| ??? 06/10/11 08:48 Read: times |
#182573 - Linearizing a log potmeter |
Hello,
Guitar expression pedals (footpedal with potmeter) come in to forms : lin and log The potmeter is powered by +5V so the I'm getting 0-5V. I read this value with an ADC, process a little and send it int he form of a midi message. The above is no problem with linear potmeters. But is it possible to use a logaritmic potmeter and 'linearize' it by software and get the same output for every angle compared to the linear potmeter. Peter |
| Topic | Author | Date |
| Linearizing a log potmeter | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| Sure it is possible... | 01/01/70 00:00 | |
| No need to calibrate | 01/01/70 00:00 | |
| Desired result | 01/01/70 00:00 | |
| Lookup Table | 01/01/70 00:00 | |
| Help with lookup table | 01/01/70 00:00 | |
| Formula | 01/01/70 00:00 | |
| Formula | 01/01/70 00:00 | |
| Not sure what you mean there | 01/01/70 00:00 | |
| He's quoting a line from a movie | 01/01/70 00:00 | |
| Like CRM-114 | 01/01/70 00:00 | |
| Bang | 01/01/70 00:00 | |
| Youtube snippet | 01/01/70 00:00 | |
| I have to agree | 01/01/70 00:00 | |
| App note | 01/01/70 00:00 | |
clickable link | 01/01/70 00:00 |