Description
The Pro Trinket combines everything you love about Trinket with the familiarity of the core Arduino chip, the ATmega328. It's like an Arduino Pro Mini with more pins and USB tossed in.
The Pro Trinket has 18 GPIO, 2 extra analog inputs, 28 kB of flash, and 2 kB of RAM.
Like the Trinket, it has onboard USB bootloading support, so you can either program your Pro Trinket over USB or with a FTDI cable just like the Pro Mini and friends.
The Pro Trinket PCB measures only 38 x 18 x 5 mm (without headers) but packs the same capability as an Arduino UNO. So it's great once you've finished up a prototype on an official Arduino UNO and want to make the project smaller.
- Pins #2 and #7 are not available (they are exclusively for USB)
- The Pro Trinket 3V runs at 12MHz, this doesn't affect most projects
- The onboard power supply is a 3.3V regulator and it can provide 150mA output
- You cannot plug shields directly into the Pro Trinket
- There is no Serial-to-USB chip onboard
- The bootloader on the Pro Trinket use 4 kB of FLASH
Here's some handy specifications:
- ATmega328P onboard chip in QFN package running at 3.3 V logic
- 12 MHz clock rate, 28 kB FLASH available
- USB bootloader with a nice LED indicator
- Also has headers for an FTDI port for reprogramming
- Micro-USB jack for power and/or USB uploading
- On-board 3.3 V power regulator with 150 mA output capability and ultra-low dropout
- Power with either USB or external output (such as a battery)
- On-board green power LED and red pin #13 LED
- Reset button for entering the bootloader or restarting the program
- Mounting holes
Dimensions: 38 x 18 x 2 mm
