Teensy USB Development Board

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I have a Teensy 3.2 USB Developmnent Board from PJRC, along with the audio adapter for it.

I have yet to fire it up. Sigh. Got it a year ago (May 2016).

The intention was to build a device to record NFS (noctural flight calls) of migrating birds.

It uses an ARM Cortex M4 processor and it costs < $20. The audio adapter has a slot for a MicroSD card on it.



  1. Run in Arduino IDE and program in C
  2. Install Micropython and program in Python