A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
Pocket PC challenge
Do you remember the old pocket PCs like the SHARP PC-1500, PC-1600 etc.? A small plastic brick with an ASCII keyboard and simple LCD.
I'm looking at the pictures of HP-85 and such handhelds and I'm saying: It should be a piece of cake to build such device nowadays... So - why not? Let's build!
Of course, not really in a "pocket size". But - think: The technology is a far away than back in the 80's. Two-lines LCD is as cheap as one burger (with a diet coke, maybe). Our microcontrollers can EMULATE the CPUs used in these computers in a real time... So it should be easy to build your own "pocket PC" - the tiny computer with very simillar parameters.
Let's look at the typical Pocket PC -: Z80-based CPU, 16-80kB of RAM, tiny graphic display, programmed in BASIC. It have to be a "few weekends project"!
I think it's possible to build contemporary homebrew "Pocket PC clone" - such as graphic LCD in the tiny PS/2 keyboard, powered with a small AVR/ARM/PIC/whatever. I plan to build my own, just for fun and test my programming skills (the BASIC interpreter should be the greatest part of it).
Anyone wanna try to build such device? ;)
Here are some links for inspiration: