initial attempt at 2 ToFs

[PaulaScharf]

I disconnected the already installed ToF from the sensor chain and connected it together with another ToF to a senseBox multiplexer-board.

I am not sure if its possible to know beforehand which ToF has which address on the multiplexer. I think it is independent of the connectors on the board.
Will investigate that a bit more, but otherwise we would need a hack for identifying which address is which ToF...

edit:
nvm, I guess I was confused. The address on the multiplexer does in fact depend on the connector

[PaulaScharf]

the senseBox multiplexer is quite big. Adafruit sells a smaller one for example

[PaulaScharf]

I tried to compare implementing the 2 ToFs solution both on the feather s3 and the sensebox s2. I did some speed tests with just the ToFs connected and nothing else. i got the following times:

feather s3:

• run overtaking prediction on both sides: 124ms
• overtaking prediction on one side and the other just distance: 81ms

sensebox s2:

• run overtaking prediction on both sides: 165ms
• overtaking prediction on one side and the other just distance: 98ms

In general the s3 takes 42ms for a single inference while the s2 takes 64ms