esp-idf/examples/bluetooth/blufi

Supported Targets	ESP32	ESP32-C2	ESP32-C3	ESP32-C6	ESP32-S3

ESP-IDF Blufi Example

This demo shows how to use the Blufi to configurate the Wi-Fi connection to AP.

The BluFi for ESP32 is a Wi-Fi network configuration function via Bluetooth channel. It provides a secure protocol to pass Wi-Fi configuration and credentials to the ESP32.

How to Use Example

Before project configuration and build, be sure to set the correct chip target using:

idf.py set-target <chip_name>

To test this demo, you need to prepare a mobile phone with blufi application installed. You can download the blufi application from Android version and iOS version.

Blufi is completely open source, here is the download link:

• Blufi source code
• BluFi protocol
• iOS source code
• Android source code
• Bluetooth Network User Guide CN

Hardware Required

• A development board with ESP32/ESP32-C3/ESP32-S3/ESP32-C2 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
• A USB cable for Power supply and programming

See Development Boards for more information about it.

Build and Flash

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

I (0) cpu_start: Starting scheduler on APP CPU.
I (708) wifi:wifi driver task: 3ffbb118, prio:23, stack:6656, core=0
I (708) system_api: Base MAC address is not set
I (708) system_api: read default base MAC address from EFUSE
I (718) wifi:wifi firmware version: 44799ff
I (718) wifi:wifi certification version: v7.0
I (718) wifi:config NVS flash: enabled
I (718) wifi:config nano formating: disabled
I (728) wifi:Init data frame dynamic rx buffer num: 32
I (728) wifi:Init management frame dynamic rx buffer num: 32
I (738) wifi:Init management short buffer num: 32
I (738) wifi:Init dynamic tx buffer num: 32
I (748) wifi:Init static rx buffer size: 1600
I (748) wifi:Init static rx buffer num: 10
I (748) wifi:Init dynamic rx buffer num: 32
I (758) wifi_init: rx ba win: 6
I (758) wifi_init: tcpip mbox: 32
I (768) wifi_init: udp mbox: 6
I (768) wifi_init: tcp mbox: 6
I (768) wifi_init: tcp tx win: 5744
I (778) wifi_init: tcp rx win: 5744
I (778) wifi_init: tcp mss: 1440
I (788) wifi_init: WiFi IRAM OP enabled
I (788) wifi_init: WiFi RX IRAM OP enabled
I (798) phy_init: phy_version 4670,719f9f6,Feb 18 2021,17:07:07
I (908) wifi:mode : sta (fc:f5:c4:3c:62:90)
I (908) wifi:enable tsf
I (908) BTDM_INIT: BT controller compile version [1342a48]
I (1198) BLUFI_EXAMPLE: BD ADDR: fc:f5:c4:3c:62:92

I (1198) BLUFI_EXAMPLE: BLUFI VERSION 0102

I (1198) BLUFI_EXAMPLE: BLUFI init finish

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.