The structure of BLE
The structure of BLE is as follows PHY layer: 1Mbps adaptive frequency hopping GFSK (Gaussian frequency shift keying), operating in the license-exempt 2.4GHz frequency band.Connection layer LL: The control chip…
Bluetooth connection process analysis
1. basic conceptThe connection process of Bluetooth is very important, especially for Bluetooth technicians, this is very important. The process of managing it is a compulsory course. Although I have…
What’s Wi-Fi Module？
The Wi-Fi module, also known as the serial port Wi-Fi module, belongs to the Internet of Things transport layer. Its function is to convert the serial port or TTL level…
What’s Bluetooth Module?
The Bluetooth module is a PCBA board with integrated Bluetooth function, which is used for short-distance wireless communication. It is divided into a Bluetooth data module and a Bluetooth voice…
Differences and connections between JMS, AMQP, and MQTT
Messaging has been used successfully all over the world as a basic communication mechanism. Messaging has always been the only commonly used method of communication, whether it is human-to-human, machine-to-human,…
Should you choose Bluetooth, ZigBee, or Wi-Fi for home networking?
Friend 1: A gateway also needs to be added when Bluetooth devices are remotely controlled. Bluetooth basically supports Mesh now, but Bluetooth Mesh is still not as stable as ZigBee…
How the Bluetooth module works
How the Bluetooth module works
What is the upgrade of Bluetooth 4.0/4.1/4.2/5.0/5.1/5.2？
1. Brief introductionAfter years of development, Bluetooth has been gradually upgraded from the initial version 1.0 to version 5.3. Among them, the version before version 4.0 is classic Bluetooth. Starting…
Does Bluetooth 5.0 support lossless audio?
Yes. Bluetooth 5.0 does not greatly improve the sound quality of audio transmission. The Bluetooth A2DP protocol commonly used in listening to songs belongs to the traditional Bluetooth, so although…
How many devices can Bluetooth connect at the same time?
Seven, Bluetooth can connect up to 7 devices at the same time. However, the types of connected devices should be different, such as Bluetooth headsets, Bluetooth mice, and Bluetooth keyboards.…