Bluetooth is a short-range wireless communication technology that can complete data exchange between fixed devices and mobile devices. Generally, BR/EDR Bluetooth before Bluetooth 3.0 is called traditional Bluetooth, while Bluetooth BLE under the Bluetooth 4.0 standard is called Bluetooth Low Energy (BLE, BluetoothLow Energy). Bluetooth

The Internet of Things (IoT), a network of connected “smart” devices that communicate seamlessly over the Internet, is changing the way we live and work. On farms, wireless IoT sensors can transmit information about soil moisture and nutrients to agricultural experts across the country. IoT

Bluetooth 5.0 is a Bluetooth technology standard proposed by the Bluetooth Technology Alliance in 2016. Bluetooth 5.0 has corresponding improvements and optimizations for the speed of low-power devices. Bluetooth 5.0 combines wifi to assist indoor positioning, improves transmission speed, and increases effective working distance. Compared

Hardware appears in many forms in the IoT, whether it’s the underlying processors that power devices, sensors that collect information from the physical world, or edge computers that collect and analyze data. Various hardware including gateways, radios, and chipsets play a vital role in IoT.

Gateways, routers, and switches are also devices that connect to the network, but they have different functions and uses. First, let’s understand what gateways, routers, and switches are. gateway Simply put, a gateway is a device that connects two networks. Many LANs now use routers

An antenna is an energy converter that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium, or vice versa. Regarding the design of a low-power, short-range 2.4GHz wireless transceiver device used in a radio frequency system, the design

Crystal oscillator is a crystal oscillator. It mainly provides a highly stable time frequency signal for the circuit so that electronic components can work uniformly. How is this achieved? 1. Working principle of crystal oscillator It turns out that the traditional LC oscillator has poor

Many people can’t tell the difference between LoRaWAN and LoRa. LoRaWAN refers to the MAC layer networking protocol, while LoRa is a physical layer protocol. Although most existing LoRaWAN networks use LoRa as the physical layer, the LoRaWAN protocol also lists that GFSK can be

The layout of components in PCB design is crucial. A correct and reasonable layout not only makes the layout more tidy and beautiful, but also affects the length and quantity of printed wires. A good PCB component layout is extremely important for improving the performance

WiFi6 is a naming convention proposed by the WiFi Alliance for wireless network standards. It changed 802.11ax to WiFi6 and was released in 2019. The routers currently on the market are all 802.11ac, which is WiFi5, which was released by the WiFi Alliance in 2014.

The so-called driver actually refers to the power supply of LED lamps. From a professional perspective, it can be divided into 4 types: namely “resistance-capacitance type, constant voltage type, constant current type and constant current and constant voltage type”. The following is a brief introduction

The Internet of Things is an important product and symbol of the information age. Its emergence not only promotes the rapid development of the Industrial Internet of Things, but also has a huge impact on military construction and combat methods, and is closely related to