| ??? 04/27/05 06:06 Read: times |
#92418 - 11 terminals! Responding to: ???'s previous message |
Abdul Rehman M.yunus said:
... normally any 4x3 keypad had only 7 pins. True. So the 1st thing you need to do is to identify what the 11 pins actually do! Hopefully, you have some documentation with this keypad to tell you - otherwise you will have to spend some time with a test meter on its resistance setting... (note that the rubber type keypads can have a relatively high 'on' resistance...) Michael's diagram actually shows a 4x4 keypad, but you should easily be able to adapt it by just omitting 1 row or 1 column: http://www.8052.com/forum/read.phtml?id=92415 |
| Topic | Author | Date |
| Conect 4X3 Keypad | 01/01/70 00:00 | |
| Try it like this... | 01/01/70 00:00 | |
| with 11 terminals? | 01/01/70 00:00 | |
11 terminals! | 01/01/70 00:00 |