The low tech solution on my wife's Ford Explorer is a box over the mirror with a big button that operates the controller inside mechanically. The opener is velcro'd in place. Works fine. John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 johnferrell@earthlink.net Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" ----- Original Message ----- From: "Robert Ussery" To: Sent: Wednesday, July 16, 2003 11:34 PM Subject: [OT]: Raynor garage door opener protocol Hi, all. I'm getting mighty sick of my garage door opener falling off of my visor, so I decided to build it into my Miata's panel. One problem: the remote costs ~$50, so I don't want to mess with it, especially since I think I can build one for a couple bucks. I opened the remote up, and it has a really simple circuit with one IC, a bunch of resistors, a couple of capacitors, and two inductors. The main problem is that I have little or no experience in RF design, and no knowledge of Raynor's RF signal format (proprietary?), so I don't know exactly what the IC does. I think it's a Raynor chip (it has a big R on it, and it says "125CO218" and below that "981864"), but I'm hoping that it has some commercially available equivalent. Guesses, anyone? One other thing... I don't see any means of tuning the transmitter (like on an Overhead Door garage door I had a while back had a bunch of DIP switches), except that it has a variable inductor on it. How can I make sure that a different remote (either a commercial one, or a home-built) will work with my door? Thanx! - Robert www.geocities.com/uavbob -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics