Analog Circuit for Rotary encoder

[nanoman]

Hi everyone,

I want to present to you My analog cuircuit design to build a rotary encoder system i think very helfull for hobbysts, it's possible to hack many things without using a microcotroller or an arduino, this is my video. enjoy yourself !

And My schematic:

 

[jiripolivka]

Nice, but I do not see how you make an analog voltage proportional to pulse count.
Have you heard of Selsyn?
Otherwise the simplest rotary angle to voltage converter is a potentiometer. completely analog device.

 

[nanoman]

thanks you for your responce, pulses are generated by Transistor T 7 every sycle, my circuit is based on a special design fli-flop system associate to Transistor T7 disigned to timing the lighting of the LED's.
for more details:

https://hackaday.io/project/5164-democracy-for-rotary

I never heard about selsyn, but i see some information about the system, it's very intresting it's an old technology.

Of cource i know potentiometers, but my system is designed to hack every devise have two buttons to ajust volume or frequency or Rc control without using microcotroller, thank you

 

[nanoman]

Hi everyone, this is my assembled circuit board, it works very well.