Adafruit Development Boards AVR Development

Adafruit METRO 328 with Headers [ATmega328] [AF-2488]

Get it by Tuesday, Jun 28th

This is the Adafruit METRO Arduino-Compatible - with headers.  It's a fully assembled and tested microcontroller and physical computing board with through-hole headers attached.  If you don't want a Metro with the headers attached for ...

Adafruit METRO 328 without Headers [ATmega328] [AF-2466]

We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we ...

Adafruit Pro Trinket - 3V [AF-2010]

Get it by Tuesday, Jun 28th

We still love the Pro Trinket but the bit-bang USB technique it uses doesn't work as well as it did in 2014. So while we still carry the Pro Trinket, we really recommend using the Metro Mini (ATmega328 @ 5V 16 MHz), ItsyBitsy 32u4 5V 1...

Adafruit Pro Trinket - 5V [AF-2000]

Get it by Tuesday, Jun 28th

We still love the Pro Trinket but the bit-bang USB technique it uses doesn't work as well as it did in 2014. So while we still carry the Pro Trinket, we really recommend using the Metro Mini (ATmega328 @ 5V 16 MHz), ItsyBitsy 32u4 5V 1...

Trinket 6-Pack - 3 x 3.3V and 3 x 5V Trinkets [AF-1509]

Get it by Thursday, Jul 7th

We're no longer selling this pack of Trinket 3V+5V, we recommend our Trinket M0 which has better USB support, way faster processor, a ton more memory and CircuitPython support! Be the life of your (hackerspace) party when you show up w...

Adafruit Trinket - 5V [AF-1501]

Get it by Tuesday, Jun 28th

As of October 9th, 2015 the 5V Trinket comes with a micro-USB connector instead of a mini-USB connector!Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little ...

Adafruit 6-pin AVR ISP Breadboard Adapter Mini Kit [AF-1465]

Get it by Thursday, Jul 7th

Programming AVR?Always Googling the pinout?Well, now no longer! It's rare to find a mini kit so elegant, it deserves its own Haiku. A simple breakout, 2x3 box header in the center, two 1x3's on the side. Plugs into any breadboard for nea...

Teensy++ (AT90USB1286 USB dev board) + header [AT90USB1286] [AF-731]

The Teensy++ is a complete USB-based microcontoller development system, in a very small footprint! All programming is done via the USB port. No special programmer is needed, only a standard "Mini-B" USB cable and a PC or Macintosh with a...

Atmega32u4 Breakout Board [AF-296]

Toss out those FTDI cables and go USB-native with the ATmega32u4. After many months of back-orders, we finally received a shipment of these little guys and are excited to offer our breakout board. The little dev board keeps it simple, ...

Teensy (ATmega32u4 USB dev board) 2.0 [ATmega32u4] [AF-199]

Get it by Thursday, Jul 7th

The Teensy 2.0 is a complete USB-based microcontoller development system, in a very small footprint! All programming is done via the USB port. No special programmer is needed, only a standard "Mini-B" USB cable and a PC or Macintosh wi...