Skip Navigation

InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)CH
Posts
7
Comments
1,181
Joined
1 yr. ago

  • Nope, same problem as linear. Can you get angle correct to 4 decimal places and prevent the contact from oxidation?

    "Digital potentiometers" are rotary encoders, which are switches, not resistive dividers. They are a useful input device for a microcontroller but not in an analog circuit.

    Another option is a multi-pole rotary switch with selectable resistors in each position, but that only gives you the available values.

    They are all larger and more expensive. Just use two E12 resistors in parallel or series, you can always get within 1 %. They cost a dime a dozen. The series was made for such combinations – did you know that 180 Ω and 220 Ω in parallel gives 99 Ω, a value useful for 1/100 dividers?

  • E192 resistors are expensive. E6 resistors 6.8Ω and 68Ω in parallel, available pretty much everywhere components are sold, result in 6.1818 Ω, which is within 0.05 % of the target, around the edge of what you can achieve without active temperature compensation.

  • Probably a habit from the dark ages: there is an entire generation (15 years if you were rich in 1998 and poor in 2013) of phones where SMS is the longest freeform text storage available, and only 1 draft can exist at a time, hence the sending.