The maker boards are based on a 32-bit STMicroelectronics STM32F4 Arm Cortex-M4 microcontroller with 512 kByte Flash and 96 kByte SRAM. The STM32F4 chip is supported by several common platforms, including Arduino, Arm mbed, MicroPython, Keil, GCC, and FreeRTOS, as well as GHI’s TinyCLR OS.
TinyCLR OS enables managed .NET development and debugging using Visual Studio with support for programming in .NET, C# and Visual Basic over a USB cable with no additional hardware required. TinyCLR OS also has the necessary drivers for secure Wi-Fi connections through a .NET-compatible interface.
The FEZ boards are available with an optional onboard Wi-Fi module.