WiFi is an important wireless network communication technology, which is currently held by the Wi-Fi Alliance, and a similar wireless communication technology is Bluetooth, the communication standard managed by the Bluetooth SIG.
The full name of WiFi is WirelessFidelity, also known as the 802.11b standard. Commonly known as wireless broadband, it belongs to the WLAN wireless local area network, support for multiple terminal devices at the same time transmission network mode, that is, one-to-many mode. Its transmission range of 100 meters, the speed can reach a maximum of 11Mbps, the use of DSSS (Direct Sequence Spread Spectrum) and QPSK or BPSK (Phase Shift Keying), the upper and lower bandwidth is 22MHz.
And Bluetooth (Bluetooth?) belongs to the WPAN wireless LAN, that is, the point-to-point, point-to-multipoint, is mainly used to connect a number of external devices, or close to the data transmission. Or in close proximity for data transmission. For example, Bluetooth headsets, cell phones and tablets to transfer files. The bandwidth of Bluetooth transmission is 1Mbps, the communication distance is generally about 10 meters (in April this year, the launch of the latest version of Bluetooth4.0 transmission distance can reach 50 meters), the use of FHSS (Frequency Hopping Spectrum Spreading) method, generally 1600 times per second jumps, the 83.5MHz frequency band is divided into 79 frequency band channels, each moment only accounts for 1MHz bandwidth.
The WIFI connection to the network is generally password-protected, and can be easily cracked by technical means, so the security is relatively low.
And Bluetooth breaks the limitations of using wired cables to connect a variety of digital devices, the quality of wireless communication is good, data security performance is high.
One of the biggest advantages of WIFI is that it is fast and does not require wiring, in fact, it converts wired network signals into wireless signals, so that all the devices that need to access the Internet wirelessly can be connected, such as smartphones, tablets, and laptops, etc. WIFI is more suited to indoor scenarios, especially in companies and home environments, because it can directly connect various electronic devices to the network for a variety of interactions. WIFI is more suitable for indoor scenarios, especially in corporate and home environments, because it directly connects a variety of electronic devices to the network for a variety of interactions.
Bluetooth, on the other hand, allows for wireless communication of data and voice at the same time, playing the role of connectivity. Bluetooth functionality can be integrated into a wide range of digital products, such as cell phones, headsets, printers, keyboards, mice, cameras, and so on, for a wide range of uses. As these digital products are factory-installed with Bluetooth modules and have higher security and lower power consumption, they are suitable for outdoor scenarios.
Quartz crystals are used to generate the frequencies that control and manage all communication systems, and are an essential component in most clocks, watches, computers, and microprocessors, and are an integral part of modern electronics. Quartz crystals play an important role in two wireless technologies, Bluetooth and WIFI.
In Bluetooth technology products, the commonly used quartz crystal frequencies are 12.000MHZ, 16.000MHZ, 24.000MHZ, 26.000MHZ, 32.000MHZ and so on.
In WIFI technology products, commonly used quartz crystal frequency 20.000MHZ, 40.000MHZ, etc..
Since version 4.0, Bluetooth has been divided into "classic Bluetooth", "low-power BLE Bluetooth" and "high-speed Bluetooth". "Low-power Bluetooth" is widely used in many industries due to its low power consumption, especially in smart wearable devices, smart home devices, and smart healthcare with significant R&D technology.
A faster short-range wireless transmission technology, WiGig, developed from WiFi, is rapidly emerging. Semiconductor giant Qualcomm saw the unlimited potential of WiGig, and opened a precedent for mobile devices with built-in triple-frequency wireless connectivity platforms to meet the needs of applications such as 4K video and audio streaming, peer-to-peer (P2P) transmissions, and wireless docking stations (WirelessDocking).
The continuous maturation of wireless technology plays a crucial role in the development of the Internet of Things (IoT), making it easier and safer to realize the "Internet of Everything, Internet of Everything".
Lenze Technology introduces Bluetooth BLE5.2 chip ST17H66 to help Amazon (Alexa, Echo speaker) Bluetooth direct connect light.
Lenze Technology - Amazon Direct Connect Phantom Light Solution
Lenze Technology introduces the latest Amazon Direct Connect Phantom Light Solution, using the latest ST17H66 Bluetooth BLE 5.2 chip, the Phantom Light can be used via Bluetooth with the Alexa app, Echo speakers. Amazon Alexa supports a variety of mode switching, manual and automatic color tuning, music rhythm function, support for wireless switch, timer switch function, control at will; at the same time you can manipulate multiple phantom lights and other program features, skills can be added infinitely.
Main Functions
Application Scenarios
Home: You can use LED colorful lights in the aisle, bedside, bookcases, cupboards, wine cabinets, indoor staircases and so on, to create lighting effects, for the purpose of setting off the atmosphere of the entire house layout.
Bar: as rely on the lighting atmosphere set off by these places, can be designed by the illusion of colorful lights for the whole place of the environment of the atmosphere.
Shops: the interior decoration and the appearance of the store can also be used to decorate the effect of colorful lights to highlight the name of the store and goods.
Car: ambient light, rear view expression light.
Lenz Technology ST17H66 Bluetooth BLE5.2 chip supports AIoT multi-platform connectivity
Lenz Technology ST17H66 Bluetooth BLE5.2 chip can support (Alexa,Echo speakers) Amazon App products:
Bluetooth Switch
Bluetooth Socket