• EUR€
  • £GBP
  • $USD

Monthly Free Trial - Bluno M3+ IO Expansion Shield ($44.85 Value)

DFRobot Jan 14 2016 299


Good news, Here’s your chance to WIN and TEST OUT the newest Bluno M3 and Expansion Shield FOR FREE!

We prepared FIVE sets for those who are lucky enough.

How To Participate

To participate, please leave the message in comment or drop us an email ([email protected]) with following information: 

1. Your contact address 
2. Your project idea with the trial product 

Don't forget to post us your review/project afterwards! A detailed feedback would award you a privilege on our next activity. 

PLEASE NOTE this ends in TEN DAYS (Jan 24th, 2016), so make sure you don’t miss this opportunity!

Result would be released on January 25, 2016. Please keep an eye on our website, or our social channels.

What You'll Get


Bluno M3

Bluno M3 - A STM32 ARM with Bluetooth 4.0 is a new Arduino compatible prototyping platform based on a 32-bit ARM processor. This microcontroller integrates a Bluetooth 4.0 chip and a STM32 ARM controller on the board. As a member of Bluno family, Bluno M3 inherits most common Bluno features, such as bluetooth connectivity, Bluetooth wireless programming and mobile phone controlling. In addition, thanks to its new 32-bit microcontroller, Bluno M3 has a much more powerful performance, more storage space and more interface resources.


  • Supports Bluetooth Wireless Programming
  • Supports Bluetooth HID
  • Supports AT commands to configure BLE
  • Supports firmware upgrades
  • Supports mobile control
  • Supports firmware updates
  • Compatible with Arduino Uno pin mappings
  • Supports Android and IOS applications, open source code, suitable for secondary development by the user


Bluno M3 with IO Expansion Shield

The IO Expansion Shield for Bluno M3 is a powerful expansion shield for the Bluno M3. The breakouts for digital pins range from D0 to D38, including 5 UARTS, 8 PWM pins and 8 analog pins. The IO Expansion shield uses a convenient color coded 3 pin format for signal, voltage and ground that is useful if used with a large range of devices. The IO expansion shield also integrates an external power connector for servos - if you need to power a large array of servos, use the screw terminals to connect your power supply and drive them directly from your Bluno M3. It will switch to the right power source automatically. An intelligent power regulator allows you to connect a battery and USB cable simultaneously, and an on-board voltage switch makes it easy to change the output voltage, making 3.3V or 5V sensors compatible.


  • 39 GPIO pins with color-coded headers
  • 8 PWM pins
  • 8 Analog Input pins
  • 5 UARTS
  • 1 I2C/IIC
  • 1 SPI
  • External power connector for servos
  • 3.3V/5V power switch
  • Dimensions: 69mm * 54mm (2.7in * 2.1in)
  • Weight: 40g

Good luck!
DFRobot Team