joetee

"8 bidirectional endpoints" = 8 input endpoints, 8 output endpoints = 16 total.

@jerryk: Without seeing specific examples and/or information showing where you placed your syntax errors, there are a few very likely possibilities: 1) make sure you are modifying the correct usb_inst.cpp file a) there are separate core...

Any kludge such as that may work...at least until it doesn't 🤣. Hopefully, someone will be able to find the actual problem and a corresponding true, reliable fix. Mark J Culross KD5RXT

OK, but aren't two resistors and just a few seconds of your time, with which you may very well have the solution you are looking for at hand, at least worth a try ?? Mark J Culross KD5RXT

Jerry: I have a project that is very similar to the T41 in that it makes use of the Teensy4.1 + 7" RA8875 touchscreen display. I first built my TeensyMIDIPolySynth on a perfboard/wire-wrap, and everything worked like a champ. Feeling pretty...

Added to the F32 Audio library is radioCESSBtransmit__F32. CESSB stands for Controlled Envelope Single Sideband, which is a process developed for ham radio by Dave Hershberger, W9GR. The include file for the class has the basic references to...

Updated CODE above - a bit more playing: + or -: PACE_RATE is 10 s: Sound Toggle Off c: Enter Code String: 'c xyz>enter>' r: Toggle phrase repeat On Toggle Output {1,2,3,4} DD:On, Char:On, Full String:On, Active:Off Added class call to...

Thank you. I agree that the GPL v3.0 is in place. It just seemed a bit odd that someone from a company like Adafruit would come out and say this without some strong background, thus the question.

The license on the Arduino IDE seems very explicit:

Thanks for those tips !! Is Kaleidoscope Lite also available for Mac as thats what the user was asking for.

Try Kaleidoscope LITE, it's much faster than Audacity. Also free, you just have to register. Also try BatClassify, a nice open source classifier for Central European bats. This is the most accurate ID books for Central European bats...

Hi, is there any recommendations about software that runs on a current Mac, to analyse and maybe listen to batcalls from the teensybat? all the best Rainer

Hey all, I know that this has been discussed before, but I wonder if we might be able to cooperate with "BirdNet". This is an app which allows you to record then upload a sample of recorded bird call sounds and it will process it in the cloud and...

Hi, I’ve just noticed a link on the TeensyBat homepage for “New hardware without backup battery”, but it just links to the Software page. Would be great to have a version that didn’t need a backup battery – maybe you could use a super cap for...

Glad you got to the bottom of it! It is often some small detail that makes things turn the wrong way. In cases like these following: Can make all the difference - sometimes collecting the details will make you see something you overlooked (...

The scipy.signal library (*), coupled with matplotlib, makes all this filter design and evaluation relatively painless in Python. Perhaps its time to move on from Fortran! (*) Gives the similar functionality to MATLAB without having to buy it...

Today you can use up to 4 of those mics with Teensy 4.0. In the future more will become possible, but right now with the latest Audio library code (in 1.49-beta4), the limit is 4 mics. To use 4, you would connect 2 of them to the main I2S port...

Hi, PaulStoffregen, Appreciate you so much! Finally I got mems mic working!!! PS sorry to topic starter for intrusion!

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Keep the clock pins the same, use AudioInputI2SOct, and put a pair of mics' on each of 8, 6, 9 and 32. You should be able to test with your existing 4 mics, just swap them to 9 and 32 and use the AudioInputI2SOct object. Obviously channels 1-4...

alright i'll give it a try. I'm ordering more mics

You should be able to get 10 INMP441 microphones using a Teensy 4.x, using one AudioInputI2SOct and one AudioInputI2S2. The pins you need to use are documented in the Design Tool; note I2S2 is a separate I2S bus and therefore two of your...

Great great product the Teensy 4.1, very happy with this powerful beast.

MTP Disk (Experimental) you are right not needed at all,... Thanks for the remark. Best, Johan

This example is very useful for its code to set up and use a USB thumb drive for storage. However, it has some limitations that will need to be addressed to convert it to a long-term logger useful for scientific or engineering use: 1. The CSV...

Here is a simple example of logging data to a USB thumb (stick) drive: /* MSC USB Drive datalogger This example shows how to log data from three analog sensors to an MSC USB drive using the mscFS library. created 24 Nov 2010 modified...