MichaelMeissner
Senior Member+
I did have a thought experiment, wondering besides USB/ethernet what would be the most sound outputs/inputs you could put on a Teensy 4.1, while still using the SPI ports, etc. My thought is:
Obviously whether the Teensy could control all of those pins, both in terms of enough CPU cycles and power levels, I don't know.
- I2S1 with 5 data pins (6-9, and 32) along with the control pins (23, 21, 20);
- I2S2 with 2 data pins (2, 5) along with the control pins (3, 4, 33);
- S/PDIF (pins 14, 15);
- Midi on hardware serial1 (pins 0, 1);
- Midi on hardware serial3 (pins 14, 15) if you aren't using S/PDIF;
- Midi on hardware serial6 (pins 24, 25);
- Midi on hardware serial7 (pins 28, 29);
- Midi on hardware serial8 (pins 34, 35);
- Flash chip to hold sounds (underneath pads 49-54); (and)
- Micro-SD card to hold sounds (built-in).
Obviously whether the Teensy could control all of those pins, both in terms of enough CPU cycles and power levels, I don't know.