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After a day of juggling around the various components it now works running IDE 2.0.3, Teensyduino 1.57, U8g2 2.33.15 on MacOS 13.3.1 (a) on MB Air M2. Im not quite sure what happened, but i wont touch it anymore. Never. I will be one of those guys that use their System until it breaks apart...

Sadly, bounce isnt the issue, its U8g2. It even gets more mysterious. If I use a U8g2 Version up to 2.3.2 it complies with Arduino 2.0.3, newer ones throw the wire Error above. Instead most of the Fonts are missing.....

Found a downgrad link to the Arduino IDE 2.0.3 : https://github.com/arduino/arduino-ide/releases/tag/2.0.3 But it still doesnt work:

So after trashing my Sunday it boils down to this: I have accidentially installe Arduino IDE 2.1 and the latest Version of U8g2 2.33.15 throws consistently this message: /Users/frankdaniels/Documents/Arduino/libraries/U8g2/src/U8x8lib.cpp: In function 'uint8_t...

Maybe it is that Arduino 2.1 -which sneaked in here somehow - is much more picky compiling libraries???

@PaulStoffregen I think so? I already tried a clean Install of Arduino IDE but i guess ill have to remove some Files manually. Weird thing is, i didnt touch the whole IDE since i worked on that project 3 weeks ago.....

U8G2 Library Problem Sorry, if this has been asked before.... I tried to resume working on a Project after 4 Weeks but Arduino IDE 2.0.3 now refuses to compile with this Message: /Users/frankdaniels/Documents/Arduino/libraries/U8g2_Arduino-master/src/U8x8lib.cpp: In function 'uint8_t...

Installing Rosetta manually did the Trick! Arduino IDE runs on M2 native, Teensyduino obviously doesnt - i guess Ventura doesnt know because it only sees Arduino IDE so it doesnt install Rosetta automatically. Maybe you like to add a hint on the Website?

Thanks for your superfast reply, but sadly, no: fork/exec /Users/frankdaniels/Library/Arduino15/packages/teensy/tools/teensy-compile/11.3.1-beta2/arm/bin/arm-none-eabi-g++: bad CPU type in executable Compilation error: fork/exec...

Moin, im trying to get Arduino IDE 2.0.3 running on my shiny new MB Air M2 running Ventura 13.2.1, i installed the IDE and Teensiduino 1.57.2 and now im getting this message: fork/exec /Users/frankdaniels/Library/Arduino15/packages/teensy/tools/teensy-compile/5.4.1/arm/bin/arm-none-eabi-g++...

Impressive! You really should implement the Cirklons concept of Aux Events, which makes the Cirklon the Cirklon and sets it apart from other sequencers. Sadly its hard to get into it without having a Circlon at hand, the manual gives just a brief glimpse of what you can do with it and sadly...

Not that i am a pro in electronics, but shoudnt the batteries GND be somehow connected to the Teensys GND?

Update rate for LFOs and the like should be sufficient with 100-200Hz. Envelopes do not need to be faster than 1kHz, heres my favourite piece of information about the attack phase of envelopes: Fro the unofficial Waldorf User FAQs: faq.waldorfian.info Q: Why do some synths produce clicks...

What purpose has a OS on an embedded microcontroller?

Besides this, theres not much to filter from a Sine.....

This helped me tremendously: - use a seperate +3,3V Regulator for everything analog (especially for you pots positive rail) as the +3,3V provided by Teensys regulator is quite unstable - connect the +3,3V Analog voltage to the Aref Pin (24?) and set analogReference() to EXTERNAL - keep your...

@craigyb If there is anything i can just ship to you, let me know.

While you are fixing the pcb its a good idea to at least buffer the DACs output with a 740x adding a 68R at the output of the OpAmp. Its standard for Eurorack that every device protects itself as you cant be sure the other side is nice to your module.... I am shocked that the voltage was able...

While you are fixing the pcb its a good idea to at least buffer the DACs output with a 740x adding a 68R at the output of the OpAmp. Its standard for Eurorack that every device protects itself as you cant be sure the other side is nice to your module....

Audio is meant to be AC because a microphones ( and a speakers) membrane swing around their resting position - see here https://en.wikipedia.org/wiki/Alternating_current

@senorblasto: These werent used because of their limitations - it was cutting edge technology back then and the best available. Its just that you got used to these audible artifacts. You may want to read here http://wolfgangpalm.com/story/ about what Wolfgang Palm did "wrong" developing...

Fun fact: the unique Sound of famous Synthesizers like the ppg Wave Series, the Waldorf MicroWave Series (and the iconic Waldorf Wave), Sequential Prophet VS, as well as older Korg Synths like the DW-8000 or MS-2000 heavily depend on these aliasing artifacts. The same synthesis principle "done...

Im in for the 3.2 version - would save me a lot of hassle in my modules.....

Frank, i would be sorry if you would leave here, but i totally understand your frustration. Thats what the internet bacame the last years, a place where your passion, work and knowledge gets ripped by the ones that are to lazy to fix soemthing theirselves, think theirselves or even say thank...

This doesnt look like a valid sketch, lacking setup() and loop(), maybe you familiarize yourselves on how to write a sketch (and how to read the compiler messages) first? Edit: + i think you need some kind of output to make the audio system run. In your case audioOutputUSB() would be the place...

Moin! I try to read a pushbutton on a Teensy 3.2 Pin 13 (the one with the internal LED....) the pushbutton shorting the Teensys pin to gnd. I set up the Pin with const int button6=13; pinMode(button6, INPUT_PULLUP); which works for all other pins i use except pin 13. I suppose its the...

Its a much newer design that performs better in every aspect. Package doesnt matter. But theres a slight difference between 300nF and 22µF. Not that much, just about 3 orders of magnitude. Your Module exists in coexistence with all the others in your modular, so you should care as everyone...

@ghostintranslation I cant read your schematics well, as the chosen color schmeme black/red doesnt work very well for me. I'd try the folowing: - replace the 2 tiny SMT Caps C1, C2 (?) at the regulator with something like 22µF or even bigger (i have nice 100µF Subminature Caps) - the bigger...

Checking the Board Pic from above where are the usual huge Caps for the regulator? I just can spot 2 tiny SMT ones, i doubt they will be the needed 22uF+ ones. 0,1uF will certainly get the LM78 going but wont allow for any significant load. I use the attached schematics to power 3.2s in most of...

Wouldnt work this was as most linear converters need about 2V Headspace. If you want to go that way first drop to something like 7V. Besides this i would suspect something wrong on the teensy side, most probably some bad soldering at the pins?

Try using the U8g2lib which is non-blocking. At least here using teensy 3.2 with a SD1306 OLED on I2C Pins 18+19 and a PT8211. Yeah, i know but I like weird performing D/As, at least for this project....

As for the I2C noise problem it immensely helps to separate the audio and i2c parts as far as possible physically on the board an make sure the digital/i2c gnd doesnt flow thru the audio gnd. This said place everything digital nearer to the master GND point (the Eurorack Power connector) than...

You all might want to kill me, but personally i find the PT8211s sounds quite nice if you are into gritty sounds. Remember, many famous Synthesizers and Samplers had awful D/A (pre 1000 Akais, PPG Wave and especdially Prophet VS come to my mind) yet these added Harmonics are part of their iconic...

These clicks would also happen in an analog Oscillator if you "switch" it on fast enough. Its not a "digital" problem, its a physical limitation.

Cool. Thank you - presumably i was worried because of bad PicAxe experiences years ago.....

So..... i see nothing that couldnt be interrupted? I need more coffee....

Moin! I have some timig critical things to do and need to know if delay() interrupted by an interrupt while its delaying..... Many thanks for any input, Frank

I use WS2812Serial to drive 15+ LEDs as indicator LEDs in modular synth modules. Im not playing .wav files but have other timing critical things to do which works absolutely flawless. To avoid noise issues i keep everything LED realted as far away as possible from audio components, route the...

Happy Birthday from the other birthday child. All the best to you and you loved ones!

Congratulations, looks great! Whats that fader for?

In the other hand - what do i do with 30+ Cards...?

What type of "knob" do you record for 8MB Data??!?!?!?

Start with Behringers Model D. Its a clone of the archetypic MinMoog.

Maybe this helps, here are some Videos with sound examples: about the MiniMoog Filter https://www.youtube.com/watch?v=yPHJA092a9w about self oscillation https://www.youtube.com/watch?v=dVgIf71uWB4 hear here why self oscillation is crucial https://www.youtube.com/watch?v=JZXpF1zpJkc (BTW...

The cult around the Moog Filter is all about its iconic sound. For comparison simple filter sweeps of an rectangle Waveform with different frequencies and resonance settings should be sufficient. Most interesting to synth-guys is the behavior with high resonance settings, and if it can nicely go...

For me its perfectly OK, but i know how these hardcore geeks are: a Low Frequency Generator has to go from slower than a galcier up to 20khz, an analog VCO has to track withing +-2ct and everything has to be able to be modulated at audio rates, preferably up to 20khz as well..... From my...

"synth guy" here: A usefull filter should have "CV" for Cutoff and Resonance preferably up to audio rate for FM. "Ladder" should be sufficient, also to avoid copyright infringements.

Why dont you then use the internal Audio Systems Effects for "small and inexpensive"? Adding a simple circuitry for mixing audio input would allow to use it as an FV-1 FX/Filterbox additionally, which is a huge advantage. Then, sampling is just a ADC away.... You already add 10€+ of parts just...

You dont "reroute data to the SDA pin". The display wont know what to do with Audio Data, in most cases its a dumb thing that just diplays whatever Bitmap is sent. You need some graphics library that you can use to draw a Picture in a Buffer, which then is sent to the Display. You paint the...

What about an Audio IN so you can route a signal thru the Filter + FX, just like the Shruthi. Maybe you could even Sample?