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Solved it eventually by skipping the use of HW SPI for the LED strips. Hooked them up to regular pins, used the DotStar library, declared the data and clock pin and all worked again. Still find it strange it didn't work properly. Note: also tried with soldering the LED strip to pin 26/27. It...

Ok, did a few additional tests. If I run the loop with just playing the Hum sound over and over it works. So there must be some conflict with the other items being Motion or LED. Could it be because of the SPI perhaps?

Ok, got it kinda working on pin 8. As in, sound plays when I try combining sounds in the setup() section. However, when I combine it in the loop() section, where everything comes together, I do not hear any sound. This setup used to work with a Teensy 3.2 and Propshield sound out. So it must...

Ahh, it's just a matter of defining a different pin in the script I guess. Will try that one, thx Paul! Will report back if it has succeeded. Thank you for your patience and help, much appreciated. :)

Thx again Paul, what a great help and support. Ahh, so pin 2 is not needed for the motion detection from propshield? That would definitely work. And if I would go the route of pin 7, would that mean that I have to redefine the LED communication to another pin on Teensy right?

Removing pins wouldn't be an issue, but I thought that the combination would always give conflicting pins: - Max98357A for sound output through I2S(1 or 2) from Teensy 4.0 always conflicts with either LED (pin 7) or Motion (pin 2) to communicatie with the propshield right? How would I solve...

Would a Teensy 4.1 help out here? Instead of a Teensy 4.0

Hi Paul, that's also an option. However, I noticed that the Propshield uses pin2 IRQ for motion sensors (which I also use). Is my conclusion correct that I can not make this setup work in this combination, being: - Teensy 4.0 - Propshield (LED, motion, flashmemory) - Max98357A for sound output...

Hi Paul, thank you a lot! I've learned something new. Reason why I am trying this is because I want to combine it with a propshield. I've read quite some posts, but I am still not sure how I could combine these as pin 7 is (also) used for addressing the LED strip.

A, it works on pin 7! But why doesn't it work on pin9 or pin6?

Tried with AudioMemory(10). Still only a short crackle when it gets power, but no sound

Ok, thx , will try that!

Hi, I've made a simple setup with a Teensy 4.0, a MAX98357A board and a small speaker. I've tried numerous things to get it to work, but even the simple ToneSweep does not seem to work. Searched the forums, but either I missed what could be wrong, or a component is not working. Tried 2...

Ok, will finish up the setup first and hook it up to an amp USB meter to check required amps, etc. Good tips, thx all! Will post back with the finished item! (or another question, lol) Much appreciated!

Ah, I knew I had to check. Glad that I did, thx for the quick reply! Do I still need an extra converter board or something? Or can I hook it up directly to the Teensy? And what if I hook them up to one of these...

Hi all, I am doing a custom lightsaber together with my son. We already have it working from the computer. Setup is as following: - Teensy 3.2 - Teensy Prop shield - 4 ohm (2W I think) small speaker - 2x addressable LED strip...