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Thanks. :)

I meant impedance instead of reactance.

I forgot that digital switching frequency is similar to sinusoidal frequency as far as reactance is concerned. You have convinced me that STM32F103 is the better way to go, but that is a lot more new information, programming and circuity to absorb. It would be impolite to impose on you to teach...

Read your May 17, 2026 many times. Some but not all of it is getting through my head. How is one microsecond enough settling time when it takes Teensy 6 microseconds to read properly? Is "analogReadResolution" how you control how fast you are reading analog values times per second. 10 bit being...

The keyboards are nice. I hope I do them justice with building the organ pedal board. I got keyboards, presets, bench adjustment mechanism and keyboard parts from OSI; Organ Supply Industries. I am attaching a picture now since I don't remember doing that at this forum. 🤨 Or did you mean circuit...

After further reading, it appears I don't have to use any library. The Teensy is already MIDI ready. https://www.pjrc.com/teensy/td_midi.html indicates I only have to set the Tools->USB Type menu to MIDI and it will recognize all the MIDI commands.

Reviewing the code you most recently sent, I am wondering which library you installed that responds to usbMIDI.sendNoteOff( index, 0, 1 /*channel*/ ); There are so many to choose from. I would really like to use the one you selected.

Thank you for providing me answers to all my questions. It time now for me work on this project. Building the pedal will take a lot of my time.

I really should read the entire tread a lot more carefully. I keep missing critical information. Grounding the transistors will free 9 pins for a total of 12 analog inputs for a 16 wire cable:) . Would you mind giving me more code on how you correct each key difference and determining when the...

Thanks again for the excellent explanation. I am still having trouble understanding the JP1 socket in the schematic. I understand the SJ7-9 are solder jumpers to select one for each SIG for A0-A2. Allowing you to use the same board for each MUX. Where does SJ1-6 go to? Also, What are the values...

Thank you for the time and effort you pit into your answer. You are a bit over my head, but I will try. Is it correct that you are trying to show me how to read the SS49E Hall sensors directly into a Teensy analog input without the "Blue Pill", STM32F103) indicating the issues going to such an...

I am interested how to program the Teensy to read and convert your multiplexer board signals into key information. I am building a three 61 key manual 32 note pedal board organ. That will require 12 multiplexer boards not counting the pedal. I already have the three 61 note manual wood...

As for after touch, closed cell double sided window glazing tape might be useful. Amazon has it at https://www.amazon.com/dp/B08131X821 . There are various widths and thicknesses available. You could double the thickness by overlaying two tapes. You would keep the top layer covered with the...

Would I be out of line asking if you would share your programming?