Adafruit ATtiny817 Breakout with seesaw - STEMMA QT / Qwiic

This breakout board packs the power of the ATtiny817, part of the next generation of AVR microcontrollers. It serves as a development platform with just enough hardware to get the chip operational. The board also features Adafruit's versatile seesaw technology, transforming it into a universal converter for I2C-capable devices.

Designed with STEMMA QT connectors, it offers plug-and-play I2C support, acting as both a controller and a peripheral. The ATtiny817 microcontroller boasts an 8-bit core, 8KB flash memory, and a frequency that can reach 20MHz. Capable of running on voltages between 2V and 5V, the flexibility of operation is assured, especially with a 3.3V regulator and switchable voltage options.

Out of the box, the board comes pre-programmed with a seesaw peripheral code, transforming it into an I2C-controllable assistant with extensive capabilities. Expect up to 14 GPIOs, 9 ADC inputs, 5 PWM outputs, and a NeoPixel light channel for complex lighting tasks. It also includes EEPROM for data storage, an interrupt output, and activity LED, all reprogrammable with UPDI for flexibility in custom solutions.

Though it’s essential to have a UPDI programmer for custom development, the board offers abundant resources with libraries for multiple coding environments. Ideal for quick adaptation during silicon shortages, this breakout board bridges the gap between creativity and functionality in microcontroller design.