Sure Electronics new 32x16 bi-color display: 3216 RG

tdg8934

Here is my contribution for Sure Electronics new display (see attached).

tdg8934

Here is the latest. See picture and SX/B code attachments.

tdg8934

Arduino code for a 2 display setup. Possible bug.

tdg8934

Fixed Arduino code for (2) 3 color displays. Green, Red, Orange, etc.

See this link for more details: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1292604415/45

tdg8934

Found a multiple display bug and fixed it. It is now ready for any number of multiple displays (although only tested on 2 at the moment).

tdg8934

HT1632_2.zip

Updated code for the Arduino - with Scrolling (1/9/2011).

tdg8934

Updated Arduino code for 4 displays. Not quite working yet.

tdg8934

Updated Arduino code for 4 displays. Working but showing some random pixels in last column of quadrant 2 of displays 3 and 4. (Displays 1 and 2 do not show random pixels). See attachment.

tdg8934

Updated WORKING Arduino code for (4) 3216 RG displays.

tdg8934

Here is another test to remove the DigitalWriteFast library and access the pins with direct port access. I did not see too much improvement in speed. It was still about the same which was reasonable but I would still like to see a faster scroll.

tdg8934

Here is the latest ported to a Teensy++2.0 (www.pjrc.com/teensy) for 8 displays. YouTube video also: http://www.youtube.com/watch?v=TqZTBoepZsY

tdg8934

Here is the latest Arduino (actually Teensy++ 2.0) code showing the display with a PS2 Keyboard for data entry. My C coding could have been better but I am learning and it works so I'm happy about that. What I need help in is C coding for changing colors per letter, word, etc. as I am getting stuck. Also use of the backspace key would be helpfull. Ultimately, it would be nice to be able to Save the message into the EEPROM.

kjus

Hi,

I've been trying to improve the speed of this display. Here is a version based in HT1632_7.zip which is roughly 50% faster (depending on the "workload" ).
The two main improvements are faster write functions (I just removed a couple of checks..), and updating each color plane only if necessary (as opposed to updating both red and green pixels, if any of them changed).

I'm also preparing another version which is roughly 3x faster, on the worst workloads (i.e. updating each pixel of the screen at each frame). It achieves 50fps in the worst case (with two 3216 displays). I'll post it in a few days...

Publison

I'm not sure why you are still posting here in the SX forum. What does Arduino have to do with Parallax products?

kjus wrote: »

Hi,

I've been trying to improve the speed of this display. Here is a version based in HT1632_7.zip which is roughly 50% faster (depending on the "workload" ).
The two main improvements are faster write functions (I just removed a couple of checks..), and updating each color plane only if necessary (as opposed to updating both red and green pixels, if any of them changed).

I'm also preparing another version which is roughly 3x faster, on the worst workloads (i.e. updating each pixel of the screen at each frame). It achieves 50fps in the worst case (with two 3216 displays). I'll post it in a few days...

kjus

Fair enough. Let's continue the discussion on the right forum:
http://arduino.cc/forum/index.php/topic,50326.0.html

Publison

I just thought these posts were not getting to the intended audience.

It's a bunch of good work.

kjus wrote: »

Fair enough. Let's continue the discussion on the right forum:
http://arduino.cc/forum/index.php/topic,50326.0.html

tdg8934

That's my fault about that. I have been a Parallax SX-28/48 programmer for years and initially started to write code for it but the Arduino drew interest and I continued from there on the Arduino forums. However, I could not find out how to save attachments on the Arduino forums so I continued to use the SX forum since the SX products were obsolete and I knew I would come back to the SX to re-write it on that in SX/B once solid code was ready on the Arduino. I guess I lost track of that with loosing my job a few weeks ago.

Tim