Thread: Sama's ///M3 Convertible Worklog

don't hold your breath, I work slow ;-).

PROGRESS UPDATE...

2. Use a capacitive touchpanel with multitouch

I've found this, which is a 3M MicroTouch driver source code for linux supporting multitouch.

Here's a 7" wide 3M microtouch screen. This can do multitouch and is capacitive, and now with this driver source code it means the driver can be compiled for the specific USB host kernel on the Nexus One. I need to now tie it all up together.

If the screen works (proven that it does already) and multitouch panel works, then the idea ofusing the Nexus One as the carpc will be very real

Originally Posted by sama

If the screen works (proven that it does already) and multitouch panel works, then the idea ofusing the Nexus One as the carpc will be very real

This thought I really like!

more on point 2:

2. Use a capacitive touchpanel with multitouch

This not doable due to physical constraints. The 3M 7" wide panel has an outline of 169.8mm x 108.69mm, and having just taken the board monitor apart, I can see the largest size panel that can be squeezed in there is 159mm x 104mm. That's a difference of 11mm x 5mm. Looks like I'll be using a resistive screen as I've not found anywhere that does 6.5" wide capacitive.

on point 3:

Keep all existing BMW system functions

SUCCESS!!!

[media]http://www.youtube.com/watch?v=WjciymNTaN4[/media]

That's the car's video running on a 17" screen in VGA mode, and the car's original functions are operational using the Board Monitor's buttons. Yay!

update the first post with all my findings so far

I've found a supplier that sells custom size capacitive panels. I'm working with them to produce one that will fit the Board Monitor shell exactly. Problem here is the edge of the active area, it'll be around 2-3mm inactive around the edges, due to the constraints of the shell. I should have tests within the next few weeks to see if this will work.

Originally Posted by sama

I've found a supplier that sells custom size capacitive panels. I'm working with them to produce one that will fit the Board Monitor shell exactly. Problem here is the edge of the active area, it'll be around 2-3mm inactive around the edges, due to the constraints of the shell. I should have tests within the next few weeks to see if this will work.

Hi Sama, what will be actually the final price for this capacitive panels? I would be interesting in that too.

I'm not sure yet as there are tooling charges etc. I'll let you know as soon as I know. It'll be good for you as you'll have much less glare and better optical throughput from your LCD.