http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-08T06:16:29-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 hi friendshere is my most wanted 4x3key board pcb i have used 4 pin micro switch commonly use in tv etc.you can download it from here http://www.geocities.com/tpsbpl/keypad.zip http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay wow.. this is a nice share.. thank you TPS. i am going to host your file on my server in the circuits section thanks again http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ welcome dear, i will soon post traffic signal project' PCBthanx all for great support http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay thank you.. for your contribution i will add a direct submit area.. where user can directly post their work... but it will be first reviewed by the admin http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ download its pdf file 1188558933_2712_FT1497_keypad.pdf http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay add the top text layer too.. so easy to assemble the PCB and.. which software you use for PCB design? http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ well i use Express PCB http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ keypad silk screen 1188588153_2712_FT1497_ketpad_silk.pdf http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay great.. i will combine both and put it in the download area http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay can you please provide a schematic for 4x4 keypad using same 4 pin switches!? waiting for reply.. http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ schematic or PCB? http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay a schematic... just put in image format.. (small size image format) http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay we are already having a talk about it.. so we discuss it there only..but don't forget the schematic of keyboard http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ ok i will do what about function generator? http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay I thought its going to be an orcad schematic lol! thank you anyways i will post my orcad schematic can you just revise it and tell me if i made the connections right or not!! http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ well i dont follow orcad SW ,you dont believe i prefer to use MS paintto draw schematic http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay I think i made it correct but i want someone to review it http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 ۞ TPS ۞ if you have considered pin no 1-2 and 3-4 of 4-pin micro-switch as internally short circuited pin then congrats this schematic is 100% correct http://www.8051projects.net/forum-t1497.html 2009-01-08T06:16:29-08:00 Ajay yeeppee thank you for reviewing it.. making this schematic was a small guess keeping your MS paint schematic in mind lol!