Controls Lighting Board Requirements (●ˇ∀ˇ●)
Status | In progress |
Owner | @Lucy Xie |
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Contributors | @Madeleine Lee @Zoe Gonzalez @Diya Rajon |
Approver | @Diya Rajon |
On this page |
Lights
We will have five peripheral boards for lights in total.
Location:
Front (headlights and front turn signals)
Side left (side exterior turn signal)
Side right (side exterior turn signal)
Back (exterior back brakelights + turn signals combined)
Canopy (brakelight)
There will be 8 GPIO connectors on the board (4 needed, 4 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 board very 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 | (general wiring, probably not what it would look like in the car) |
| (general wiring, probably not what it would look like in the car) |
Pros and cons | Simplicity Keeps peripheral SOM simple Possibly easier for wire harnessing |
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🤯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 |
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Pros and cons |
🤯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
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