Adafruit Pro Trinket - 5V 16MHz

The Pro Trinket 5V blends the essence of the Trinket with the reliability of the ATmega328 chip, packed in a compact size of 1.5" x 0.7" x 0.2". With 18 GPIO, two extra analog inputs, 28K of flash, and 2K of RAM, it offers more flexibility for intricate projects.

This versatile board can be programmed using the Arduino IDE, with support for 99% of standard Arduino sketches. Despite its small size, it mirrors much of the functionality found in an Arduino UNO.

Featuring a USB bootloader, a Micro-USB jack for easy connectivity, and optional FTDI reprogramming, it suits a variety of programming needs. Built-in green power and red LED indicators provide essential status feedback.

While Pro Trinket does not support direct shield connection and uses a USB-only connection for code uploads, it remains an effective tool for reducing prototype size. An onboard 5V power regulator, with up to 16V input capability, ensures reliable power management, complete with reverse-polarity and current-limit protection.