speedometer on TFT LCD with arduino mega 1280 HELP!

Hi I'm new in arduino world. I have an arduino mega 1280, bought recently. I want to buy a 3.2" or 2.8" TFT LCD (with touch screen) but i don't know who works with my arduino. I want to display on this lcd the speed of my car and RPM , so i need a fast refresh (for small areas). I find some models on ebay but please give me an indication who is easy to connect(less wire) and who is easy to develope it. I saw more of them works with ILI93XX or HX8347 IC Driver. Those are what i find: 1. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220693194576&ssPageName=STRK:MEWAX:IT 2. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110639823083&ssPageName=STRK:MEWAX:IT 3. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280558226914&ssPageName=STRK:MEWAX:IT 4. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280575347222&ssPageName=STRK:MEWAX:IT 5. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320606628830&ssPageName=STRK:MEWAX:IT 6. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200475566068&ssPageName=STRK:MEWAX:IT If exists a library for one of them it will be easy for me. Other problem who i have is resolution. All of them(lcd's from links) have 320 on vertical direction , and i need 320 on horizontal direction. It is possible to setup this from code, for this types of tft lcd? Thanks a lot for your helps.

Have a look at the 4Dsystems screens http://www.4dsystems.com.au/, they can be used H or V and only need a serial port to interface.


I believe that 1, 4, 5 and 6 are the same display.

From what I can see they should be compatible with my library: http://www.henningkarlsen.com/electronics/a_l_itdb02_graph16.php


Graynomad - thanks a lot for your time, but i saw thet type of lcd is to expensive.

DOC_Norway - thank you too.this library i knew it but i think it works only i have the itdb20 shield for this lcd, but i don't need it because on my arduino mega i have another 2 lcd 20X4 char , 6 temp sensors , 2 pressure , on db1307 real clock , one light shield. But if you think i can use this library directly with this type of tft lcd , connected on my arduino(after my calculation i need 24 digital pins), it is ok fo me.Do you think can i modify direction 320vertican in horizontal like i need?

Thanks a lot.

My library supports landscape mode (=320x240), but remember that the display operates at 3.3volts, so you need levelshifters for all signal wires.


Hi Thanks henning. I'm the same person who write on email address. I bought the lcd last night from ebay. Please tell me if i put a 10K resistor, like you said, on each pins from lcd to arduino (in serial connection not paralel) it is ok? Thanks again.