| ??? 06/24/06 22:46 Read: times |
#119033 - hmmm Responding to: ???'s previous message |
It sounds if you may be out of you leauge, But any way.
Typicaly the pot is is wired 1 side to plus, one side to minus, and the wiper out. The PIC a2d requires less than 2.5k resistance for best preformance. Hence the 2K pot ( someone read the data sheet). Measure the the voltage swing at the wiper. Then buffer your output with an op-amp. The PIC is looking for a voltage. Remember you are feeding another micro. It may not like you adjusting the pot. You are trying to defeat its program. It may fight back. or it could be a simple program and not care. |
| Topic | Author | Date |
| Looking for 2k ohm digital pot | 01/01/70 00:00 | |
| Take care... | 01/01/70 00:00 | |
| Checking the voltage during operation | 01/01/70 00:00 | |
| Traced circuit to the PIC on the board | 01/01/70 00:00 | |
| hmmm | 01/01/70 00:00 | |
| I would be very careful | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| This is how the Mechnical Pot works | 01/01/70 00:00 | |
| Am I missing something ? | 01/01/70 00:00 | |
| What would be the fun.. | 01/01/70 00:00 | |
| The fun would be to avoid a barbecue | 01/01/70 00:00 | |
| fun vs safety | 01/01/70 00:00 | |
| Exactly!! | 01/01/70 00:00 | |
| Already installed on the unit | 01/01/70 00:00 | |
| thankless water heaters | 01/01/70 00:00 | |
| Oh yes there is... | 01/01/70 00:00 | |
| no way feasible, not no way in the world | 01/01/70 00:00 | |
| Valve in the outlet | 01/01/70 00:00 | |
| There is always the controled facsets | 01/01/70 00:00 | |
| how fast are they? | 01/01/70 00:00 | |
| Flush fast | 01/01/70 00:00 | |
| The unit has no flow control or sensor | 01/01/70 00:00 | |
that will depend on the plumbing | 01/01/70 00:00 | |
| Showers | 01/01/70 00:00 |