Purchase Advice: LCD for Displaying Propeller Output
Hello,
So I'm looking to purchase an LCD that will allow me to display output from the Propeller chip. What I currently have is the 4x20 LCD display by Parallax and, although it works just fine, the display area is quite limiting for my application. Thus, I'm looking for suggestions from people who've used and had success with other larger LCD displays. Since the 4x20 LCD display I have uses serial communication, that is what I'm familiar with. From what I understand, there are also other object files available for VGA communication (VGA.spin, VGA_HiRes_Text.spin, VGA_Text.spin, etc.). How much more difficult is it to interface with VGA instead of simple serial? Are there any additional difficulties you guys have encountered? Ideally, I feel I may be more comfortable sticking to a serial-based LCD display, however I am open to VGA if it doesn't represent too much extra fiddling around with. A color display would be nice, but black and white only would work just fine as well (that's just me being picky). Also, keeping the price reasonable is always nice
.
Any input is appreciated. Thanks!
So I'm looking to purchase an LCD that will allow me to display output from the Propeller chip. What I currently have is the 4x20 LCD display by Parallax and, although it works just fine, the display area is quite limiting for my application. Thus, I'm looking for suggestions from people who've used and had success with other larger LCD displays. Since the 4x20 LCD display I have uses serial communication, that is what I'm familiar with. From what I understand, there are also other object files available for VGA communication (VGA.spin, VGA_HiRes_Text.spin, VGA_Text.spin, etc.). How much more difficult is it to interface with VGA instead of simple serial? Are there any additional difficulties you guys have encountered? Ideally, I feel I may be more comfortable sticking to a serial-based LCD display, however I am open to VGA if it doesn't represent too much extra fiddling around with. A color display would be nice, but black and white only would work just fine as well (that's just me being picky). Also, keeping the price reasonable is always nice
![smile.gif](http://forums.parallax.com/images/smilies/smile.gif)
Any input is appreciated. Thanks!
Comments
It is really to work with using the tv_text driver. You can just choose what characters you want where and there are routines for displaying numbers and strings as well. There is also the graphics driver if you want more than text although that uses most of the memory.
And Steven,·would you mind linking me or giving me the model of the 7 inch LCD you bought?·Also, is there·a reason to choose PAL over NTSC, or vice versa? Any implementation differences?
Thanks!
For VGA you just need 8 resistors. Have a look at the demo board schematic. It has everything you need.
with Prop composite. http://tinyurl.com/3nkcfn
There's a link on my page to the instructions. Win
EDIT: Works from a different PC. Thanks.
Post Edited (Beanie2k) : 4/15/2008 2:29:10 PM GMT
Steven
By the way, the audio portion of the monitor hack works too, so you get audio and video
from this thing. Win
www.orrtech.net/propeller/cyberhomedvdplayer.html
I don't think geeks has the cyberhome player in stock, but they are
widely available on eBay.
OBC
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