darkness.signals Posted July 31, 2012 Report Share Posted July 31, 2012 hi every body...can any one give me schematic of this type of remote key fob?these remote r contained of:----------transistor:m63emr25-------micro:pic12f629-------12v battery(27a)-------and so many resistors and capacitors-------i did reverse Engineering on these circuit & found out m6 is a voltage regulator,3em & r25 r high Frequence transistor for rf application.i found out there r 2 radio circuit ,r25 circuit which is connected to pin 4 of 12f629 and 3em circuit which is connected to pin 3 of 12f629.i cant understand relation between these to circuit.this is so confusing!i know these type of circuit managed by tow pin of micro.first pin is names "boost" and second pin is named "pulse". i have more info about that if any one wants to know.and there is a interesting way to copying these remote which the main course of this project!im waiting for your corporation my friends. Quote Link to comment Share on other sites More sharing options...
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