| connecting a keypad . HOW? | | 01/01/70 00:00 |
| Because... | | 01/01/70 00:00 |
| How many times will this come up? | | 01/01/70 00:00 |
| To be fair | | 01/01/70 00:00 |
| Help him! | | 01/01/70 00:00 |
| OK ... but just this once! | | 01/01/70 00:00 |
| it's quite simple ... therein lies the beauty. | | 01/01/70 00:00 |
| In minute detail | | 01/01/70 00:00 |
| Credit goes to original author Michael Karas | | 01/01/70 00:00 |
| Yes - Credit to Michael Karas | | 01/01/70 00:00 |
| Diodes prevent \"ghosting\" | | 01/01/70 00:00 |
| indeed, but rarely needed | | 01/01/70 00:00 |
| Think of a piano, where each key counts... | | 01/01/70 00:00 |
| How often do you intend to use multiple keys? | | 01/01/70 00:00 |
| There is the case of... | | 01/01/70 00:00 |
| True, but how often? | | 01/01/70 00:00 |
| Agreed | | 01/01/70 00:00 |
| general input | | 01/01/70 00:00 |
| I agree, but... | | 01/01/70 00:00 |
| a small catch | | 01/01/70 00:00 |
| In this case, the pullups were external | | 01/01/70 00:00 |
| HUH???? | | 01/01/70 00:00 |
| Sorry, I should have said you must not ... | | 01/01/70 00:00 |
| just visualize | | 01/01/70 00:00 |
| It happens all the time ... | | 01/01/70 00:00 |
| current limits | | 01/01/70 00:00 |
| transistors open won't conduct | | 01/01/70 00:00 |
| Totally unsuited with push/pulls, unless... | | 01/01/70 00:00 |
| This is true, which is why one should READ first | | 01/01/70 00:00 |
| there is no reason, but 'linear thinking' (outputs | | 01/01/70 00:00 |
| Some encoders "see" pretty high impedances | | 01/01/70 00:00 |
| cruel and unusual | | 01/01/70 00:00 |
| No! | | 01/01/70 00:00 |
| OK, rephrase | | 01/01/70 00:00 |
Ah, sorry! | | 01/01/70 00:00 |
| Benefit of additional pull-ups | | 01/01/70 00:00 |
| Disappearing Original Post! | | 01/01/70 00:00 |
| that is not all that is missing! | | 01/01/70 00:00 |
| Bug | | 01/01/70 00:00 |
| Bugs | | 01/01/70 00:00 |
| OOps | | 01/01/70 00:00 |
