Quail mainboard

Quail is an STM32-powered development solution for building hardware prototypes with click boards and C# managed code.

It brings together click boards and Microsoft’s .NET Micro Framework for embedded devices (NETMF). Write code for your Quail projects in Microsoft Visual Studio (free in the community edition); drivers for individual click™ boards are provided by the MikroBUS.NET team.

Hardware-wise, Quail has 4 mikroBUS™ sockets for click board connectivity, along with 24 screw terminals for connecting additional electronics and two USB ports (one for programming, the other for external mass storage). The board runs on a 5V power supply.

You can buy Quail from MikroElektronika and other distributors as well.

See it on MikroE

Key features


  • STM32F427
  • Runs Microsoft .Net Micro Framework out of the box
  • Real-time clock
  • USB host
  • 8 MB Flash
  • exposes 24 GPIO +I²C and SPI on screw terminals

MikroBus sockets

4 MikroBus sockets are available and you can even stack Click boards !

And furthermore lots of screw terminals for your prototyping and final mounting needs.

High Quality

Building on the awesome work by pioneers in the industry of embedded solutions, the Mikrobus.Net team has managed to create a professional sturdy and flexible hardware solution to support sophisticated development of both the hardware and software side of devices in the future.

What is on the board

  1. RTC battery connector
  2. mikroBUS™ sockets 1, 2, 3 and 4
  3. 3.3V voltage regulator
  4. 100pin STM32F427 MCU
  5. 32.768 KHz crystal oscillator
  6. USB A connector
  7. 12 MHz crystal oscillator
  8. Flash memory (64 Mbit)
  9. Connecting terminals
  10. Additional indication LEDs
  11. USB Mini-B connector
  12. Power indication LED
  13. External power supply (+20V max)
  14. 5V voltage regulator
  15. BOOT button
  16. RESET button
Learn More
Overview of Quail

Put your ideas to life in minutes!

Quail makes it easy to quickly insert some of your click modules and prototype a new little invention of yours!

Its easy as ever before to combine modular electronics and get started programming it in c#.

Coding with Quail