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Bluno M3

SKU: DFR0329

$47.11 AUD, inc GST
$42.83 AUD, exc GST

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Bluno M3
47.11 AUD

SKU: DFR0329

$47.11 AUD, inc GST
$42.83 AUD, exc GST
In stock, with a short lead time. 54 units dispatch in 3 to 5 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Mon, 23rd of Jul with Express Post within Australia.


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.


The Bluno M3 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 new member of Bluno family, Bluno M3 comes with some common Bluno features, such as bluetooth connectivity, Bluetooth wireless programming and mobile phone control support. In addition, thanks to its new 32-bit microcontroller, it has more powerful performance, more storage space and more interface resources.

The ARM processor is famous for its efficient processing performance, but one of the downsides to this is that its developing environment is also quite complicated. Bluno M3, a new product designed by DFRobot, changes this. The rewritten underlying protocol and development environment have been rewritten to accommodate for Arduino language usage, giving it full Arduino compatibility. Bluno M3 has 512K flash memory and 64K SRAM, and the integrated Bluetooth 4.0 (BLE) supports Bluetooth wireless control or Bluetooth wireless programming.
Fig1: The comparision between Arduino and Bluno M3

Fig2: I/O expansion shield for Bluno M3 Specification


  • 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


  • Microcontroller: STM32 F103RET6
  • Clock Speed: 72MHz
  • Bluetooth chip: TI CC2540 (Bluetooth 4.0)
  • Communication Range: 30m
  • Operating Voltage: 3.3V
  • DC Supply: USB Powered or External 7V~12V DC
  • Digital I/O Pins: 39
  • Analog Input Pins: 11 (Multiplex)
  • External Interrupt: 39 (D0~D38)
  • I2C/IWC: 30 (Default SDA), 29 (Default SCL)
  • SRAM: 64K
  • Flash: 512K (Customizable Flash assignment, refer to Flash chapter for more info)
    • Default User Code repository: 492K
    • Default User Data repository: 20K
    • SPI 12(MISO), 11(MOSI), 13(SCK)
    • SPI1 33(MISO), 34(MOSI), 32(SCK)
  • Serial Port: 5 (Serial1/Serial2/Serial3/Serial4/Serial5)
    • Serial1 0(Rx1) & 1(Tx1)
    • Serial2 22(Rx2) & 21(Tx2)
    • Serial3 30(Rx3) & 29(Tx3)
    • Serial4 8(Rx4) & 9(Tx4)
    • Serial5 54(Rx5) & 53(Tx5)
  • Dimensions: 68mm x 31mm


Parts List

  • Bluno M3 Microcontroller x1
Documentation and Resources:

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!