Datasheet

Guided Tour

Let me take you on a tour of your Trinket! Each trinket is assembled here at Adafruit and

comes chock-full of good design to make it a joy to use.

Micro-B USB connector - We went with the ultra-common micro-B USB connector

for power and/or USB bootloading. We use a special half SMT/half thru hole connector

with extra big pads so the connector is very strong. It's also a proper USB connector,

so you can use any length cable. Don't forget to use a data+power USB cable if you

want to bootload! Some really inexpensive USB cables are 'power only'

Green Power LED - you'll know that the board is powered up when this bright LED is

lit

Red #13 LED - this LED does double duty. Its connected with a series resistor to the

digital #13 GPIO pin. It pulses or blinks nicely when the Pro Trinket is in bootloader

mode, and its also handy for when you want an indicator LED.

Battery + Input - take your Trinket anywhere and power it from an external battery.

This pin can take up 16V DC input, and has reverse-polarity, over-curent and thermal

protections. The circuitry inside will use either the battery or USB power, safely

switching from one to the other. If both are connected, it will use whichever has the

Industries

https://learn.adafruit.com/introducting-pro-trinket Page 11 of 41