dundakitty

You could try tying just the pull-up for the gate input of the 74HC595 to the Teensy's 3.3v regulator. The rest of your circuit can continue to use the your 3.3v supply.

Have you tried setting the pin mode to "INPUT_PULLUP" before setting the pin mode to "OUTPUT"? Like: extern "C" void startup_middle_hook(void); void startup_middle_hook(void) { pinMode(24, INPUT_PULLUP); pinMode(24, OUTPUT)...

My point is that to make Python run fast the library is in C/C++ and not native Python.

I hate to tell you this, but Numpy and Scipy are not written in Python. They have a Python interface, but the "optimized, vectorized libraries" are written in C/C++.

I used this 12v 5A Switching Power Supply to feed the barrel connector on this Stereo 20W Class D Audio Amplifier. I replaced the included power supply capacitor with a low-ESR aluminum-polymer capacitor. I used the power supply screw terminals...

Would something like this 2.5W mono amp work for you? I've used a Class D amp in a project, only using the stereo outputs of a Teensy 3.6. I powered a 20w stereo class-D amp with a 12v wall brick, and used a 12v to 5v regulator to power the...

How did you get 44.1 kHz using a 22.05 kHz interrupt? Looks to me like it was 11.025 kHz.