| ??? 12/16/02 01:45 Read: times |
#34498 - help: inteface 8051 to keyboard |
hi there;
i want to design a circuit that will get input from a 16key kepad matrix and based on that entry turn on/off 4 led's . i want to use 8 pins of port P0 to drive both any idea what supplementary hardware is needed? i m primarily interested in how the schematic will look thanks to all ... i am using philips 8051 based chip.. |
| Topic | Author | Date |
| help: inteface 8051 to keyboard | 01/01/70 00:00 | |
| RE: help: inteface 8051 to keyboard | 01/01/70 00:00 | |
| RE: help: inteface 8051 to keyboard | 01/01/70 00:00 | |
| I had a similar project | 01/01/70 00:00 | |
| I had a similar project (continued) | 01/01/70 00:00 | |
RE: I had a similar project (continued) | 01/01/70 00:00 | |
| RE: I had a similar project (continued) | 01/01/70 00:00 | |
| RE: I had a similar project (continued) | 01/01/70 00:00 | |
| RE: I had a similar project | 01/01/70 00:00 |