Post by thread:Magnetic Card readers & PIC's

> I'm trying to design a keyless entry system using a magnetic card > reader. Has anyone out there done this using any of the PIC's? If so > which one and which card reader? Also what problems might I encounter > along the way. If your card-reader is RS232, it won't be a problem because there is lots of RS232 code around. Since it looks like you're still trying to pic (pun definately intended) one out, then look for RS232 type readers. I have NOT done this but it sounds pretty straight-forward. One thing that I CAN think of is - where are you going to store the card numbers? You could hard-code them into the PIC and re-program (use a UV erasable) them when needed. Or, you could have an external memory chip to keep the data in. Or, you could have all of them transmit back to a host computer. If you are interested in the latter, we might be able to put something together for you to do RS232 from the reader, and then have the info. transmitted back to the host over an RS232-BUS. Write us back if you're interested and we'll talk about the details. ***************************************************************************** * Paul Greenwood -> -> -> -> -> -> -> Custom Hardware Engineering * *---------------------------------------------------------------------------* * "Any sufficiently advanced technology is indistinguishable from MAGIC." * * - Arthur C. Clarke * *****************************************************************************