I have this project for one of my customers where I need to have a keypad (0-9), '*' and '#' and be able to address via RS485 connected to the computer. The user will enter a number in the keypad and when they hit the "Enter/#" key it will send the code to the RS485 port. I need something like they have at
Can anybody point me in the right direction? I dont come to the newsgroup alot so it would be great if you could also e-mail it to me at firstname.lastname@example.org.