The AVR32DA28-I/SO is an 8-bit microcontroller (MCU) manufactured by Microchip. It is a 32KB MCU with 28-pin, 85C, SOIC packaging in a tube package. This chip features an internal oscillator and multiple power-saving modes, allowing it to operate at a wide range of supply voltages. It is suitable for applications such as sensors, alarms, and automation systems due to its small size and low power consumption. Its periperptals, such as USART, SPI, I2C, and ADC, allow for the implementation of complex systems. The chip’s AVR instruction set and integrated bootloader enable easy and fast programming. Additionally, it has a wide range of features such as an integrated EEPROM, which makes it an ideal choice for embedded applications.