bluetooth keyboard

Bluetooth HID Protocol Notes

1. Overview The Human Interface Device (HID) defines the protocols, features and usage procedures of Bluetooth in human interface devices. Typical applications include Bluetooth mouse, Bluetooth keyboard, Bluetooth gamepad, etc.…
Explain UART, SPI and I2C in detail

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 (Universal Asynchronous Receiver/Transmitter) is a…
beacon indoor

Bluetooth Beacon makes indoor positioning easier

The IoT technology has been constantly updated and iterated, and the indoor positioning technology has also undergone earth shaking changes. From room level positioning, decimeter level positioning to high-precision centimeter…

Eight features of Bluetooth Technology

(1) Bluetooth module is small and easy to integrate: due to the small volume of personal mobile devices, the volume of Bluetooth chips embedded in them should be smaller.(2) Low…
IoT

Problems faced by the Internet of things

Although the development of the Internet of things has gradually taken shape in recent years, all countries have invested huge human, material and financial resources in research and development. However,…
RFID

Key technologies of IoT

RFID TechnologyWhen it comes to the Internet of things, we have to mention the radio frequency identification (RFID) technology that has attracted much attention in the development of the Internet…
IoT

What’s IoT?

Internet of things (IoT) refers to the real-time collection of any object or process that needs monitoring, connection and interaction through various devices and technologies such as information sensors, radio…