EFR32 Bluetooth Application Examples

Silicon Labs Bluetooth Applications

The Silicon Labs Bluetooth stack allows for a wide variety applications to be built on its foundation. This repo showcases some example applications using the Silicon Labs Bluetooth stack.

This repository provides both SLCP projects (as External Repositories) and SLS projects as standalone projects, which are configured for development boards.

Examples

No	Example name	Link to example
1	Bluetooth - AI/ML Hand Signal Recognition (MLX90640)	Click Here
2	Bluetooth - People Counting (AK9753)	Click Here
3	Bluetooth - Door Lock RFID (ID-12LA)	Click Here
4	Bluetooth - Soc Blinky - Sparkfun Thing Plus Matter - MGM240P	Click Here
5	Bluetooth - Dosimeter (Sparkfun Type 5)	Click Here
6	Bluetooth - Apple Notification Center Service	Click Here
7	Bluetooth - CO Monitor (MQ7)	Click Here
8	Bluetooth - Controlling LED from Smartphone	Click Here
9	Bluetooth - Serial Port Profile (SPP)	Click Here
10	Bluetooth - Reporting Battery Voltage	Click Here
11	Bluetooth - Door Lock Fingerprint (A-172-MRQ)	Click Here
12	Bluetooth - HID Keyboard	Click Here
13	Bluetooth - Log System	Click Here
14	Bluetooth - Multi-Central Multi-Peripheral Dual Topology	Click Here
15	Bluetooth - Man-In-The-Middle	Click Here
16	Bluetooth - Uploading images to multi-slots	Click Here
17	Bluetooth - OTA Firmware Update in User Application	Click Here
18	Bluetooth - Container Level Detection (VL53L1X)	Click Here
19	Bluetooth - EM4 Energy Mode in iBeacon Application	Click Here
20	Bluetooth - Thermometer Example With EFR32 Internal Temperature Sensor	Click Here
21	Bluetooth - Accelerometer (BMA400) - I2C	Click Here
22	Bluetooth - Accelerometer (BMA400) - SPI	Click Here
23	Bluetooth - Smart Band Application	Click Here
24	Bluetooth - Secure Attestation	Click Here
25	Bluetooth - RSSI based room finding	Click Here
26	Bluetooth - RFID Notify	Click Here
27	Bluetooth - Optimized Energy Consuming Sensor	Click Here
28	Bluetooth - Optimized Energy Consuming Switch	Click Here
29	Bluetooth - PAwR Thermometer	Click Here
30	Bluetooth - Joystick 7seg	Click Here
31	Bluetooth - Barometer I2C	Click Here
32	Bluetooth - Distance Monitor (VL53L1X)	Click Here
33	Bluetooth - HRM/Sp02 Measurement (MAXM86161)	Click Here
34	Bluetooth - NFC Pairing	Click Here
35	Bluetooth - Door Lock	Click Here
36	Bluetooth - BTHome v2 - Humidity and Temperature Monitor (SHTC3)	Click Here
37	Bluetooth - Movement Detection (BMA400)	Click Here
38	Bluetooth - People Counting (VL53L1X)	Click Here
39	Bluetooth - Air Quality Monitor	Click Here
40	Bluetooth - Wireless Direct Test Mode (DTM)	Click Here
41	Bluetooth - Ir Thermometer 3 Click (MLX90632)	Click Here
42	Bluetooth - BTHome v2 - Internal Temperature Monitor	Click Here
43	Bluetooth - BTHome v2 - Switch	Click Here
44	Bluetooth - Ethernet Gateway	Click Here
45	Bluetooth - Continuous Glucose Monitoring	Click Here
46	Bluetooth - BTHome v2 - Light	Click Here
47	Bluetooth - Data Logger SD Card	Click Here
48	Bluetooth - Thermostat (SHTC3)	Click Here
49	Bluetooth - Secure SPP over BLE	Click Here
50	Bluetooth - Explorer Kit I2C Bio Sensor	Click Here
51	Bluetooth - Blood Glucose Meters	Click Here
52	Bluetooth - HID Tripwire	Click Here
53	Bluetooth - Ir Generator	Click Here
54	Bluetooth - BTHome v2 - Server Example	Click Here
55	Bluetooth - HID Multiple Reports	Click Here
56	Bluetooth - ESL Tag with E-Paper display 1,54inch 200x200 dots from Mikroe	Click Here
57	Bluetooth - RSSI - based position estimation for PEPS	Click Here
58	Bluetooth - BTHome v2 - PIR Alarm	Click Here
59	Bluetooth - DW3000 TWR demo	Click Here
60	Bluetooth - BThome v2 - People Counting (VL53L1X)	Click Here

Requirements

1. Silicon Labs EFR32 Development Kit
2. Simplicity Studio 5
3. Compatible GSDK version that specified in each project's readme file. You can install it via Simplicity Studio or download it from our GitHub gecko_sdk
4. Compatible Third-Party Hardware Drivers extension that also specified in each project's readme file, available here

Working with Projects

1. To add an external repository, perform the following steps.

   • From Simpilicity Studio 5, go to Preferences > Simplicity Studio > External Repos. Here you can add the repo https://github.com/SiliconLabs/bluetooth_applications.git.

   • Cloning and then selecting the branch, tag, or commit to add. The default branch is Master. This repo cloned to <path_to_the_SimplicityStudio_v5>\developer\repos\

2. From Launcher, select your device from the "Debug Adapters" on the left before creating a project. Then click the EXAMPLE PROJECTS & DEMOS tab -> check bluetooth_applications under Provider to show a list of Bluetooth example projects compatible with the selected device. Click CREATE on a project to generate a new application from the selected template.

Legacy Projects - Importing *.sls projects

1. Place the *.sls file(s) to be imported in a folder.

2. From Simpilicity Studio 5, select File > Import, select the folder containing *.sls file(s). Select a project from the detected projects list and click on Next. Name the project and click Finish.

See Import and Export for more information.

Porting to Another Board

To change the target board, navigate to Project -> Properties -> C/C++ Build -> Board/Part/SDK. Start typing in the Boards search box and locate the desired development board, then click Apply to change the project settings. Ensure that the board specifics include paths, found in Project -> Properties -> C/C++ General -> Paths and Symbols, correctly match the target board.

Bootloader

Note that example projects do not include bootloaders regardless of Bluetooth-based example projects requiring a bootloader on the device to support device firmware upgrade (DFU). To have a running application, you should either

• flash the proper bootloader or
• remove the DFU functionality from the project.

If your application does not require adding a bootloader, remove the DFU functionality by uninstalling the Bootloader Application Interface software component including all of its dependents. This automatically puts your application code to the start address of the flash, which means that a bootloader is no longer needed. Note that you are not able to upgrade your firmware after the removal of the DFU functionality.

If you want to add a bootloader, you can either

• Create a bootloader project, build it and flash it to your device. Note that different projects expect different bootloaders:

  • for NCP and RCP projects create a BGAPI UART DFU type bootloader
  • for SoC projects on Series 1 devices create a Bluetooth in-place OTA DFU type bootloader - or any Internal Storage type bootloader
  • for SoC projects on Series 2 devices create a Bluetooth Apploader OTA DFU type bootloader

• or run a pre-compiled demo on your device from the Launcher view before flashing your application. Pre-compiled demos flash both bootloader and application images to the device. Flashing your own application image after the demo overwrites the demo application, but leave the bootloader in place.

  • For NCP and RCP projects, flash the Bluetooth - NCP demo.
  • For SoC projects, flash the Bluetooth - SoC Thermometer demo.

Important Notes:

• when you flash your application image to the device, use the .hex or .s37 output file. Flashing .bin files may overwrite (erase) the bootloader.

• On Series 1 devices (EFR32xG1x), both first stage and second stage bootloaders have to be flashed. This can be done at once by flashing the -combined.s37 file found in the bootloader project after building the project.

• On Series 2 devices SoC example projects require a Bluetooth Apploader OTA DFU type bootloader by default. This bootloader needs a lot of flash space and does not fit into the regular bootloader area, hence the application start address must be shifted. This shift is automatically done by the Apploader Support for Applications software component, which is installed by default. If you want to use any other bootloader type, you should remove this software component in order to shift the application start address back to the end of the regular bootloader area. Note, that in this case you cannot do OTA DFU with Apploader, but you can still implement application-level OTA DFU by installing the Application OTA DFU software component instead of In-place OTA DFU.

For more information on bootloaders, see UG103.6: Bootloader Fundamentals and UG489: Silicon Labs Gecko Bootloader User's Guide for GSDK 4.0 and Higher.

Documentation

The official Bluetooth documentation is available on the Developer Documentation page.

Reporting Bugs/Issues and Posting Questions and Comments

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of this repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of this repo.

Disclaimer

The Gecko SDK suite supports development with Silicon Labs IoT SoC and module devices. Unless otherwise specified in the specific directory, all examples are considered to be EXPERIMENTAL QUALITY which implies that the code provided in the repos has not been formally tested and is provided as-is. It is not suitable for production environments. In addition, this code will not be maintained and there may be no bug maintenance planned for these resources. Silicon Labs may update projects from time to time.