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Comma Two Devkit

comma.ai

71–80 of 255 posts

Re: Comma Two Devkit

#71

Can anyone here comment on actually using a Comma product? I don’t even drive a car, but I don’t see why anyone would buy something like this yet. My point being that it’s not full self driving, and frankly its safety is entirely questionable. Self driving is supposed to make driving less stressful, but does having a system like this actually do that? Or does it make you more stressed because you have to be conscious…

I find driving much less fatiguing when using my Eon (the previous iteration of this product). Taking yourself out of the feedback loop of constantly adjusting steering (and gas if in traffic) makes the experience much more relaxing even though you still have to pay full attention. In my experience, OpenPilot is really rock solid in normal highway driving scenarios and there isn't anything stressful about using it. A…

and the vehicle itself

Re: Comma Two Devkit

#73

Earlier quoted context omitted.

Wait wait wait, are you telling me I can actuate the brakes and gas and turn the steering wheel via the CAN bus? So I can realize my dream of turning my car into an RC car just with a Raspberry Pi and a $4 dongle? That is the best news of the year! Which cars have these sorts of actuators? How can I see if mine does?

Yup! https://github.com/commaai/openpilot-tools/raw/master/steer.... If your car is in this list: https://github.com/commaai/openpilot#supported-cars then it definitely works and you can use these tools to control it https://github.com/commaai/openpilot-tools If it's not in that list then the rough heuristic is whether or not your car has some sort of existing driver assist features e.g. Adaptive Cruise Control, Lane…

I love you, this is amazing and I am going to get right on it. Hopefully I won't crash my car in the process.

Re: Comma Two Devkit

#74
Since the website is not clear, here is what it is.

Comma Two is an aftermarket dash cam that adds features like adaptive cruise control, automatic lane centering, and forward collision warning to cars using open source software.

It uses a combination of the dash cam and the vehicle’s built in radar to accomplish this. It is able to control the car and receive its radar data by connecting to the vehicle’s OBD port.

The unit is $1000 and also requires the purchase of a vehicle specific harness for $200.

A list of compatible vehicles can be found here: https://comma.ai/vehicles

The source code that performs the driver assist functionality has to be loaded by the user and is available here: https://github.com/commaai/openpilot

There’s also a “prime” subscription which pays for cell service on an included SIM card and allows you to see video footage or location data from your vehicle remotely.

Re: Comma Two Devkit

#75

Earlier quoted context omitted.

Wait wait wait, are you telling me I can actuate the brakes and gas and turn the steering wheel via the CAN bus? So I can realize my dream of turning my car into an RC car just with a Raspberry Pi and a $4 dongle? That is the best news of the year! Which cars have these sorts of actuators? How can I see if mine does?

Almost any car with drive by wire and/or modern safety features (lane assist, forward crash avoidance, etc) can be controlled (to an extent) via the CANBUS. It’s different for (almost) every car, but you’d be amazed how easy and fun cars are to hack on, as long as you keep it off the streets.

It's definitely lots of fun, but I didn't know it was easy, I thought the CAN bus was read-only. I can't wait to discover what my car supports.

Re: Comma Two Devkit

#76

Comma.ai represents a strange attitude towards life in which you try to turn hard, serious problems (like self-driving), into trivial problems (write some Python and run it on Android phones and plug it into your car!) and try get away with it. It only has a chance of working if you are cool enough in SV such as geohot. I interviewed there once and it was extremely off-putting how clear their demand for fast progress…

Geohot is quite abrasive.

he's quite a character, surely abrasive to some. If you want a sample for yourself:

https://www.youtube.com/watch?v=u-dgbrB7PZU

Re: Comma Two Devkit

#77

Can anyone here comment on actually using a Comma product? I don’t even drive a car, but I don’t see why anyone would buy something like this yet. My point being that it’s not full self driving, and frankly its safety is entirely questionable. Self driving is supposed to make driving less stressful, but does having a system like this actually do that? Or does it make you more stressed because you have to be conscious…

I find driving much less fatiguing when using my Eon (the previous iteration of this product). Taking yourself out of the feedback loop of constantly adjusting steering (and gas if in traffic) makes the experience much more relaxing even though you still have to pay full attention. In my experience, OpenPilot is really rock solid in normal highway driving scenarios and there isn't anything stressful about using it. A…

Thanks for the perspective.

Do you happen to know what the hardware safety is like? Just curious.

Re: Comma Two Devkit

#78

Earlier quoted context omitted.

Source (i assume you read the source code and know where these checks are)?

https://github.com/commaai/openpilot/blob/a2ae18d1dbd1e59c38...

This was harder to find but this is where caps for steering are set in OpenPilot:

https://github.com/commaai/openpilot/blob/a2ae18d1dbd1e59c38...

Re: Comma Two Devkit

#79

Comma.ai represents a strange attitude towards life in which you try to turn hard, serious problems (like self-driving), into trivial problems (write some Python and run it on Android phones and plug it into your car!) and try get away with it. It only has a chance of working if you are cool enough in SV such as geohot. I interviewed there once and it was extremely off-putting how clear their demand for fast progress…

When did Comma.ai claim they were doing self-driving?

Re: Comma Two Devkit

#80

Earlier quoted context omitted.

https://github.com/commaai/openpilot/blob/a2ae18d1dbd1e59c38...

This was harder to find but this is where caps for steering are set in OpenPilot: https://github.com/commaai/openpilot/blob/a2ae18d1dbd1e59c38...

Last but not least, here is brake and gas limiting:

https://github.com/commaai/openpilot/blob/a2ae18d1dbd1e59c38...

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