Controls Lighting Board Requirements (●ˇ∀ˇ●)

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

	Power through ethernet	Power through USB (@Akshay Gaitonde currently researching)	Power through peripheral SOM
How it works	Ethernet will allow us to send data and power the cameras at the same time Information travels from camera(s) to a network switch, which connects to raspberry pi, which connects to display Network switch is essentially a mux that can choose which camera’s stream information to send		Add power breakouts to peripheral board to supply power to cameras Send information through CAN?
(scuffed) general diagram	Open (general wiring, probably not what it would look like in the car)		Open (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

🤯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

🤯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