Guide Make your own USB LCD controller!

Hi
My display is actually a 4x20 my mistake sorry
I will shorten the cables and report back

Thank you for your help

Edit:
I’ve now shorted the cable and no change
Here’s a picture of it not working


Any help will be most appreciated

Edit 2:
I’ve tested the LCD with a parallel lead I made and it works fine, it must be something to do with the circuit that I’ve made but what?

Edit 3:
YES YES
It lives!!
The LCD now works perfectly

The problem with it was the board I had soldered the RW and EN together by accident (Sorry for my incompetence)
Thanks for all the help guys

Edit 4:
Here’s the picture of it working



By the way is it possible to have a copy of the source code for this, as I want to add temperature sensors to control a fan

Edit 5:
I’ve encountered an issue with the unit. When I put the pc to sleep and wake it up the display will not function. If I close LCDsmartie before standby then & open after the system wakes up it works. So my question is can I get windows to shutdown LCDsmartie before sleep and run LCDsmartie after wakeup. Or another solution may be if the unit is never powered down during the pc's sleep i.e. it is powered independently (power hub?)

Thanks for your help

 

nice to hear that you got it working.

its allways good to see pics of the finished product so once its finished post up some pics please

Scorpia

 

Hi!

There is a way to use this with a 128x64 Graphical LCD?

[]'s
Ismael

 

Good job error2061! (and scorpia, erik - ever helpful!)

Ismael: No. Read the thread.

 

Hello, this is my controller, it works fine Very nice work!

 

I just got this baby to work..was quite easy!

But i was wondering if its possible to get the sourcecode for it somehow?
It doesnt matter if its messy code..im a messy coder myself

Cheers!

 

Source code is going to be made public quite soon

Good work Guiss, I'm glad it works for you!

 

Thank you, you've done a great job!!

 

Well this thread has certainly made a good read Thanks to all you lads who have contributed - especially ch424 and Scorpia.

I might just give this a crack some time soon. If anyone's interested, there are a few of these PICs going cheap on the bay: http://cgi.ebay.co.uk/ws/eBayISAPI....m=160285383992&ssPageName=STRK:MEBI:IT&ih=006

MGT

 

Very impressive work here!

 

Has anyone managed to make the Microchip USB CDC work with Vista Ultimate 64 SP1?

I have tried the before mentioned drivers from the obddiag page as per scorpia's post but after installing them Vista reports "This device cannot start. (Code 10)"
and also in properties>details>install error: "There is no driver selected for the device information set or element. E0000203"
Microchip's last published driver isn't helpful when it comes to Vista 64 either.

I really hope that you have some solutions up your sleeves.
Thanks for reading,
Caesar.

PS: works fine in XP though but it's not an option.

 

Hi!
I wily need replacement for J2. Any suggestions or propositions? I can’t buy it in Poland. Pleas help me.

 

i make it but it dont work properly. i am using 4x20 lcd. When i type in each row of LCDSmartie www.bit-tech.net i get this

what could be wrong
PLEASE HELP

 

gsila, you will need to check the cables to the LCD and make sure they are not too long.
Or edit the source code and put some nop's in the LCD writing routine.

 

i have just a pin header from control board to lcd

 

now it works properly
display plugin settings were wrong i set crystal.dll instead matrix.dll

 

Just a quick note...with permission from ch424, I will be making the source code available to those that would like it (links coming soon). There will be different versions...one for the rotary encoder and one for the buttons. If time permits, I will compile hex for the different microcontrollers that are mentioned in this thread. If there is anything else wanted/needed (as far as the source code), please let me know.

Erik

 

Atmega 8 or similar would be great if possible cause its 1/3 the price of the 18F2550 btw. And some more GPOS or keypad support would be very nice also.

 

I have only dealt with the PIC...sorry no Atmega from me.

I have a version that has support for 5 buttons. Would that work for the keypad? Only slight modification from the rotary encoder hardware.

Erik

 

So, still no Vista 64bit users?