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Hello everyone:D,

It's been a while since I worked on the manufacture of an analog synthesizer totally controlled at midday.

Thanks to your help and support, I realize this project a little...

Its good !!! I found the solution !!

While searching on the forum I found a member who wanted to light leds with midi messages.
I took its code and I modified it to match the project (I have on /...

Hello everybody,

I am currently making a USB MIDI controlled synthesizer. The microcontroller is a teensy 4.1. This should drive 2 dac Max11300 and 7 switch DG333.

I specify, I am new to...

good now step 2:

There it is well it works by midday in Usb, however for a synthesizer you need two envelopes, one for the vcf and one for the vca. So now the goal is to be able to manage two...

Its good !!! I found the solution !

I don't really understand why but the "word" variable was the problem .... I replaced it with "int" and everything works !!!!

...

Damn I forgot to specify, I use a Teensy 3.6 and an MPC4922 for the DAC

Hello everyone!:cool:

I come to implore your help for my project ...

Let me explain THE PROBLEM:

I am making an analog synthesizer totally controllable in MIDI.

For the management of ADSR...

I use 23 digipots MCP41HV31.

Finally I was able to recover 23 digital pins on the teensy.

That's a lot of track! Now the question is "Demux or not demux".

Is there any advantage to using...

Thank you for your answer,
I also use mux4067 to manage my analog pots from my midi controller.

However in this case it is a digital potentiometer. I'm looking for a way to expand my CS pin (chip...

Good morning all,

I am writing to you because I have an existential question ...

I use a teensy 3.6 which controls 25 digital potentiometers in SPI. Unfortunately, I do not have enough CS pins...

At first I planned to use comunication with the coupler, but it was a lot of problem.

In hindsight the USB communication seems more suitable in my project, because I intend to use 6 teensy with...

Indeed the DAC is for the synthesizer.

The MAX11300 is very interesting! I did not know, so I inquired about it, however there are several problems with this IC, firstly it is a 12bits, the...

Hello everyone,

I intend to use a DAC AD5360 with my Teensy 3.6.

However, I wonder about the connections.

From the information I could find (datasheel / evaluation board / arduino library)...

voici un schéma du circuit de enveloppe piloté par un teensy 3.6.

Le DAC sur le schéma est un DAC8718, 8 channels 16 bits. Sa plage de fonctionnement va jusqu’à 15V.
https://imgur.com/rUBAsl8

Hello everyone,

As part of our synthesizer project, we chose to use the HADSR envellope from https://midisizer.com/5u/dds-ahdsr-for-5u-modulars/
code source :...

In fact, that's what I did, however I put 7 together.

While looking on the forum I found the answer to my question: MCP23S17, 16 pins digital in SPI. We can put 8 ic on the same port spi, the...

Good morning all,

I need help with my synthesizer project.

To control by MIDI the different analog switches of the synthesizers, I replaced them with digital switches (DG444 and MAX333ACWP). To...

https://i.imgur.com/N6wPLMG.png

Hello,

I am currently making a 6 voice polyphonic synthesizer. I recently posted on this forum and your advice was very valuable.

The signals of the switch and potentiometers of the controller...

Thank you for your reply.

I thought of this solution, however the Teensy USB port (MIDI controller) is already used for sending and receiving MIDI data from the computer.

Maybe it is possible...

Hello,

I allow myself to write to you because I need your help and advice in my project. I am new to the world of teensy.

I make an analog synthesizer controlled in "midi". For that I chose...