Timeline for How to smooth potentiometer values
Current License: CC BY-SA 3.0
16 events
| when toggle format | what | by | license | comment | |
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| Feb 21, 2022 at 8:47 | answer | added | john bower | timeline score: 0 | |
| Apr 7, 2013 at 3:24 | vote | accept | CommunityBot | ||
| Apr 7, 2013 at 3:20 | comment | added | Kaz | Since you don'get the behaviors with an external pot, this suggests that the linear actuator's pot is a piece of crap. Pots can have a flaky wiper contact. | |
| Apr 6, 2013 at 21:18 | review | Suggested edits | |||
| Apr 6, 2013 at 21:31 | |||||
| Apr 6, 2013 at 21:02 | history | protected | W5VO | ||
| Apr 6, 2013 at 20:46 | history | edited | user3045 | CC BY-SA 3.0 |
added datasheet
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| Apr 6, 2013 at 19:54 | history | tweeted | twitter.com/#!/StackElectronix/status/320625614287687680 | ||
| Apr 6, 2013 at 19:36 | answer | added | Kaz | timeline score: 6 | |
| Apr 6, 2013 at 18:02 | comment | added | jippie | Please add a datasheet and circuit diagram to your question. | |
| Apr 6, 2013 at 18:01 | comment | added | jippie | This may be related: electronics.stackexchange.com/questions/51474/… | |
| Apr 6, 2013 at 17:35 | comment | added | user3045 | Ack, the entire system is rather complex so I can't really produce a schematic (sorry). There are steppers in the system as well but everything has decoupling caps. 2nd Its a new pot so I don't think the wiper is damaged as yet. Also I don't get noise when the motor is not moving (well very little anyways) | |
| Apr 6, 2013 at 16:54 | answer | added | vicatcu | timeline score: 3 | |
| Apr 6, 2013 at 16:41 | answer | added | HikeOnPast | timeline score: 0 | |
| Apr 6, 2013 at 16:36 | comment | added | Anindo Ghosh |
1. The pot's contact surface is probably either scraped off in parts, or covered by an oxide layer, thus causing the jumping values. Replace the pot. 2. A code-based method to address the problem is to reject outliers, i.e. any values more than a set amount away from the average of the previous n values. Would you want me to formulate this into an answer?
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| Apr 6, 2013 at 16:29 | comment | added | user17592 | Do you have a schematic? That might explain why the pot isn't stable. You can also try to test the pot when it's disconnected, so that you're sure it isn't just that the pot's broken. | |
| Apr 6, 2013 at 16:26 | history | asked | user3045 | CC BY-SA 3.0 |