Adding Bluetooth Support to Embedded Linux Background A brief introduction to the entire Bluetooth framework in Linux was provided earlier: Today, we will briefly discuss how to add Bluetooth support in Embedded Linux. Kernel Part The kernel part is mainly divided into two sections: module drivers and the in-kernel Bluetooth protocol stack. Here, we take … Read more
The differences between traditional Bluetooth and BLE (Bluetooth Low Energy) in Bluetooth BQB certification mainly lie in the following aspects: Application Scenarios and Functional Requirements Traditional Bluetooth: Primarily used in scenarios requiring high-speed data transmission for audio, video, and other large data, such as speakers, headphones, and automotive electronics in traditional data transmission industries, focusing … Read more
A Danish king who loved blueberries and had blue teeth The name “Bluetooth” comes from King Harald Bluetooth of Denmark, who lived in the 10th century (he loved to eat blueberries, which made his teeth appear blue). During the preparatory phase of the industry association, a highly expressive name was needed to label this high-tech … Read more
Reporter: Lu Keyan “ The tool primarily relies on the Bluetooth functionality of mobile phones. “ On April 10, Apple CEO Tim Cook and Google CEO Sundar Pichai jointly announced on Twitter that the two companies will collaborate to connect Apple and Android mobile systems to launch a plan for tracking the spread of the … Read more
Have You Fallen into These Pitfalls When Connecting a Bluetooth Watch to Your Phone? Have you ever had this experience: you excitedly bought a Bluetooth watch, wanting to enjoy the convenience of smart living, but when trying to connect it to your phone, it either won’t connect or has various issues? After fiddling with it … Read more
In Bluetooth channel sounding (Channel Sounding) applications, the design scheme should always consider adding a second antenna. As shown in Silicon Labs‘ low-power Bluetooth (Bluetooth LE) channel sounding antenna guideline document – AN1493: Antenna Design Guidelines for BLE Channel Sounding, even in cases where size is constrained, adding a second antenna is feasible and helps … Read more
Bluetooth BQB certification testing process is as follows: Register as a member of the Bluetooth Special Interest Group (SIG): Manufacturers need to complete registration on the Bluetooth SIG website to obtain membership, which allows them to submit certification applications and access related resources. Submit certification application: Members submit a BQB certification application to the Bluetooth … Read more
Bluetooth has been paired Do you want to click to connect? “Ding” Your university life Bluetooth is connected Sharing a wonderful campus life You and Xingzhi’s Bluetooth pairing was successful Please start playing your wonderful campus life Classroom “Bluetooth”: Knowledge Sharing Class bell rings crazily “Doki Doki” Classroom “Bluetooth” one-click “connect” Blackboard writing, PPT, group … Read more
System Overview This design uses STM32CubeMX to configure the STM32F401CC, controlling the left motor direction via PB2/PB3, with PA1 providing PWM for the left motor; PB0/PB1 controls the right motor direction, with PA0 providing PWM for the right motor. The simulation of the TURTLE car is implemented in Proteus, receiving Bluetooth commands through serial communication. … Read more
The Bluetooth protocol architecture adopts a layered structure, covering multiple protocol components from the physical communication at the bottom layer to the application data transmission at the top layer. The Bluetooth protocol stack is suitable for Classic Bluetooth (BR/EDR) and Bluetooth Low Energy (BLE), which have similar basic architectures, but BLE is optimized for low … Read more