Pico-BLE

Pico-BLE

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Primary Attribute Category: RPi Pico {{{userDefinedInfo}}}: {{{userdefinedvalue}}} Brand: Waveshare

Website International: Website Chinese: 官网

Onboard Interfaces uart

Related Products

Instruction

Note

The module can only be connected to the mobile phone currently.

Product introduction

The Pico-BLE is a dual-mode Bluetooth 5.1 expansion module designed for Raspberry Pi Pico, which is controlled via UART AT commands, with SPP and BLE support. Combined with the Raspberry Pi Pico, it can be used for Bluetooth wireless communication applications.

Product Features

• Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series
• Controlled via UART AT commands, get started quickly
• Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)

Specifications

• Input voltage: 3.3V/5V
• Communication: UART
• Communication rate up to 1000000bps
• Dimensions: 56.5 × 21mm

Pinout

Product Size

Get Started with Pico

Firmware Download

MicroPython Firmware Download

C_Blink Download

Text Tutorial（to be continued...)

Basic introduction

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Raspberry Pi Pico Basic introduction
【MicroPython】machine.Pin function
【MicroPython】machine.PWM function
【MicroPython】machine.ADC function
【MicroPython】machine.UART function
【MicroPython】machine.I2C function
【MicroPython】machine.SPI function
【C/C++】 Windows Tutorial 1——environment setup
【C/C++】 Windows Tutorial 2——new project

Open Source Demo

MircoPython Video Firmware (github)
MicroPython Firmware/Blink demo（C）
Raspberry Pi C/C++ demo example (github)
Raspberry Pi micropython demo example (github)

Examples

For the Pico-BLE module, we provide an serial example. Hereby we take C codes to explain the function.

Hardware interface

BLE.c

The Bluetooth module initialization function mainly judges whether the Bluetooth module is successfully connected to the mobile phone, whether the notify function is enabled, querying the baud rate of the Bluetooth module, judges whether it is in low power mode, name, address, and modifying the name of the module

void BLE_Init()

Execute and process BLE commands

uint8_t Cmd_Process(uint8_t *data)
    data: the address of the command pointer to send

Transparent transmission receiving function, what data the mobile phone sends to the module, the module receives and returns the same data through this function

void UART_RX()     Query receive
void UART_RX_IRQ() Interrupt receive

Parameter modification

BLE.h

#define UART_ID uart0       Pico serial port selection
#define BAUD_RATE 115200    Serial port baud rate selection
#define DATA_BITS 8         Serial port data bits
#define STOP_BITS 1         Serial port data stop bits
#define PARITY UART_PARITY_NONE  Whether the serial port performs parity check
#define UART_TX_PIN 0       Pico serial port TX pin selection
#define UART_RX_PIN 1       Pico serial port RX pin selection
#define BLE_MODE_PIN 15     Bluetooth module status detection pin

Module command

CMD.h

For specific use, please refer to the user manual.

Demonstration

Mobile Phone APP Demo

Connect Pico and Pico-BLE to open the python program and run

Open the PicoGO software on the mobile phone (this is just a demonstration, you can download any Bluetooth APP in the app store)

Click on Bluetooth Control

Click Search in the upper right corner

Click the serial port mode (the request pairing interface will pop up later, no password is required)

Click pairing, the following will appear on the computer and mobile phone


Enter the data on the mobile phone and click send (the interface you send will be displayed on the computer)


PS: APPs using the BLE protocol on the mobile phone need to open the notify interface

Computer AT command demonstration

Use the USB to serial port module to connect the computer and Pico-BLE, open the SSCOM software, select the corresponding baud rate (the default is 115200), enter the command, and enable "carriage return and line feed" (must be, otherwise the command will be invalid)

The above command is a reset command, please refer to the user manual for more commands

Supporting information

User manual

• Pico-BLE User manual

Documentation

• Schematic

Demo codes

• Demo codes

Raspberry Pi Resources

• Raspberry Pi Pico Get Started with MicroPython on Raspberry Pi Pico
• Official website of Pico
• Getting started with Pico
• Pico C SDK
• Pico Python SDK
• Pico Pinout
• Pico Datasheet
• RP2040 Datasheet
• RP2040 Hardware design

Examples

• MicroPython firmware/Blink demo(C)
  
• Raspberry Pi official Pico data link
  
• MircoPython demo video(github)
  
• MicroPython firmware/Blink demo（C）
  
• Raspberry Pi C/C++ demo (github)
  
• Raspberry Pi micropython demo (github)
  

Software

• Serial debugging assistant Windows
• PicoGo APP

FAQ

Question: Can Pico-BLE be used as a host?

Answer: No, currently only the slave mode is supported

Support

If you require technical support, please go to the Support page and open a tickets.