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To get such a tiny form-factor a few compromises had to be made, it doesn't have an Arduino serial port connection for debugging and some computer's USB V3 ports don't recognize the Trinket's bootloader, but USB V2 ports will. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Power supply up to 16V DC, reverse polarity, thermal and current-limit protection Trinket may be small, but do not be fooled by its size Its a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power.8k bytes flash memory, 5 x GPIO lines including analogue inputs and PWM outputs.male header pins for you to solder on as required. 32 KB RAM - 64x as much as 512 bytes on ATtiny85. 256KB Flash - 32x as much as 8 KB on ATtiny85. Updating ATtiny85 8-bit AVR for ATSAMD21E18 32-bit Cortex M0+. Supplied as a fully assembled board plus 2 x 5-pin strips of 0.1in. Key Features: Same size, form-factor, and pinout as classic Trinket. Adafruit provide a free tutorial and example code to get you started, imagine driving 150 NeoPixels with such a dinky board. The board is capable of outputting 150mA and has an ultra-low drop-out regulator which will switch between USB and battery supply automatically. Adafruit Pro Trinket LiIon/LiPoly Backpack Add-On. As of October 9th, 2015 the 5V Trinket comes with a micro-USB connector instead of a mini-USB connector Trinket may be. Its ATtiny85 processor has 8k bytes of flash (programme) memory, 512 bytes of SRAM (static RAM) and 512 bytes EEPROM and runs at 8MHz. Adafruit Trinket - Mini Microcontroller - 5V Logic. The Adafruit Trinket 3.3V mini-microcontroller is a tiny (27 x 15mm) Arduino compatible processor board which is programmable via its micro-USB socket.