Netduino 3 Processor: 168MHz Cortex-M4 MCU; 1MB flash; 256KB RAM. Standard I/O: 22 GPIOs combined with SPI, I2C, 4 UARTs (1 RTS/CTS), 6 PWM channels and 6 12-bit ADC channels. Advanced I/O: 3 GoBus 2.0 ports for plug-and-play components. MicroUSB cable and GoBus cable included. Design files and source code are included. .NET Micro Framework combines the ease of high-level coding and the raw IO features of microcontrollers.