Simply LCD USB connect based on FTDI chip

[Stax]

work 4x40 display?

[mattcro]

This can only currently control up to 4x20 displays. To make it work with a 4x40 display you need to modify the driver plugin to provide 2 Enable outputs for the 2 controllers on the 4x40 modules. There is a spare control pin on the FTDI modules (D7) which could be used for the LCD E2 pin.

Nick_Shl has posted the source code for this driver, so anyone who can write a C DLL is welcome to have a go at modifying the driver.

[radioman193]

all good if you have HALF a dislpay........

what would one do for a 40x4 ?

[mattcro]

If you're feeling a bit more ambitious with electronics (PIC micro and USB), you can try caesar's 4x40 controller project: http://forums.lcdsmartie.org/viewtopic.php?f=11&t=833

You can also try the LCD2USB controller, which I think is available as a kit or ready-built: http://www.harbaum.org/till/lcd2usb/index.shtml

[lucas_siglo21]

well, i have made my own version of this, i made a custom pcb for the ft232r, i put a connector for the lcd, so i can change it. it looks pretty nice i think, and works perfect.









i have uploaded the PCB here: http://www.mediafire.com/?qkc1t020w0mmg7y
it's for proteus 7.8.

and, you can see the rest of the pictures in my blog: http://elcoyotequesuelda.blogspot.com/

[Agente98]

[miss_loud]

Hi,
can somebody identify the plugin (afaik is it not BigNum) used in the following picture:



I love the font! It would help me very much...

Thanks in advance!

miss_loud

[Stax]

Display Futaba M204SD01AA and FTDI-UM245R

Please How to connect wire?


Classic LCD works....



Datasheet M204SD01AA http://www.pdfdoc.ru/optoelectronics-an ... ion-manual

[evrey]

Good day! I have assembled device FT232BM + LCD. The device works with the program LCDMonitor3. But I want to try LCDSmarie. I saw your scheme. My and your schemes are similar. But there are differences. I edited the ini file to my schema. But it did not work with LCDSmartie.
My scheme:
My configuration would be:
[HARDWARE]
D4=4
D5=5
D6=6
D7=7
E=0
RW=-1
A0=2
Can you help me? Transform plugin for my circuit? My device is already installed in the computer. I do not want to redo it.
I will be very grateful!

[Guest]

not sure i'll get an answer since this forum appears to be dead, but i'll ask anyway:

i have a HD44780 (white text, blue backlight) with FTD232RL. works perfectly with this dll, but when text is scrolling its a bit difficult to see the text as it goes from white to slightly darker color (almost like inverse color). when the text is not scrolling it is perfectly clear. anyway to solve this so the test remain solid white while scrolling?

thanks.

[dperrow]

Not dead mate, just not too active at the moment.

Anyway, I think the scrolling is done in the hardware. You could try one of the plugins that does the scroll in software although it might not be as smooth. E.g. Holdnscroll.

[dperrow]

Search for scroll from the board index

[lucas_siglo21]

not sure i'll get an answer since this forum appears to be dead, but i'll ask anyway:

i have a HD44780 (white text, blue backlight) with FTD232RL. works perfectly with this dll, but when text is scrolling its a bit difficult to see the text as it goes from white to slightly darker color (almost like inverse color). when the text is not scrolling it is perfectly clear. anyway to solve this so the test remain solid white while scrolling?

thanks.

i'm pretty sure you need to decrease the contrast changing the voltage to pin 3(turn the contrast pot)

[lucas_siglo21]

BTW when i upgraded to win 8.1 this FTDI solution stopped working correctly, random chars were appearing at random times, like once every 5-10 seconds..no idea why, and this only happened on my main computer, i connected my LCD thing to my laptop with the same software and libraries which is also running win8.1 and it worked ok, go figure..

so now i'm using an arduino to emulate the matrix orbital protocol via the arduino serial/USB port and drive the LCD..nowadays the prices of the arduinos are crazy low with all the chinese clones.

[dperrow]

I had no way to connect a parallel LCD to a new motherboard and windows 10 so did the same thing and put in an Arduino to emulate. It's been there so long I can't remember whether it was an UNO or something else but it's been a few years on the go now with no problems.