My build progress

On the metal IBM panels we used spring or bent washers to allow for contact without soldering (warranty issue) as the standoffs were alway a mill or two out.

2 Likes

speaking of modules…whatever happened to my Slew module I sent you to take a look at? :stuck_out_tongue_closed_eyes:

1 Like

It doesnt work.
I could never get my own to work, and still have no idea how @ChristianBloch’s worked… lol

2 Likes

12 VAC switched inlet, the old way:

The new way:

10 Likes

A few weeks ago I made a YASH but was looking for something that could hold for a longer duration. This sounded like the ideal job for a microcontroller, and I had a couple of pi picos left over from when I made a midi controller. What I wanted didnt even need to be sample and hold, just a random voltage that changed on trigger.

While reading the SDK and datasheet I decided this little thing was awesome, and that the best plan of action was to put my current project on hold and see what I can get out of this pico. How about trying to make a programmable kosmo module with access to audio and cv in and out, plus some knobs, where a developer could program a module within a callback function similar to JUCE, vst, vcv or any other audio plugin I had developed for.

A few opamps and multiplexers later and I had a PCB that I could program.

This lived on my desk for a bit, with pots and jack sockets hanging off of it, was getting a bit annoying, so I made a front panel with all the pots and sockets the module couild handle. My Idea was to make a development module, then and future modules would be made just using the required hardware.

It still has some rough edges, but last weekend I was able to write a VCO, VCF & a few utility modules, and this weekend I started on a delay, sorted out quite a few rough edges, and made my first module using one of the boards, the sample and hold module I spoke of above.

I have a few pcb’s left and am intending to use these before I get the next version of the board, when I shall publish to github.

11 Likes

Fantastic! The Pi Pico really does look exciting.

3 Likes

I have received these today.
It is the 30 pin variant, much like others have said.

This guide has helped me understand the landscape of the different dev boards for this chip.

Ive got some errands to run, but i look forward to updating when i understand this better. But at least i can say i believe the dev boards i purchased, (manufactured by ‎AITRIP) have pinouts like what is described in these articles.

It appears to be a clone of the “DOIT ESP32 DEVKIT V1 Board (version with 30 gpios)”

AS things become more clear to me, ill split this out into its own thread.

2 Likes

Got my ModalResonators up and running on the Daisy Seed Pod:

Code’s here if anyone’s interested:

Ideas for next steps include seeing if I get some functionality to work on a Black Pill using 12bit PWM for output and give it a bunch of pot/cv combo inputs - we’ll see if I’m motivated enough to do that.

Cheers

9 Likes

Prototyping the suboscilator for the ssi2130 vco. All 3 waveforms seem to be there!

17 Likes

Great links, thanks.
I found the Arduino IDE works well with the esp32 but recently I switched to using PlatformIO in Visual Studio code for an esp32 cam and found it easier.
Feels a bit of a cop out but I’m more comfortable with the version control and that libraries are assigned to a project and that version of the library sticks with the project
After installing I found most of the boards I like already loaded; esp32, teensy, RP2400, Arduino, all the raspberry Pis including the pi Pico, seeeduino etc.
Now it’s just, new project, select board, then code in your preferred language with intelligent support as you type and a very useful debug set up which the Arduino IDE lacks.

Still… Open source Microsoft… Or as Mr Gates may put it, “one IDE to rule them all and in the darkness bind them”.

Enough waffle.
My best to all!

4 Likes

I love the look of these NOS 074’s

And they match the NOS Zener diodes too!

7 Likes

LOL , it scares me seems fake because you hardly see them like that .

2 Likes

Been busy building filters. About 3/4 of the way through the initial batch.


Instagram post:

https://www.instagram.com/p/CepOFmrPVFY/?igshid=YmMyMTA2M2Y=

17 Likes

I think the technical term here is Groovy Baby!

2 Likes

I’ll see your square illuminated switch and raise you a key switch. I think they give projects a nice 1980s nuclear device feel.


Also I’m not good at cutting square holes.

17 Likes

Now, you have to do a video entitled: “MegaGrrrrrr - 100 filter in series”

5 Likes

For a real 80’s feel that would be two keys, each in separate cases, requiring two operators.
… Would you like to play a game?

9 Likes

Ha! Think you’ve just given me justification for building a second case.

5 Likes

It’s only illuminated if you connect it to mains power, or at least I think that’s why mine doesn’t light up.

That was a big reason I printed my panel.* Why spend my time drilling cutting and filing by trial and error when I can just spend my time struggling with drawing up a design file? Seriously, it was easier and the rectangular hole was perfectly sized. The mounting holes should have been larger but I think they’ll work out all right.

* Another big reason, I just got the printer and everything looks like a nail.

5 Likes

The end result does look rather nice. I always enjoy oogling at lovingly designed and aesthetically beautiful modules such as yours, before grabbing a rusty fret saw and a can of matt black spray to work on my own stuff. It’s like watching Master Chef whilst eating a pot noodle with ketchup.

5 Likes