Status | IN PROGRESS |
Owner | |
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Contributors | |
Approver | |
On this page |
Lights
We will have five peripheral boards for lights in total.
Location:
Front (headlights and turn signals)
Side left (exterior turn signals?
Side right (exterior turn signals?)
Back (exterior brakelight?)
Canopy (brakelight?)
There will be 6 GPIO connectors on the board (4 needed, 2 for backup)
Camera Wiring Design Options (Canopy)
Controls must decide how we want to power the backup camera and 2 blind spot cameras, as well as how to send camera information to show on the display.
Goal is to stream video 20-20 fps
Three options:
Power through ethernet
Power through USB
Power through peripheral boardvery unlikely option
Power through ethernet | Power through USB (Akshay Gaitonde currently researching) | Power through peripheral SOM | |
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How it works |
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(scuffed) general diagram | |||
Pros and cons | Simplicity Keeps peripheral SOM simple Possibly easier for wire harnessing Long ethernet wires New wiring requirements needed Need to purchase/make(?) network switch | Possibly not that much more to be added to peripheral SOM Running video information over CAN is probably a bad idea Board may not be able to supply enough power |
🤯Decision
No final decision yet.
Combining Left/Right Lighting boards
There are lights (internal and external) on the left and right side of the car, in both the front and the back. Controls must decide if we should have four boards for front left, front right, back left, and back right, or just two for front left/right and back left/right
Four boards | Two boards | |
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Overview |
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(scuffed) general diagram | ||
Pros and cons | Not that much different power-wise (i think?) More boards = more expensive More difficult for wire harnessing | Less soldering Less wiring: Eliminates CAN and power wiring between boards Less boards to order and test Longer power wires More complex board: must supply power to both sides + logic to toggle left or right side |
🤯Decision
Yes, we will combine them.
Justification:
Overall wire length is similar (Four wires- only difference is CAN vs GPIO)
GPIO would likely by 12V and therefore will not suffer a large voltage drop while crossing the width of the car
Added capabilities aren’t complex