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it depends upon how much current the solenoid will drawmarlep said:I'm doing a school project now that uses an open frame solenoid to automatically open a drawer. I need help for the driver circuit for the solenoid. Can you pls give me some suggestions....
marlep said:the solenoid is an open frame 12V DC solenoid. can u pls give me some specifications and descriptions about the NA51 transistor?
so ur sensor will(should) output 0-5V , connect it to the standard i/p pins (10,11,12,13,15) of the LPT , if u r using dos/linux+c/c++ , an inportb will get the pin status.marlep said:i need some suggestions on how to connect the sensor circuit of my project to the parallel port. The sensor will serve as an input, everytime the sensor is cut, it will update the database. There are 10 sensors.
marlep said:is there a multiplexer that has 10 inputs?