Quality WiFi BT Module & USB WiFi Module Manufacturer

With the development of wireless transmission technology, high-definition wireless HDMI extender products have begun to be applied to various scenes in life. It is widely used for home high-definition video images at the same frequency, in classroom education and conference office, as a courseware display and enterprise information display, or as a camera and other devices, the HDMI high-definition picture is wirelessly transmitted to the corresponding device for recording and broadcasting.After getting rid of the connection of the wired connection, the wireless projection screen is more convenient to use.   Wireless screencast can transmit images in real time and transmit the images to the required devices in time, providing a very convenient experience for users with different needs. In the past few years, a large number of wireless HDMI extender products have emerged on the market, but in the complex environment and long distance, 2.4G is used for transmission. Because of 2.4G interference, the quality of image transmission is greatly declined. With the 802.11 5.8g gradually becoming the mainstream in recent years, the cost of the wireless module, which is the core component of the wireless projection screen product, is greatly reduced, which makes the related wireless HDMI extender products continue to be innovated, making it suitable for various subdivisions, wireless HDMI extender can be said to have a bright future.   Oflycomm specially developed the 8121N-UH module for the wireless picture transmission field, adopting Qualcomm chip, dual antenna design, adopting 802.11 5.8G frequency band to avoid signal interference of 2.4G frequency band, power up to 19dBm (54M*2), excellent in all aspects of distance and penetration, suitable for wireless HDMI extender, long-distance wireless transmission and other fields.   At present, the performance of the market is stable, and the mainstream products with excellent transmission quality and speed generally adopt the Hisilicon main chip , and use H.264 encoding to transmit high-definition audio and video below 1080P. However, the main chip using H.265 encoding is equipped with 8121N-UH module to transmit 4K audio and video. With the increase of 4K sources, 4K wireless HDMI extender products will also become mainstream.   Due to different solutions or designs, product cost and performance will be quite different. Oflycomm has been committed to providing and assisting customers to optimize product RF solutions.    .

Before we talk the SDIO WiFi Module, let's take a quick look at the SDIO, which literally means the I/O interface of SD. SD itself is the standard for memory cards, but now we plug SD into some of the peripheral interfaces , and from that comes what we called the SDIO. It can also be said that SDIO is an interface developed on the basis of SD card. It is not only compatible with previous SD CARDS, but also can connect the external periphery through the I/O pin of SD and transmit data to these periphery through the I/O data bit on SD.   So SDIO WiFi Module, which is simply an embedded module based on the SDIO interface and compatible with wireless network standards. The built-in wireless network protocol IEEE802.11 and TCP/IP protocol stack can realize the conversion of user's main platform data from SDIO port to wireless network. Due to its fast transmission speed and good compatibility, it is widely used in all kinds of wireless smart devices. Now let's take a look at some of popular models in applications:   1.3131A-S, it is based on Hisilicon 802.11n video transmission IOT chipset Hi1131S, it supports ultra low power consumption.The data rate in WIFI 1T1R N mode is up to 150 Mbps. It had to be based on LiteOS and be worked with Hisilicon CPU, the major applications are doorbell and IP Camera. Currently, the solution of Hi3518EV20X/Hi3518EV300+Hi1131S directly accounts for more than half in low-power IPC products, and its high definition and stability have been unanimously recognized by various manufacturers all over the world.       2.3181A-S, it based on Hisilicon Hi3881 chipset, the RF performance is basically same as Hi1131S, but it can support LiteOS or Linux, which greatly simplifies the LiteOS inexperienced engineers and reduces the debugging time and development cycle. At present, the main applications included IPC and set-top box.     3.3161A-SL，it is based on Hisilicon Hi3861L chipset, it also inherits the RF performance of Hi1131S, but part of MCU subsystem is optional, which greatly reduces the software and hardware development and improves the convenience of debugging. The major applications will be low-power smart scenes (battery smart devices, such as locks, sensors, etc.) and video scenes (battery IPC).                                                                                           4.6222B-SRC, it is based on Realtek RTL8822CS chipset, for our previous upgrade of RTL8822BS, supports IEEE 802.11 a/b/g/n/ac + Bluetooth V5.0, WiFi 2T2R AC mode data rate up to 867 Mbps, compared to the previous RTL8822BS not only performance optimization, in the same market competition, cost advantage is more obvious. It is most applied for the Set Top Box, Tablet and other video transmission of high speed smart devices.                                       5.8274B-SR, it is based on Qualcomm QCA6174A-3 chipset, the performance is similar as 6222B-SRC. In previous articles we specifically mentioned the comparison between these two, they both support MU-MIMO. The big difference is that the operating temperature is more wider, which is particularly important in some industrial grade applications or complex environments.       In addition to the above mentioned based on Hisilicon/Realtek/Qualcomm SDIO WiFi module, as well as based on MTK same ones. Whether it's 2.4 G WiFi or 2.4 G / 5.8 G dual-band WiFi, we have enough market experience and technology accumulation, to provide customers with perfect IOT solutions, more details welcome to visit our website OFLYCOMM.

In August 2019, at Huawei Developer Conference, Huawei officially released the Lingxiao Series WiFi-iot chips, which are mainly used for home automation products. This is Huawei's connectivity solution for HiLink's smart home ecological strategy. With the chip’s latest technology, HiLink's ecological connections will be more stable, convenient and secure, which is the cornerstone of HiLink's ecological prosperity. As a leading manufacturer in China, we are specialized in providing customers with perfect Internet of Things connectivity solutions. The following will be a details of the WiFi Module which are based on HiSilicon WiFi chips.   1、Main Chip：Hi1131S Module No: 3131A-S     Introduction：Mainly used in battery-powered low-power IPC and smart doorbell, work with HI3518EV200/300 and based on LiteOS , it has been recognized by the market for its low power consumption, fast wake-up and excellent performance. Also 3131A-S has been in mass production and successfully applied in this field.   Main Features： Support IEEE 802.11b/g/n 2.4GHz support 150 Mbps in 20/40 MHZ mode Support WLAN SDIO interface Enterprise level security which can apply WPA/WPA2 certification for WiFi Operating Temperature：-30~70°C Low power dissipation   2、Main Chip：Hi3861LV100 Module No: 3161A-SL/3161H-IL     Instruction：3161A-SL is an upgrade version of 3131A-S with a wider range of applications,mainly applied in the fields of battery-powered low-power IPC, smart doorbell and smart home.   In the field of low-power video door bell and IPC, Hi3861L is worked with Hi3518EV300 to operate in LiteOS dual mode (WIFI and CPU are both based on LiteOS ). Hi3861L has a rich interface for external sensors. With an embedded MCU and power management unit, it can reach Rapid Wake and lower power consumption. Meanwhile, it simplifies product design and is conducive to rapid product development. 3161H-IL can be directly used in battery-powered low-power door locks and other smart home products.                         Main Features： Support IEEE 802.11b/g/n 2.4GHz support 72.2 Mbps in 20MHZ mode Support standard 20MHz nd 5M/10M narrow broadband, support STBC Support SDIO,SPI,I2C,UART,I2S,PWM,ADC,GPIO interfaces Module integrated 32K clock WFA WPA, WFA WPA2 personal, and WPS2.0 for Wi-Fi Built-in 352 KB SRAM and 288 KB ROM Main chipset Built-in 32bit MCU and 2 MB flash memory Operating Temperature：-40~85°C Low power dissipation   3、Main Chip：Hi3861 Module No: 3161H-I     Introduction：Hi3861 is WIFI-IOT chip, which is mainly used in the normally power supply smart home, such as white goods, home appliances, and electrical products.                             Main Features： Support IEEE 802.11b/g/n 2.4GHz support 72.2 Mbps in 20MHZ mode Support standard 20MHz nd 5M/10M narrow broadband, support STBC Support SDIO,SPI,I2C,UART,I2S,PWM,ADC,GPIO interfaces Module integrated 32K clock