| ??? 01/14/04 19:37 Read: times |
#62573 - RE: interfacing 4*3 keypad to 8051 Responding to: ???'s previous message |
Yes , Book2 page 782..
The only thing you have to watch is the board layout. They have an article that should be read before making a PCB. It took me 2 trys to get it right.Its very easy to make unintended matrixes. And they do work much better if you connect the noise sync pin to the power supply that you are using ,especially if its near transformer. |
| Topic | Author | Date |
| interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 |