Adafruit ATSAMD09 Breakout with seesaw

Adafruit seesaw offers a flexible, near-universal converter framework, expanding hardware support for any I2C-compatible microcontroller or microcomputer. Avoid cluttered setups by using seesaw instead of multiple separate I2C modules.The ATSAMD09 breakout equipped with seesaw provides:

* 3 x 12-bit ADC inputs * 3 x 8-bit PWM outputs * 7 x GPIO with selectable pullup/pulldown * 1 x NeoPixel output for up to 63 pixels * 1 x EEPROM with 64 bytes NVM memory * 1 x Interrupt output * 2 x I2C address selection pins * 1 x Activity LED Reconfigure the chip for various peripherals like a UART converter, although not included in the default firmware. Perfect for developing seesaw capabilities, or use it out-of-the-box for enhanced Raspberry Pi or ESP8266 support.Note: Breakouts require a J-Link for bootloader development, with recommendations for an SWD adapter breakout. Compatible with Atmel Studio; potential for compatibility with ARM GCC and a Makefile. Ideal for Maker community experimentation, avoiding custom build support. Supplemental documentation and libraries for major platforms provided in the Adafruit seesaw guide.