Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work well on many modern computers. We no longer recommend it; consider the Trinket M0 for better capabilities and built-in USB.The Adafruit Trinket is a tiny yet powerful microcontroller board based on the Atmel ATtiny85. Designed to be small and low-cost, it fits into any project without sacrificing functionality. It is ideal when you want a compact and affordable Arduino-IDE programmable board.The ATtiny85 features 8K of flash memory, 5 I/O pins including analog inputs, and PWM outputs. The USB bootloader allows programming over USB like an Arduino, making the Trinket a mini Arduino board for simple projects.Key Features: ATtiny85 microcontroller with 8K flash, 512 bytes SRAM, 512 bytes EEPROM Internal oscillator at 8 MHz, configurable to 16 MHz via software USB bootloader with LED indicator for easy programming Micro-USB connector for power and programming On-board 3.3V or 5.0V regulator with 150mA output Automatic power switching between USB and external power Reset button to enter bootloader or restart 5 GPIO pins (2 shared with USB), including analog inputs and PWM outputs Hardware I2C and SPI support for sensor interfacing Compact size with mounting holes This is the 5V version of the Trinket, capable of running at 8 MHz or 16 MHz. The 3V version is also available for 3V logic applications.Limitations: No serial port support - no serial debugging capability USB v3 ports on some computers may not recognize the bootloader; use USB v2 or a USB hub instead The board dimensions are 1.2" x 0.6" x 0.2" (31mm x 15.5mm x 5mm) and weight is approximately 1.85 grams (without headers).For more detailed information including pinouts, tutorials, and programming examples, see the Introducing Trinket tutorial.
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