Hi. I need help and pointers with how to build a simple device, similar to a phone, with a simple touchscreen, and by tapping something on the touchscreen, you could activate a walkie-talkie with witch to communicate with whoever had the other walkie-talkie. Help?

 

I'd stay away from witches if I were you

 

There is nothing simple about this project. You can buy a pair of Family Radio Service WalkieTalkies for a few $, so why bother

 

I have to agree with " MikeML" on this one !
Otherwise, if you both have "SMARTPHONES" try "Skype" or one of the several other "Walkie-Talkie" emulator APP's that are available.
OR , you both could get your "HAM" licenses and open up a whole new world of possibility's.

 

I'd stay away from witches if I were you

You're a funny guy...

 

Actually, my project was originally to build a simple cordless phone...

 

And I don't mind how hard or complicated it is...

 

Have you ever worked with RF circuits? Crystal Oscillators, Superheterodyne receivers, Modulators, detectors, antennas, etc, etc. If not, you have a huge learning curve.

 

actually, I have....

 

My cordless phone just died due to a squirrel on the transformer in the alley, a new one was only 9.95 at wallyworld. can you beat that price for a phone with quite a few features?

 

This sounds like a school project/assignment. If it is, what are the rules; can you use an off the shelf transceiver and couple it with an Arduino microcontroller and touch screen shield?

 

Did you work on something simpler before like IR receiver and transmitter? You do realise that you are making a huge leap forward and that its fairly complex project?

 

The harder part of the project would be a micro controller displaying the information and sensing the touch on the screen. Many of the PIC micros are capable of this.