WiFi

WiFi is a technology that allows electronic devices to connect to a wireless local area network (WLAN) based on the IEEE 802.11 standard wireless protocol, typically using the 2.4G UHF or 5G SHF ISM radio frequency bands. Connection to a WLAN is usually password-protected; however, it can also be open, which allows any device within range of the WLAN to connect.Wi-Fi is a brand of wireless network communication technology held by the Wi-Fi Alliance.WiFi is suitable for large data volumes, short distances, and relatively low stability, and is primarily used in home and commercial applications!

ZigBee

ZigBee is a technology based on the IEEE802.15.4 standard for low-power local area network protocols, usually using the 2.4G frequency band. According to international standards, ZigBee technology is a short-range, low-power wireless communication technology. The name (also known as ZigBee protocol) is derived from the bee's figure-eight dance, as the bee relies on the "dance" of flying and "buzzing" (zig) its wings to transmit information about the location of pollen to its companions, that is, the bee relies on this way to form a communication network in a colony. In other words, bees rely on such a way to form a communication network in the colony. It is characterized by proximity, low complexity, self-organization, low power consumption and low data rate. It is mainly suitable for use in the field of automation and remote control, and can be embedded in a variety of devices.

Difference between ZigBee and WiFi module:

1, the transmission speed is different

ZigBee's transmission speed is not high (<250Kbps), but the power consumption is very low, the use of battery power is generally able to use more than 3 months;

WiFi, which is often referred to as wireless LAN, the rate of large (11Mbps), power consumption is also large, the general external power supply can be used more than three months;

WiFi, is often said to wireless LAN, rate of large (11Mbps)

2, different applications

ZigBee is used for low-rate, low-power occasions, such as wireless sensor networks, industrial control, environmental monitoring, smart home control and other areas.

WiFi, generally used to cover a certain range (such as a building) of wireless network technology (coverage of about 100 meters). The manifestation is our commonly used wireless router. In a building deployed 1 wireless router, the building's laptop (with wireless card), basically can be wireless Internet.

3, the market status

ZigBee as an emerging technology, since the release of the first version of the standard in 2004, is in the high-speed development and promotion; at present, because of the cost, reliability reasons, there is no large-scale promotion; WiFi, the technology is mature a lot of applications are also a lot.

The continuous maturation of wireless technology plays a crucial role in the development of the Internet of Things, making it easier and safer to realize the "Internet of Everything, Internet of Everything". With the continuous development of society, the advantages of wireless communication have become more and more obvious, the total has the following points:

1, wireless communication coverage, almost not subject to geographic limitations: it can be set up at any time, at any time to increase the link, installation, expansion is convenient.

2, wireless communication speed: can be quickly (within tens of minutes) set up a communication link, to achieve temporary, emergency, disaster communication purposes.

3, the application of a wide range of gradual: from the earlier simple application of a number of intelligent digital products has gradually turned into a number of industry applications, such as industrial control, medical, automotive electronics and other fields.

Relatively speaking, WiFi modules are more able to meet the needs of IOT wireless communication applications, SKYLAB existing WiFi modules have the three major advantages of IOT wireless communication.