SDT64B has been designed by Sigma Delta Technologies for easy prototyping of IoT devices. The coin-sized board is equipped with ethernet and high-performance MCU enabling direct firmware update. Direct firmware update makes it ideal for smart connected devices. MK64FN1M0VDC12 MCU features ARM® Cortex® -M4F core, with 256KB RAM and 1MB flash memory. The board provides peripherals of three UART interfaces, three SPI interfaces, two I²C interfaces, seven GPIO pins, two 12-Bit ADCs and one 12-Bit DAC.