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--Build ypu own projects
  Cross-Cable Network
-Code color
-EIA/TIA 568A STANDARD
-EIA/TIA 568B STANDARD
-For Network Comunication
 
  Universal AT89C2051 Controller Board
-Circuit diagram

-IC AT89C2051 Compatible with MCS51.
-10 Bit A/D Converter.
-LED 7-Segment Driver 8 Digit.
-RS232 Serial Interface.

Electronic Magnetic Card Door
-Introduction.
-Signal from manetic card reader.
-RS232 Serial interface.
-Progarming ic at89c2051
 
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