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, …
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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 …
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 …
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 …
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, …
What is the difference between a Bluetooth adapter and a WiFi adapter?
1. At present, the distance of the civil version of Bluetooth is between 8-30m, which is an ideal state. In reality, there will be much …
Bluetooth HID Protocol Notes
1. Overview 2. Some concepts(1) HID Reports: Bluetooth HID devices support three kinds of Reports: Input, Output, and Feature.(2) HID establishes two channels, Control Channel …
Explain UART, SPI and I2C in detail
UART, SPI, and I2C are common communication protocols used in embedded systems and IoT devices to transfer data between integrated circuits, microcontrollers, and sensors. UART …
Comparison of indoor positioning schemes: UWB, Bluetooth, RFID, WiFi
Indoor positioning technology is constantly developing, and the means are also rich and diverse. WiFi, Bluetooth, RFID and UWB are popular. These kinds of technologies …
