 Have you ever dreamt of a ready-to-use platform to make IoT application prototyping fast and effective? Well, ST makes your dream come true. SensorTile.boxpro is the solution. I am Denise Sancrippo, application development engineer in ST Mem subgroup. The third working mode of SensorTile.boxpro, known as PRO mode, allows you to create custom wireless applications for IoT Mem sensors and wearables by developing code intuitively using the STM32 Open Development Environment, or DE, and ST Microelectronics Function Pack Libraries. Let's get into detail. Download the PRO mode package from ST.com, unzip it and open it. The package contains all the projects available for SensorTile.boxpro. For example, let's open the project called BLE Sensor PNPL, which allows you to send Mem sensor data via Bluetooth and change the frequency at type of sensors considered via Bluetooth. Three different embedded development environments are supported, that are STM32 Cube IDE, Kyle and IAR. For example, open the BLE Sensor PNPL project in IAR. All source code files of the project application, drivers and middlewares are present. Also, connect the terminal emulator, such as TerraTerm, configured at the right speed as described in the user manual. In this way, what happens at the board level can be recorded on the terminal. Let's build the project and upload it to the SensorTile.boxpro. When the board firmware is run, TerraTerm starts displaying log data. Mem sensors are initialized along with Bluetooth. Then, terminal emulator displays the board name of the SensorTile.boxpro, which in this specific case is called BLE NP. Now, open the STBLE Sensor application, which is available on both Google Play and App Store on your smartphone. Click on Connect to Device, select the board and connect via Bluetooth. BLE Sensor PNPL initially shows the output data from the environmental sensors that are temperature and pressure. This data is transmitted at 1 Hz. If you want to change the sampling rate, click on the gear on the right side of the screen. Set the sampling rate to 20 Hz to send data with a higher frequency from the sensors to the application. You can also plot MEMS inertial sensor data in the plot data section. Select the accelerometer and move the tab. The signals along its axis can be immediately displayed. By clicking on the gear in the upper right corner, you can change the accelerometer between LSM6 DSV16X and LIS2 DU12 and the sampling rate. Meanwhile, commands exchanged with sensor tile.boxpro are visible on terminal emulator. By increasing the sampling rate, data is plot at a higher frequency. All projects that take advantage of Bluetooth are compatible with firmware over-the-air update. In fact, the board control section, the firmware currently available on this flash memory bank, is displayed and it is possible to download one of the firmware projects available in the functional package on the other memory bank. Select the bilipiano application which allows you to turn the board into a small piano. The application binary file is automatically uploaded to the other memory bank by clicking the upload button. Once the board has completely received the binary file from the ST BLE sensor application and verified that it was received correctly, the board disconnects from the ST BLE sensor application. At this point, the board will restart considering the BLE piano firmware after changing the memory bank. You can play the piano using the ST BLE sensor graphical interface. If you click on board settings in the board configuration window, you can change the name of the board. For example, we choose ST Micro as the name of the board and click OK. Also, you can retrieve the previous firmware by clicking firmware download in the board control section. The current flash memory bank has the BLE piano project while the previous bank has BLE sensor PNPL. If you want to return to the previous flash memory bank, click swap to this bank. Then click back. The board will reboot upon disconnection considering the BLE sensor PNPL firmware, while the ST Micro board name is retained. Many more example projects are available for promote. Explore them all and create your own application. For more details, visit the sensor tile dot box pro webpage at st.com.