Master Fader - Schematic Setup

[@pavelpavlov954]

Hi Filipo.What is the difference between the Master fader and the other faders on your video(I see that there is different processor but what is the advantage)? Thanks for the very informative videos!

[@fcampanini]

Hello Pavel, fist of all the difference is that the master just have the motorized fader where the standard channels have more devices. In terms of technology I moved to STM32 from Sam because after the acquisition of Atmel from microchip, the Sam technology has been abandoned. I was in need to move to something more vital. Cheers

[@pavelpavlov954]

@@fcampanini Thanks for the quick answer!Cheers!

[@HenkvanHoek]

Thanks for showing this. I just started my Mixer/midi controller. My approach to a Mixer/Midi controller is under development and I was considering to use multiplexers and the Teensy 4.1. The number of channels is 8 to 64. What are your thoughts on this?

[@HenkvanHoek]

My first attempt using a fader, some buttons and leds controlling Studio One 6. kzbin.info10pqej3p0zE

[@fcampanini]

Hello Henk, Teensy 4.1 is a very good option cause with its own MCU clocking at 600MHz you can surely do a lot. Issue here is the IO available in the sense that MCU surely have a lot but the prototyping board hardly cap them. About using multiplexer it’s indeed possible just in my experience they works perfectly in output (from the MCU to devices) but a bit more troubled in input, when you have to read. I strongly suggest you to start from 8 and then when you have a fully complete thing try to move. It can get pretty complicated already at 16 . Hope it helps! Filippo

[@fcampanini]

@@HenkvanHoek I had a look at the short , I take the liberty to suggest you to use rotary encoders instead of potentiometers for rotational controls… cheers!

[@HenkvanHoek]

@@fcampanini I used a potmeter because the rotary encoder was not available then. Rotary encoders are ordered.

[@HenkvanHoek]

@@fcampanini The intention is indeed to do prototyping all the parts, then building the 8 channel and expanding to 16 and or 24. 24 is enough for most of the bands. I also want to make it modulair. And I also will use a Teensy for controlling the audio part of the mixer. It is a project which takes probably a year.