revision		Revision as of 19:26, 26 May 2014
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−	~~=== Grading Criteria ===~~
−	~~<font color="green">~~
−	* How well is Software & Hardware Design described?
−	* How well can this report be used to reproduce this project?
−	* Code Quality
−	* Overall Report Quality:
−	** Software Block Diagrams
−	** Hardware Block Diagrams
−	**: Schematic Quality
−	** Quality of technical challenges and solutions adopted.
−	~~</font>~~
−
	== Project Title ==		== Project Title ==
	Wireless Control Car		Wireless Control Car

← Older revision		Revision as of 06:58, 25 May 2014
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	The hardware is designed by going through each project part's datasheet and LPC1758 microcontroller. After understanding the pin connections and the design, all the parts are connected by jumper wires. The Power to the microcontroller is supplied by USB cable which is spliced so that one end is connected to the 5V power supply. The Power source used for this project is rechargeable 9V battery, which is then connected to a power distribution circuit. A Power distribution circuit takes 9V from rechargeable battery converts to 5V.		The hardware is designed by going through each project part's datasheet and LPC1758 microcontroller. After understanding the pin connections and the design, all the parts are connected by jumper wires. The Power to the microcontroller is supplied by USB cable which is spliced so that one end is connected to the 5V power supply. The Power source used for this project is rechargeable 9V battery, which is then connected to a power distribution circuit. A Power distribution circuit takes 9V from rechargeable battery converts to 5V.

−	[[File:~~SJone_board~~.jpg]]	+	[[File:CmpE244_S14_SJone_board.jpg]]

@@ Line 20: / Line 20: @@
 The objective of this project is to build a wireless robotic car. This car has two DC motors to control front and back wheels, an H bridge dual motor controller to control the speed and direction of the motor, a ultrasonic sensors for obstacle avoidance, an Accelerometer sensor to detect the direction of board rotation and a wireless module to control the car wirelessly.
-[[File:Car.jpg]]
+[[File:CmpE244_S14_Car.jpg]]
-[[File:Toy_car.jpg]]    [[File:Front_motor.jpg]]
+[[File:CmpE244_S14_Toy_car.jpg]]    [[File:CmpE244_S14_Front_motor.jpg]]
-[[File:Back_motor.jpg]]
+[[File:CmpE244_S14_Back_motor.jpg]]

@@ Line 154: / Line 154: @@
 == Design & Implementation ==
 === Hardware Design ===
-The hardware is designed by going through each project part's datasheet and LPC1758 microcontroller. After understanding the pin connections and the design, all the parts are connected by jumper wires. The Power to the microcontroller is supplied by USB cable which is spliced so that one end is connected to the 5V power supply. The Power source used for this project is rechargeable 9V battery, which is then connected to a power distribution circuit. A Power distribution circuit takes 9V from rechargeable battery converts to 5V. The Following block diagram shows the overall connection between the project parts:
+The hardware is designed by going through each project part's datasheet and LPC1758 microcontroller. After understanding the pin connections and the design, all the parts are connected by jumper wires. The Power to the microcontroller is supplied by USB cable which is spliced so that one end is connected to the 5V power supply. The Power source used for this project is rechargeable 9V battery, which is then connected to a power distribution circuit. A Power distribution circuit takes 9V from rechargeable battery converts to 5V.
 [[File:CmpE244_S14_HWDesign.jpg]]

@@ Line 19: / Line 19: @@
 == Objectives & Introduction ==
 The objective of this project is to build a wireless robotic car. This car has two DC motors to control front and back wheels, an H bridge dual motor controller to control the speed and direction of the motor, a ultrasonic sensors for obstacle avoidance, an Accelerometer sensor to detect the direction of board rotation and a wireless module to control the car wirelessly.
 The project is divided into following objectives:

@@ Line 290: / Line 290: @@
 Receiving module is tested by printing the output value that it received from transmitting module and the value that it sends to the motor controller and the ultrasonic sensor.
-'''Ultrasonic sensor''' is tested by probing (by oscilloscope) on the trigger and echo pins on the ultrasonic sensor. It validated that the microcontroller is sending the trigger and the sensor is outputting the echo back pulse. The timer1 function provided with the code gives the precise timing result as compared to the in built timing function (such as simple for loop).
+'''Ultrasonic sensor''' is tested by probing (by oscilloscope) on the trigger and echo pins on the ultrasonic sensor. It validated that the microcontroller is sending the trigger and the sensor is outputting the echo back pulse. The timer1 function provided with the code gives the precise timing result as compared to the inbuilt timing function (such as simple for loop).
 '''Motor controller''' is tested by printing out the speed and the direction of motor value on the terminal screen. At first the motor didn't run because of low current supply, but after correct power supply it started to run. The interrupt pins needed to be set correctly to rotate the motor clock and anticlockwise.
 '''Complete Project testing:'''
-The whole project is tested by connecting everything together and then sending the command through a transmitting board to receiving board and observing its behavior. At first the controlling of car such as direction and speed control was difficult, but after increasing the speed(PWM signal)and fixing the signals send to interrupt pins on motor controller for direction. There was also an delay problem that both receving and transmitting module has to controll the car more precisely. This is issue was resolved by minimizing the delay that I put in the code after every command that both the boards send and receive.
+The whole project is tested by connecting everything together and then sending the command through a transmitting board to receiving board and observing its behavior. At first the controlling of car such as direction and speed control was difficult, but after increasing the speed (PWM signal) and fixing the signal send to interrupt pins on the motor controller, the problem was resolved. There was also a delay problem that causes both receiving and transmitting module to control the car more precisely. This is issue was resolved by minimizing the delay that I put in the code after every command that both the boards send and receive.
 == Conclusion ==