How to compare strings/array? RFID Project

[Ioannis]

I wonder why you send the uOLED data 2 or 3 times in a loop.

Ioannis

[RFEFX]

In another post someone stated about lag issues with this particular uOLED from 4Dsystems They introduced Pauses, but i found out (through trial and error) that just sending the data a couple times in a loop (refreshing) rather than putting pauses in the the display code resolved any Lag issues. As you can see in the video it displays what im sending
to the display quite nicely and even before the RFID LED can change color.. I also dont read any ACK from the display, as it is not necessary and just slows down the process.

Cheers!

[Ioannis]

I see. OK, thanks.

What is you opinion about the display? (colors, brightness, sharpness).

Ioannis

[RFEFX]

Overall the display is great. you have full control over any text you send to the display: positioning (x,y), Color(msb:lsb), and even font size. you can even make custom bit mapped color characters and store them on a uSD card. Or even tell the uSD to run a script.

cmd,column,row,font,Color(msb:lsb),“string”,Termin ator ($00)

My next goal is to have the PIC play a video from the uSD card. the only obsticle i see is you have to know a lot of information about memory structure, like sectors and such, to address the uSD card. here is the video command info:

Command ext_cmd, cmd, x,y,width, height, colourMode, delay, frames(msb:lsb), SectorAdd(hi:mid:lo)

- ext_cmd 40(hex) or @(ascii) : Extended Command header byte
- cmd 56(hex) or V(ascii) : Command header byte
- x : Video horizontal start position (top left corner).
- y : Video vertical start position (top left corner).
- Width: Horizontal size of the video-animation.
- Height: Vertical size of the video-animation.
- ColourMode 08(hex) : 256 colour mode, 8bits/1byte per pixel. 10(hex) : 65K colour mode, 16b/2B per pixel .
- Delay : 1 byte inter-frame delay in milliseconds.
- Frames: 2 bytes (big endian) total frame count in the video-animation clip.
- SectorAdd : 3 bytes (big endian) sector address of a previously stored videoclip that is about to be displayed.

[Ioannis]

From the pdf that are available, I could not find the specs for the video files.

What files the LCD can play?

Ioannis

[RFEFX]

Hey Ioannis,

I got video to play on the display from the PIC..

once i get the project up and complete ill write a tutorial on the process.

[Ioannis]

Okie, looking forward...

Ioannis