Scratch Build – In Progress Monster of communication (mouse mod, upd. 13/02)

Sorry my bad English, I'm from xUSSR.

One year ago I build a very small custom case for my computer. It has only 4 USB ports.
On the table I have the USB hub and a lot of USB devices. A large garland
I want to reduce the count of these devices and some of them I want to put inside the mouse.
I modding the mouse at the first time, so I took an old A4 Office 8K.
Why old?
In our country we say - "You must train first on cats !' (а потом уже грабь корованы).



Thus inside the mice will be several devices :
1st - the same USB hub
2nd - IR-receiver and/or an additional 4 programmable keys
third - micro-SD card reader or a little bluetooth dongle ( I do not know yet what is more important)
and the fourth - a graphical LCD display with 176 x 132 pixels

As a result, my mouse will be showing a movie (maybe ), understand additional commands and communicate with the computer.

 

USB hub

 

USB LCD (schematic)



........ ..............

and settings of email informer :
........

 

Current consumption :

hub = 70mA
hub + mouse = 90/110mA (idle/work)
hub + mouse + IR-receiver = 95/115mA
hub + mouse + IR-receiver + LCD = 280/300mA



hub is connected via a 0.1 ohm resistor
voltmeter measures the voltage on this resistor
so, I(mA) = U(mV)/0,1

 

Ha! Cool! Wanna see how this turns out, LCD in mouse? Great!

 

I wanna see the cat first.

 

This is a joke from an old Soviet movie.
Three men wanted to rob the store.
One of these trains put to sleep guard with chloroform.
But first try to check it out on his partner.
But the partner said "You're crazy? Come train on cats!"
from 2:20

some photos

 

New "brains" for LCD



Data-cable from UPS with small USB-RS232 adapter
DC 12volt for LCD backlight (shown in the pic)



Slightly cut the left side

 

Was just a joke

 

replaced cable on RS232-adapter





and connect LCD to the board

 

wow, can't wait to see this finished.

 

Wake up, Neo...
The Matrix has you ...

 

it lookes amazing, waiting news

 

ok, news...

PC remote control and USB-keyboard emulator (4 keys).
I use an inexpensive China's kit :



disassembled receiver



functional diagram of RC & k/b-emulator :



logic analyzer connected to the receiver and demonstrated these diagrams





now it remains to repeat these codes using a microcontroller

 

Holy modman...talk about LOSIAS!

 

circuit for 4 additional buttons



PIC12F629 soldered on the board near LCD-controller



now I write code for PIC...

 

Such impressive work. Why doesn't this build have more replies? Great work!

 

Because its to complicated?

 

Because we are too busy wiping up drool, or buying new keyboards cause they got shorted out.

 

very cool ,nice use of space...