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14 GPIO pins with selectable pullup resistors
3V LDO regulator
Pin #13 red LED for blinking
there is no Arduino or CircuitPython support—only ESP-IDF
Teensy++ AT90USB1286 USB Development Board with Header Stacking Header 14 GPIO pins with selectableThe Teensy++ is a complete USB based microcontroller development system housed in a compact footprint. Featuring an AVR processor running at 16 MHz, this board requires no special programmerjust a standard Mini B USB cable and a PC or Macintosh with USB port. This updated 2. 0 version offers abundant Flash, RAM, and pins, making it ideal for a wide variety of projects. USB can be configured as any type of device 16 MHz AVR processor (AT90USB1286) with
US$ 16.00
US$ 114.75
