| ??? 04/13/07 07:47 Read: times |
#137123 - App Notes Responding to: ???'s previous message |
The 1-Wire Appnotes show some simple roll-your-own interfaces that should be good for 300m or so (they say).
For really long distances, you need the strong pullup and slew-rate limiting. I used just the normal Open-Drain output of an LPC932 to do about 20m - driving some flashing lights on the "Christmas Tree" at the end of our garden... |
| Topic | Author | Date |
| dallas one wire : working range ? | 01/01/70 00:00 | |
| Nothing exact, but | 01/01/70 00:00 | |
| a rough translation from our local hw mailing list | 01/01/70 00:00 | |
| they quote 750 meters | 01/01/70 00:00 | |
| EMI | 01/01/70 00:00 | |
| Head end ? | 01/01/70 00:00 | |
| App Notes | 01/01/70 00:00 | |
| Specifically | 01/01/70 00:00 | |
| I had trouble with <3m! | 01/01/70 00:00 | |
| You must be doing it wrong! | 01/01/70 00:00 | |
| 1-wire Christmas tree? | 01/01/70 00:00 | |
| About the 1-wire Christmas tree... | 01/01/70 00:00 | |
| how fast? | 01/01/70 00:00 | |
| ZTX | 01/01/70 00:00 | |
| Funny you should say that... | 01/01/70 00:00 | |
| Relics | 01/01/70 00:00 | |
I've got some OC71s somewhere, too...! | 01/01/70 00:00 | |
| Tried the fet interface... | 01/01/70 00:00 |