He's chillin' with Jam Master B from anywhere in his house, thanks to a Palm Pilot equipped with a radio frequency transmitter that allows him to operate his PC-based MP3 player remotely from up to 100 ft away. An RF receiver connected to the PC acquires Steve's selections from a database of 4,700 works. To keep sound quality high, Steve encoded the music with a high bit rate and connected the sound card to his stereo amplifier via a digital link.
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Are you a Gadget Freak? Allied Electronics would like to send you on a shopping spree of up to $500 on its website at www.alliedelec.com/gf.asp. E-mail Design News your proposed project (must incorporate electronic components and involve sensing, motion, timing, or networking elements) to [email protected], along with a description of how it works, and a parts list.
If your project is selected, you'll receive the shopping trip of up to $500 and be featured in an upcoming edition of Design News.
|PDA-based mp3 remote control system Parts List|
|Amt||Part Description||Allied Part #|
|1||2.0 MHz Cystal MP020||745-0114|
|1||9V ac Wall-mtd Transformer||928-9898|
|1||44 Pin PLCC Socket||978-2210|
|1||1.2V NiCd Battery||884-1017|
|1||Dual D Flip-Flop||263-2828|
|Additional parts required: Transmitter and receiver modules; CPLD IC; RS232 level converter; Voltage Regulator IC; 8-bit CMOS counter IC; 4.7 muH SMT inductor; Steve's software.