Adafruit ingenuity comes with the familiarity of the common core Arduino chip

Available now from Digi-Key, the Adafruit Industries' LLC's ATmega328 Pro Trinket development board was designed with 18 GPIO, two extra analog inputs, 28K of flash, and 2K of RAM. Conceived to deliver more of everything, the board has USB bootloading support using a Micro-USB jack. The company also added Optiboot support, so userscan either program their Pro Trinket over USB or with a FTDI cable. The PCB measures only 1.5 x 0.7 x 0.2 inches (without headers) and packs much of the same capability as an Arduino UNO. As such it is seen as ideal once users have finished up a prototype on an official Arduino UNO and want to make their project smaller. The pro trinket 5V uses the Atmega328P chip, which is the same core chip in the Arduino UNO, Duemilanove, or Mini at the same speed and voltage. Not only is the Pro Trinket programmable using the Arduino IDE on set up - 99% of Arduino projects will work out of the box, says the company.