DFR0329 Datasheet DFR0329 | P1-P3

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BlunoM3SKU:DFR0329

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Bluno M3

Contents

 1 Overview

 2 Specification

 3 Board Overview

 4 Bluno M3 Features

4.1 Differences between Bluno M3 and Arduino

 5 QuickStart

5.1 Setup Software Development Environment

5.2 Install Bluno M3 Driver

5.3 Blink an LED

5.4 Wireless Programming

Overview

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. This board is suitable for robotic

control or IOT applications and has a good balance between Arduino and ARM processing.

Specification



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 (Multiplexing Pins)

 External Interrupt: 39 (D0~D38)

 I2C/IWC: 30 (Default SDA), 29 (Default SCL)

 SRAM: 64K

 Flash: 512K (Customizable Flash assignment, refer to Flash chapter）

Default User Code repository: 492K

Default User Data repository: 20K

 SPI: SPI,SPI1

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

The STM32 is a 3.3V processor. Do NOT use any 5V sensor/module with it in case of

burning it!

BoardOverview

 M3 Hardware UART1 connects to RX1/TX1 and Bluetooth communications port

 SCL/SDA is a default internal IIC interface, compatible with Arduino IIC use-pattern

 "~": PWM: pins with this mark can output a PWM signal (refer to PWM chapter for more

information)

 "Ax": Analog input pins (note: some analog pins and digital pins are using the same GPIO)

 "SWD": STM32 debug port

 For pin definitions and functions refer to the MORE section: Bluno M3 Reference manual ——

GPIO

https://www.dfrobot.com/wiki/index.php/Bluno_M3_Reference_Manual#GPIO

BlunoM3Features

DifferencesbetweenBlunoM3andArduino

1. Overview

The Bluno M3 is different to previous Bluno boards as it is based on a 32bit ARM Cortex-M3

core architecture. A regular Arduino is based on an 8bit AVR core. Due to these differences,

machine commands are also different. Arduino IDE uses avr-gcc, whilst Bluno M3 uses arm-

none-eabi-gcc.

2. Hardware Ports

 ADC: Pins marked with "Ax" (e.g. A0, A6, A10) can be used as Analog input ports

 Uart: 5 Serial Ports in all (Serial1/Serial2/Serial3/Serial4/Serial5). Bluetooth and RX1/TX1 use

Serial1

 SWD: STM32 debug port, you can use debug hardware based on STM32 on these pins

 GPIO: All pins can be used as digital I/O, including analog pins

3. Language and Library Software Differences

 ADC: Bluno M3 provides two kinds of ADC mode: one is compatible with Arduino, the other is

Bluno M3's unique way: adcMode() and adcRead(), which makes it more powerful. Refer to

Bluno M3 Bluno M3 Reference manual —— ADC ADC Application.

 PWM: Bluno M3 provides two kinds of PWM mode, one is compatible with Arduino, the other is

Bluno M3's unique way: pwmMode() and pwmWrite(),which makes it more powerful. Please

refer to Bluno M3 Bluno M3 Reference manual —— PWM PWM Application.

 UART: There are 5 UARTs on the board. UART1 is corresponds to the Board RX1 and TX1, and

it is also connected with the Bluetooth communicating port.

4. Bluno M3 Reference

This section introduces basic information, methods of application, function interfaces and uses.

e.g. GPIO, PWM, UART, SPI, I2C, etc. For the further information, please check

Bluno M3

Reference Manual

https://www.dfrobot.com/wiki/index.php/Bluno_M3_Reference_Manual

P1-P3 P4-P6 P7-P8

DFR0329

Mfr. #:

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Manufacturer:

DFRobot

Description:

Development Boards & Kits - ARM Bluno M3

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DFR0329