On robot LCD display
 

Hi
I am thinking of developing an on board display for an FRC robot. It would be sort of a primitive GUI used mainly for advanced autonomous selection, but not limited to it (I am thinking it will probably use an LCD module). I would like to know how this could be done. Would a co processor be needed? if yes, would the vex or mini robot controller do the job (although if I remember right, the mini RC is not allowed as it is over 200$). If a co processor is needed, how would the communication between them be done? (my guess is programming port or multiple analog in/outs). Later on, if a co processor is needed or not, how would I proceed to program the text and menus? will C be enough or is a more advanced language like assembly needed? Would I be able to display graphics or will i be limited to text?

Right now i am less concerned about the wiring, but how I would interface the RC with a display or RC-co processor-display. The display will also have buttons on it for selecting certain options or programs. I am thinking it will be something like this (but a little bigger) or this . If I have a spare pocket pc LCD display, would i be able to use it or will i need one of the above LCD modules?


I know a system like this has been used by team 195 this year, but i didn't get a chance to see it or find any information about it. I would appreciate it if someone from 195 could explain how their system is set up.

I would greatly appreciate any answers I can get for these questions.

David

Re: On robot LCD display
 

Talk to Tom Bottiglieri of team 195. They set up exactly what you're describing on this year's robot using the serial adaptor normally used for the camera.

Re: On robot LCD display
 

I sent Tom from 195 a PM...

I forgot to say this in my post, but i would prefer having the TTL serial port free for the camera. Is it still possible to have a display without using the TTL port?

Re: On robot LCD display
 

The programming port can be used as a 2nd serial port, so yes.

Re: On robot LCD display
 

Also, if you use just a small display such as what is in the old digital clocks it is possible to use 4 digital outputs. The display itself is relatively cheap, we bought the one we used from digikey for a buck or so. It would give feedback. But it would not be anything fancy or nice like i think you are describing. From a simplicity and cost standpoint however i think it would be just as useful.