i have rfid reader scant documentation. has wires hanging out , come connector "+12v", "gnd", "nc" , "com" (or cdm) , "no", "sw", "d0" , "d1" pins.
i don't know "+12v" , "gnd" voltage , ground. d0 , d1 i2c communication.
the unit works fine (beeps while reading rfid card etc) i'd info of cards laptop using serial (com) port. don't want damage serial port of laptop. how go trying receive data rfid reader. can try on windows xp laptop expendable.
my guess connect d0 , d1 serial port pins connect? voltage? familiar rx , tx port usage. want know can data off rfid reader , if i'll write more robust com send/receive c program.
well you'll first need make rs232 connector. pins follows:
+12v: hot voltage supply gnd: ground
^^connect power 12v power supply.
nc: closed com: common no: open sw: switch d0: data 0 d1: data 1
there should @ least documentation device pins communicate. rs232 9 pin wiring see should solder where.
then you'll need serial communication program can send or @ least receive communications device. putty best bet.
Comments
Post a Comment