The module can only be connected to the mobile phone currently.
V1.1 (purchased after 2022/02/20), supports connection with Raspberry PI.
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.
- 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).
- Input voltage: 3.3V/5V
- Communication: UART
- Communication rate: up to 1,000,000 bps
- Dimensions: 56.5 × 21mm
Get Started with Pico
MicroPython Firmware Download
For the Pico-BLE module, we provide an serial example. Hereby we take C codes to explain the function.
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.
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 with this function.
void UART_RX() Query receive void UART_RX_IRQ() Interrupt receive
#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
For specific use, please refer to the user manual.
Mobile Phone APP Demo
Connect Pico and Pico-BLE to open the python demo 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 the 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.
V1.1 (Purchased after 2022/02/20)
Includes all the features of the previous version, with the following new features.
Raspberry Pi Connection
Input "bluetoothctl" to enter the Bluetooth interactive mode.
Input "Show" to check the Bluetooth status.
"Powered: yes" means the Bluetooth can be opened.
"Discoverable: no" means it cannot be searched by other devices.
"Pairable: yes" runs to pair.
powered yes opens the Bluetooth, powered no closes the Bluetooth pairable yes allows it to pair, pairable no means no pairing
Input "scan on" to query the Bluetooth.
Input "pair [MAC]" to pair the Bluetooth.
When pairing SPP, input the contents according to the requirements if the pairing code is set.
When pairing BLE, you can directly observe whether it is paired successfully.
Input "exit" to exit the Bluetooth interactive mode.
Automatically connect to the Bluetooth corresponding to the address.
sudo rfcomm conn /dev/rfcomm0 [MAC]
When it is successfully created the label characters are shown.
The port is already in use when the following content is shown.
After successfully creating, the Raspberry Pi will automatically generate a serial port number, rfcomm0.
Send the data
echo 1234541 > /dev/rfcomm0
Read the data.
- 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
- 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)
If you require technical support, please go to the Support page and open a ticket.