No doubt, there are many different type of design will work and all suit your need. It doesn't have to be always one way, or the other. Our experience shows, the Pogo pin does provide a good contact at all situation in the lab and manufacturing environment. And it doesn't require gold plated circuit board due to its shape and spring loaded structure. Funny N. Au Group Electronics, http://www.AuElectronics.com http://www.AuElectronics.com/products http://augroups.blogspot.com/ ________________________________ From: Terry Harris To: Microcontroller discussion list - Public. Sent: Friday, August 21, 2009 9:47:58 AM Subject: Re: [EE] Pogo pin programming for PIC and ATMEL mcu. On Fri, 21 Aug 2009 05:42:00 -0700 (PDT), you wrote: >We have just released a video on how to use pogo pins to program circuit board without extra cost to the circuit boards: For handheld application like in the video I just don't see any advantage over a 5 way 25' square pin strip (preferably with pins about 1" long). No harder to locate than the pogo pins and the pins go into the holes which hold it in position better. Let go of the pogo pins and it just falls off, let go of a pin strip and the chances are it will stay in the holes. Slight sideways pressure at the top of the pin strip holds it in position and the sharp corners of the pins bite into top and bottom edges of the pads for excellent contact. Long pins allow the pins to flex a little ensuring each pin applies pressure to its contact points. The only possible problem is having something metallic under the PCB which the pins could short on. I have used .1" pin strip stuck straight in the end of a PICKit2. If the PCB is held vertically the weight of the PICKit2 provides enough 'sideways' pressure so you don't even have to hold it. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist