| ??? 05/16/05 10:49 Read: times |
#93483 - 1K to 2.2K are good values Responding to: ???'s previous message |
Using a pullup of 1K to 2.2K or so is a good value for when a mechanical switch is used directly at the port pins as an input. This size of resistor lets a few millamperes flow through the switch and keeps its contacts clean.
Michael Karas |
| Topic | Author | Date |
| typical pull up for P3? | 01/01/70 00:00 | |
| 1K to 2.2K are good values | 01/01/70 00:00 | |
| Mechanical switches need minimum current | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| Dry loads | 01/01/70 00:00 | |
| P3 don't need pull ups. | 01/01/70 00:00 | |
| Misunderstanding! | 01/01/70 00:00 | |
| 1K is stronger not weaker. | 01/01/70 00:00 | |
| Switch Configuration !!! | 01/01/70 00:00 | |
| Thanx | 01/01/70 00:00 | |
| Why 1k? | 01/01/70 00:00 | |
because | 01/01/70 00:00 | |
| A Correction! | 01/01/70 00:00 |