S17: CamBot - Revision history

Proj user16: /* Objectives & Introduction */

2017-05-27T06:59:22Z

‎Objectives & Introduction

Proj user16: /* Objectives & Introduction */

2017-05-27T06:58:01Z

‎Objectives & Introduction

Proj user16: /* Team Members & Responsibilities */

2017-05-27T06:57:32Z

‎Team Members & Responsibilities

Proj user16: /* Project Video */

2017-05-27T06:55:06Z

‎Project Video

Proj user16: /* Motor Shield */

2017-05-27T06:38:36Z

‎Motor Shield

Proj user16: /* Control of Stepper and DC Motor */

2017-05-27T06:18:40Z

‎Control of Stepper and DC Motor

Proj user16: /* Stepper Motor Task */

2017-05-27T06:12:20Z

‎Stepper Motor Task

Proj user16: /* Technical Challenges */

2017-05-27T06:11:49Z

‎Technical Challenges

Proj user16: /* PCB Schematic Design */

2017-05-27T06:07:57Z

‎PCB Schematic Design

Proj user16: /* PCB Board Layout */

2017-05-27T04:10:35Z

‎PCB Board Layout

← Older revision		Revision as of 06:59, 27 May 2017
Line 21:		Line 21:
	<br>		<br>

−	~~[[File:CmpE244 S17 CamBot gif.gif\|500px\|thumb\|center\|CamBot Interface]]~~

	=== Team Members & Responsibilities ===		=== Team Members & Responsibilities ===

@@ Line 20: / Line 20: @@
 The project also involved integrating all the mechanical components to obtain a stable camera mounting platform.
 <br>
 === Team Members & Responsibilities ===

@@ Line 23: / Line 23: @@
 === Team Members & Responsibilities ===
 '''PCB Design and hardware assembly'''
-*  Goutam Madhukeshwar Hegde
+*  [https://www.linkedin.com/in/goutam-hegde-19779590 Goutam Madhukeshwar Hegde]
 '''Motor driver implementation'''
-*  Spoorthi Mysore Shivakumar
+*  [https://www.linkedin.com/in/spoorthims Spoorthi Mysore Shivakumar]
-*  Aajna Karki
+*  [https://www.linkedin.com/in/aajna Aajna Karki]
 '''Andriod Application and Bluetooth UART interface'''
 *  [https://www.linkedin.com/in/chethankeshava Chethan Palangotu Keshava]

@@ Line 847: / Line 847: @@
 === Project Video ===
-CamBot Demo Video: https://www.youtube.com/watch?v=r5eV1bO_z0Y
+CamBot Demo Video: https://www.youtube.com/watch?v=lykHS3HZx9c&feature=youtu.be
 === Project Source Code ===

@@ Line 355: / Line 355: @@
 The Adafruit motor shield is used in this project.
 <br>'''Why use a motor shield?'''
@@ Line 370: / Line 372: @@
 * DIR_LATCH: Rising edge results in internal bits to be moved out as parallel data
-[[File:CmpE244_S17_CamBot_MotorShield.png|400px|thumb|center|Motor Shield Schematic]]
+[[File:CmpE244_S17_CamBot_MotorShield.png|350px|thumb|center|Motor Shield Schematic]]

@@ Line 730: / Line 730: @@
 * 'direction' is set to clockwise/anticlockwise for Stepper Motor
 * 'fwd_rev' to control the direction for DC Motor
-* 'steps_degree' to control the desired amount of rotation that needs to be achieved by the Stepper Motor.
+* 'start_stop' to start or stop the motor
 ==== Android Application ====

@@ Line 598: / Line 598: @@
 <br>
-'''Latching'''
+'''Latching:'''<br>
 Latching is required since the input is taken serially by the Motor Shield and rendered as parallel output. This design aims at reducing the number of pins.<br>
 In order to enable the stepper motor, the coils need to be energized in a particular sequence based on requirement. Energizing each of the coils is controlled by using a bit to represent the state of each coil. This bit is latched into the latch_state variable. This data is used to enable the energizing of the required coil.

@@ Line 813: / Line 813: @@
 We tested the final assembled CamBot by connecting the board with Android app and sending commands for Stepper motor and DC motor and then pressing Start. The CamBot proceeds to move as commanded and comes to halt when the Stop command is given from the app. We also checked the stability of the mount and vibrations encountered during motion and made some mechanical adjustments to reduce the vibrations.
 <br>
 ===Technical Challenges===

@@ Line 211: / Line 211: @@
 As a first step, we designed a circuit using the components available in the Eagle library. The two important considerations were:
-* The Electrical Characteristics: Based on our requirement of voltage or current rating, we had to select the components which were suitable for our board. For example, if we wanted to connect a switch to conduct 5A current, we should not select a switch with 2A current rating from the library because the copper width for a 2A switch will not be able to conduct 5A current.
+* '''Electrical Characteristics:''' Based on our requirement of voltage or current rating, we had to select the components which were suitable for our board. For example, if we wanted to connect a switch to conduct 5A current, we should not select a switch with 2A current rating from the library because the copper width for a 2A switch will not be able to conduct 5A current.
-* Component Selection: We had to to carefully select the components because each component has specific dimension as defined in their library. So, once we convert this schematic into board layout, the size of the pads printed on the board depends on the component selection. We cannot change the size if we select the library components. But there is an option to create our custom components with required electrical characteristics and dimensions. For our design, we used most of the parts from the Sparkfun library as it is very reliable and some of the parts which are not available in the library were created manually using Eagle.
+* '''Component Selection:''' We had to to carefully select the components because each component has specific dimension as defined in their library. So, once we convert this schematic into board layout, the size of the pads printed on the board depends on the component selection. We cannot change the size if we select the library components. But there is an option to create our custom components with required electrical characteristics and dimensions. For our design, we used most of the parts from the Sparkfun library as it is very reliable and some of the parts which are not available in the library were created manually using Eagle.
 [[File:CmpE244 S17 CamBot PCB Schematic.png|700px|thumb|center|PCB Schematics]]

@@ Line 316: / Line 316: @@
 The features of PCB include:
-# Power supply circuit with 12V,5V and 3.3V connectors.
+* Power supply circuit with 12V,5V and 3.3V connectors.
-# Switch to control power to SJOne board and Switch to control power to Motor driver shield.
+* Switch to control power to SJOne board and Switch to control power to Motor driver shield.
-# Female connectors to place Adafruit Motor Driver shield.
+* Female connectors to place Adafruit Motor Driver shield.
-# 34-pin male connectors to connect SJOne board to PCB.
+* 34-pin male connectors to connect SJOne board to PCB.
-# Extra 34-pin male connectors covering all 34 pins of SJOne board for future use or if any extra features were added.
+* Extra 34-pin male connectors covering all 34 pins of SJOne board for future use or if any extra features were added.