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Hi,
From what I gathered I think this is a programmable CD-ROM controller, it can be used outside, not inside a PC tower.
Anyway here is the other part that I done so far..
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Low price, simplicity were the goal of version one, CD-ROM V 2.0 not only based on the same guide line, it also provide an easy and highly expandable platform for the readers or beginners who are learning the single crystal 8051. In terms of the hardware circuit aside from the original CD-ROM control functions users may also develop their own (for instance, LED control, audio source selection, volume control…etc, There are 18 functions developed and many more are work in progress) Simplified features of version 2.0 listed as follows:
1/ power supply of 5V, reverse polarity protection added (I may be wrong on this protection one!)
2/ build in LCD, there are eight 7-SEG display functions, the 16*2 yellow LED back LCD can be connected separately; therefore super thin surface can be used.
3/ interface provided to link up to PC or for error correction formulae, provide more flexibility for certain CPU.
4/ option to have seven push down switches, five are built in, number six and seven are reserved for future use.
5/ addition of 4 screw taped holes for ease of mounting.
The goal of CD-ROM controller by DZ is not limited to karaoke, we look at it as a multi purpose controller, programmable computer, utilize this learning platform to train micro computing, develop this platform into digital volume control, remote signal selector, combine with vacuum tubes to make a self bias system, fun isn’t it? Above photo shown only ten minutes or so C programming needed to modify the software in order to turn the remote controller into a clock with calendar.
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The rest of the artical is just the hardware circuit briefs. like command instructions, pin connections etc, so I would not bother to translate those, ok? I will find it odd that they do not have an english brochure regarding their product.
Chris
