The second version of Adafruit Trinket development board, the MicroMini 5V, packs even more power into a tiny microcontroller board. It measures just 27 x 15 x 4 mm – that’s roughly the size of a postage stamp. The Trinket development kits feature the Atmel ATtiny85 processor with 8K of flash and 5 I/O pins. There is a USB bootloader so you can plug it into any computer and reprogram just like an Arduino.
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