You can use an FTDI converter to plug into the serial port for a serial connection. There is no USB-> Serial converter on the board (to keep the Trinket Pro as small and inexpensive as possible).You can directly connect shields to the Trinket Pro.The 5V regulator on the board can deliver 150mA (and not 800mA).Pins # 2 and # 7 are no longer available (they are exclusively reserved for the USB port).Here are some things to consider when adapting an Arduino Uno sketch for Trinket Pro:
We tested the Linux 64 bit distribution on our Linux Mint 17 (Mate) successfully! Adapt Arduino sketch
It is therefore not surprising to learn that the Trinket PRO is programmable using Arduino IDE (Arduino development environment) but that 99% of Arduino projects will work immediately on a Trinket Pro!īy translating the Trinket Pro tutorial, we had the pleasure of discovering modified versions of the Arduino IDE environment for Windows, Mac and Linux (Ubuntu) supporting Gemma/Trinket/Trinket Pro. The Atmega328P operates at the same speed and the same voltage. The Trinket PRO 5V uses an Atmega328P integrated circuit which is the same chip as that used on an Arduino UNO/Duemilanove/Mini/ etc. It's great because after your prototyping on an official Arduino UNO, you can make your project very small by replacing it with a Trinket Pro. The Trinket PRO board measures 38mm x 18mm x 2mm (without connector) but offers functionalities similar to that of an Arduino UNO. AdaFruit opted for an Optiboot support, it is therefore possible to program your Trinket Pro via USB or using an FTDI cable as is the case for a Pro Mini. Like the Trinket, there is USB bootloader, the board is equipped with a microUSB connector. This is the reason why AdaFruit designed the Trinket Pro with 18 GPIOs, 2 additional analog inputs, 28K of FLASH and 2K of RAM. The Trinket is a year old and it's a great platform to carry out tons of projects, but sometimes you just need more pins, more FLASH or more RAM.