Naneato 3226 – Small ATtiny Microcontroller Board

This is one of the smallest and still practical microcontroller boards out there. Like our Naneato M0, it’s only slightly longer than a DIP-8 component footprint, and still makes room for 5 I/O pins, a serial converter, a voltage regulator, a reset button, and a power indicating LED. Because the pins are spaced 2.54mm (0.1″), it can still fit in a breadboard and use standard jumper wires. Normally our boards use a USB-C connector, but because of it’s small size a Micro-USB port is used instead.

Even though it is so small, it still has a lot of power using the latest and greatest from the ATtiny series, the ATtiny3226. The microcontroller comes from the newer 2-series ATtiny’s, and compared to an ATtiny85, it is quite an upgrade. It has 32KB of flash memory compared to the 8KB of an ATtiny85, which is also the same amount of memory on an Arduino UNO R3’s ATmega328p. It also has 3072B of SRAM (compared to 512B on an ATtiny85, and 2048B on an ATmega328p), and at 5V the ATtiny3226 runs at 20MHz. If you are looking for even more power, check out out Naneato M0 board that uses an STM32F042G.

You can program the board in the Arduino IDE using our boards package. When code is uploaded, the reset button has to be pressed as there is no auto reset circuit. You can power the board with up to 24V on the Vin pin, or power it with a regulated 5V supply on the VCC pin. If powering the board through the Vin pin, the voltage regulator can output up to 500mA to VCC. The board should only be powered by one source at a time.