 This setup emulates a BLE-connected ring bell transmitting video and audio. When presence is detected thanks to a time-of-flight sensor, the camera and microphone are turned on and start streaming both audio and video data towards the cold receiver, which is in our case a mobile phone with dedicated apps. Once the person is identified, the gate can be opened from the mobile. It triggers the camera and the mic to be turned off, waiting for next visit. How are we bringing audio and video streaming over BLE? Well, to achieve this impressive streaming, we take benefit of the dual-core architecture of the STM32WB with an M4 application processor able to acquire and process large amount of data before sending them to the BLE radio M0-plus processor. The combination of our BLE stack efficiency to reduce latency in continuous data flow in addition to the 2 Mbps feature from the Bluetooth Low Energy 5.0 allows to reach audio and video streaming simultaneously with nice motion and user experience. Now, to go into more detail about the video resolution frame per second and audio quality, the video is in motion GPEG format with a resolution of 320x240 pixels. The audio chain is first acquired by ST Microphone, then treated by the STM32WB55M4 application processor thanks to the OPUS codec with a bitrate of 16kbps. This audio setup is based on an available STM32Cube function pack for STM32WB MCU. This function pack also contains other applications like receiving stereo music at 48kHz or full-duplex audio streaming over Bluetooth 5.0 using OPUS codec and is available on our website ST.com and you might be wondering what's next in our industry story. Bluetooth Low Energy standard is evolving fast on audio features still creating new use cases to provide more quality and flexibility in IoT. Our own map is definitely focused on offering such features answering to the market evolution.