S22: TBD

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Project Title

<TBD>


Abstract

<2-3 sentence abstract>

Introduction

The project was divided into 5 modules:

  • Sensor
  • Motor
  • Geo Controller
  • Driver/LCD Controller
  • Web application

Team Members & Responsibilities

<Team Picture>

Gitlab Project Link - [1]

<Provide ECU names and members responsible> <One member may participate in more than one ECU>

  • Sensor
    • Brian Ho
    • Jasdip Sekhon
  • Motor
    • Billy Lai
    • Link to Gitlab user2
  • Geographical
    • Justin Stokes
    • Link to Gitlab user2
  • Communication Bridge Controller & LCD
    • Isaac Wahhab
    • Link to Gitlab user2
  • Android Application
    • Link to Gitlab user1
    • Link to Gitlab user2
  • Testing Team
    • Billy Lai
    • Link to Gitlab user2


Schedule

Week# Start Date End Date Task Status
1 02/15/2022 02/21/2022
  • Discussed sensors for prototyping, and reviewed previous projects.
Completed
2 02/22/2022 02/28/2022
  • Ordered Parts
 Completed
3 03/01/2022 03/07/2022
  • Looking at potential options for additional sensors
 Completed
4 03/08/2022 03/14/2022
  • Learning to use CAN BUSMASTER
 Completed
5 03/15/2022 03/21/2022
  • Made prototype for project .dbc file
 Completed
6 03/22/2022 03/28/2022
  • Discuss and learn how to use Eagle for PCB fabrication
 Completed
7 03/29/2022 04/04/2022
  • Parts testing and prototyping
 Completed
8 04/05/2022 04/11/2022
  • List hardware requirements for the PCB fabrication
  • Start research on web application for interfacing with RC car
  • Finalize GPS and sensor testing
 Completed
9 04/12/2022 04/18/2022
  • Order first PCB prototype
    • Design and review PCB prototype
    • Get GEO messages and SENSOR messages to the DRIVER node
  • Continue web application research
    • Find a viable framework and IDE for development
  • Test RC car interfacing
    • Verify wheel control motor on the RC car (can move forward and reverse at various speeds)
    • Verify steering control motor on the RC car (can steer left and right)
  • Integrate GPS and sensors on the same CAN bus using different nodes
  • Integrate ESP32 to BRIDGE node
  • Milestones:
    • Detect an obstacle and command the RC car motor to stop
 Completed
10 04/19/2022 04/25/2022
  • Have a prototype for the web application
    • Test BRIDGE node receiving data from web application
  • Test interacting with the RC car wirelessly
    • Test RC car wheel control from wireless control
    • Test RC car steering control from wireless control
  • Test LCD peripheral and output debug messages
    • Configure and command LCD display
 In Progress
11 04/26/2022 05/02/2022
  • Start creating a mount on the RC car to contain all the hardware
  • Finalize LCD display controlling
    • Display RPM of wheels
    • Display desired direction heading
 In Progress
12 05/03/2022 05/09/2022
  • Brainstorm collision logic for RC controller
    • Handle case for stair obstacle
    • Handle sensor data
 Incomplete
13 05/10/2022 05/16/2022
  • Test collision logic for RC controller
    • Ensure LED lights up when DRIVER logic is taking collision logic branch instead of driving towards destination
  • Finalize the collision logic
 Incomplete
14 05/17/2022 05/25/2022
  • Final testing of full project
    • Verify the SENSOR/BRIDGE node receives data from web application
    • Verify the GEO node receives GPS destination from SENSOR/BRIDGE node
    • Verify the DRIVER node receives GEO status messages
    • Verify the DRIVER node receives SENSOR messages
    • Verify the MOTOR node sends DBG command messages
  • Finalize wiki report
    • Ensure every section is filled
 Incomplete


Parts List & Cost

Item# Part Desciption Vendor Qty Cost
1 RC Car Redcat Racing [2] 1 $139.00
2 SJTwo Boards SJTwo Boards On Amazon [3] 1 $139.00
3 CAN Transceivers (SN65HVD230) Waveshare [4] 4 $10.00
4 LSM303 Triple-Axis Accelerometer and Magnetometer 1
5 GPS Module 1
6 Ultrasonic Sensors 4
7 PCB 1
8 Plexiglass 1


Printed Circuit Board

<Picture and information, including links to your PCB> We designed and implemented two PCBs: CAN Bus PCB and RC Car PCB.


CAN Bus PCB Schematic Cmpe-243-can-bus-pcb-schematic.png CAN Bus PCB Board Cmpe-243-can-bus-pcb-board.png
RC Car PCB Schematic Cmpe-243-rc-car-pcb-schematic.png
RC Car PCB Board Cmpe-243-rc-car-pcb-board.png RC


CAN Communication

<Talk about your message IDs or communication strategy, such as periodic transmission, MIA management etc.>

Our message IDs are arranged with priority given to the nodes in the following order: DRIVER, SENSOR, GEO, MOTOR.

We decided to give 32 message IDs to each node and to separate the nodes' message IDs accordingly.

Node Message ID Range
1 DRIVER 32 - 63
2 SENSOR 63 - 95
3 GEO 96 - 127
4 MOTOR 128 - 159

Hardware Design

<Show your CAN bus hardware design>

DBC File

Gitlab link to our master branch's DBC file

Our DBC file includes the SENSOR, DRIVER, MOTOR, and GEO nodes.

Below are the messages defined in the file:

BO_ 32 DRIVER_TO_MOTOR_CMD: 1 DRIVER 

SG_ DRIVER_TO_MOTOR_steer : 0|3@1+ (1,-2) [-2|2] "" MOTOR
SG_ DRIVER_TO_MOTOR_speed : 3|5@1+ (1,0) [0|31] "RPM" MOTOR

BO_ 64 SENSOR_TO_DRIVER_SONARS: 3 SENSOR 

SG_ SENSOR_TO_DRIVER_SONARS_front_left : 0|8@1+ (1,0) [0|0] "" DRIVER
SG_ SENSOR_TO_DRIVER_SONARS_front_middle : 8|8@1+ (1,0) [0|0] "" DRIVER
SG_ SENSOR_TO_DRIVER_SONARS_front_right : 16|8@1+ (1,0) [0|0] "" DRIVER

BO_ 65 GPS_DESTINATION_LOCATION: 8 SENSOR 

SG_ GPS_DESTINATION_LOCATION_latitude : 0|28@1+ (0.000001,-90.000000) [-90|90] "Degrees" GEO
SG_ GPS_DESTINATION_LOCATION_longitude : 28|29@1+ (0.000001,-180.000000) [-180|180] "Degrees" GEO

BO_ 96 GEO_STATUS: 5 GEO 

 SG_ GEO_STATUS_compass_direction : 0|9@1+ (1,0) [0|359] "Degrees" SENSOR,DRIVER
 SG_ GEO_STATUS_destination_direction : 9|9@1+ (1,0) [0|359] "Degrees" SENSOR,DRIVER
 SG_ GEO_STATUS_distance_to_destination : 18|16@1+ (0.1,0) [0|0] "Meters" SENSOR,DRIVER

BO_ 128 MOTOR_DEBUG_MSG: 1 MOTOR 

SG_ MOTOR_DEBUG_MSG_echo_steer : 0|3@1+ (1,-2) [-2|2] "" DBG
SG_ MOTOR_DEBUG_MSG_echo_speed : 3|5@1+ (1,0) [0|31] "RPM" DBG



Sensor ECU

<Picture and link to Gitlab>

Hardware Design

We used 4 Gravity DFRobot URM09 ultrasonic sensors. These ultrasonic sensors are used by the RC car for the purpose of obstacle avoidance. They use I2C communication to send distance data to the SJ2 microcontroller. The measurement range is 300cm. It takes in 3.3V supply voltage. Using the I2C driver the registers on the ultrasonic sensors were configured and the distance was read from the specified registers in the datasheet.



Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>


Motor ECU

<Picture and link to Gitlab>

Hardware Design

Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>


Geographical Controller

<Picture and link to Gitlab>

Hardware Design

Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>

Resources

1. GPGGA Message Definition [5]



Communication Bridge Controller & LCD

<Picture and link to Gitlab>

Hardware Design

Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>


Master Module

<Picture and link to Gitlab>

Hardware Design

Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>


Mobile Application

<Picture and link to Gitlab>

Hardware Design

Software Design

<List the code modules that are being called periodically.>

Technical Challenges

< List of problems and their detailed resolutions>




Conclusion

<Organized summary of the project>

<What did you learn?>

Project Video

Project Source Code

Advise for Future Students

<Bullet points and discussion>

Acknowledgement

References

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