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LOG pot to linear (when you HAVE TO use a LOG pot ...
https://forum.arduino.cc/t/log-pot-to-linear-when-you-have-to-use-a-log-pot/117050
linear = log (sensorValue) / log (1000) * 1023; It seems to almost correct the problem, but the midway point is still slightly off. I know this might be futile, but does anyone have any other suggestions?
Convert log pots to linear pots - Electronics Forums
https://www.electronicspoint.com/forums/threads/convert-log-pots-to-linear-pots.70898/
On a linear pot, each degree of rotation of the shaft has an equal resistance change. On a log pot, that change of resistance per degree of shaft rotation varies. You can "syntheisze" a log pot with a resistor from the arm to one of the fixed ends (for discussion, we'll assume the ground end) of the pot
Audio-Taper Response From Modified Linear Potentiometer ...
https://www.electro-tech-online.com/articles/audio-taper-response-from-modified-linear-potentiometer.738/
Below is the LTspice simulation of a linear pot with such a resistor (R2) to ground. Experimentation has determined that a resistor value of 10% to 20% of the pot resistor gives a good approximation of an audio-taper pot. The graph shows a linear plot (top) and a logarithmic (dB) plot (bottom) of volume level versus pot rotation (1% to 100% ...
Convert reverse-log taper potentiometer to Log/Audio taper ...
https://electronics.stackexchange.com/questions/258443/convert-reverse-log-taper-potentiometer-to-log-audio-taper-potentiometer
So, as an approximation, you can convert (somewhat) a D response to a G response (by adding a resistor as per the top diagram) but you can't go the other way without compromizing the pot's ability to turn the sound off completely (adding a fixed resistor to the common end of the pot to somehow raise the G response towards a D response).
Logarithmic & Linear Controls of Potentiometer - …
https://university.listenlights.com/2017/10/13/logarithmic-linear-controls-of-potentiometer/
Figure 2.Converting a Linear Control to Logarithmic. It is also possible to get a close approximation to logarithmic operation by modifying the potentiometer as shown below. A fixed resistor having a value about a quarter of the potentiometer value is connected from the low (ground) end of the potentiometer to the slider.
Potentiometers: Audio vs. Linear Tapers - Jameco …
https://www.jameco.com/Jameco/workshop/circuitnotes/Potentiometers-audio-taper-vs-linear.html
For example, rotating the potentiometer to 50% will cause the pot to function at 50% of the maximum resistance. Linear tapers can be good for adjusting lighting through light dimmers or for motion control. Non-linear tapers are often referred to as a logarithmic or audio taper. These are most commonly used for audio volume control.
Audio or linear taper pots? What’s the difference ...
https://www.hoaglandcustom.com/2017/05/15/hello-world/
A LINEAR taper pot increases the signal in a linear fashion. (“1” on your control is equal to 10%, “4” is equal to 40% and so forth) This works very different from an audio taper volume pot. For those looking for a smooth, predictable transition to volume, a linear taper pot will probably work best for you.
Converting logarithmic analog data to linear data ...
https://forum.arduino.cc/t/converting-logarithmic-analog-data-to-linear-data/17394
Greetings, I guess this is more of a math question than anything else but I'm having a hard time figuring it out and I'm sure you guys can help. I have a 10K ohm potentiometer plugged into an analog input. When I turn the pot from min to max, the value first increases very slowly and then very fast near the end. So I'm guessing it probably is logarithmic.
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