Various control applications based on the wireless module are realized through the communication interface. The wireless module provides UART and multiple GPIO interfaces, GPIO and PWM can be used for intelligent control, and UART and SPI interfaces are used for device communication. Among them, the theoretical rate of the SPI interface can reach a quarter of the system bus rate, which is much higher than that of UART, GPIO and other interfaces, and is widely used in high-speed communication. In response to the high-speed communication requirements in various applications, SKYLAB has launched a variety of WiFi modules that support the SPI interface. In this article, SKYLAB will introduce several WiFi modules that support SPI interface.
SPI interface WiFi module
What is SPI interface
The SPI (Serial Peripheral Interface) interface is a synchronous serial communication method proposed by MOTOROLA. It is mainly used for high-speed and serial communication between microprocessors and peripheral devices, and can be directly connected to a variety of standard peripheral devices produced by various manufacturers, including FLASHRAM. , network controller, LCD display driver, A/D converter and MCU, etc.
WiFi module with SPI interface: WU106, SKW77, SKW78, SKW92A, SKW92B, SKW93A;
SPI interface WiFi module
IOT WLAN Module WiFi WU106
WU106 is a WiFi module compliant with 802.11 b/g/n standard, with built-in low-power application processor on-board, is a low-cost serial WiFi module, supports UART-WiFi-Ethernet data transmission.
High power drone WiFi module SKW77
SKW77 is a high-power wifi router solution module. The module is compatible with 802.11b/g/n, the radio adopts 2x2 MIMO, and the maximum rate can reach 300Mbps. The module integrates dual-channel PA and LNA, and the output power of each channel can reach more than +28dBm. The effective data transmission distance in the open area can reach more than 1000 meters, and users can easily realize the long-distance data transmission function by using it.
1000Mbps WiFi Module SKW78
SKW78 is a 1000Mbps high-speed wireless router module, which conforms to the 802.11a/b/g/n/ac Wi-Fi standard and integrates 3 gigabit-speed WAN ports or LAN ports; 2xMIMO 2.4GHz 802.11b/g/ n WIFI and 2xMIMO 5GHz 802.11a/g/n/ac WIFI. When used in customer's electronic equipment, only need to provide a 3.3V power supply.
2x2 MIMO WiFi Module SKW92A
SKW92A integrates 802.11n MAC and baseband, a 2.4GHz wireless broadcast equipment and front-end module, a 580MHz MIPS CPU, and a high-speed Ethernet PHY. This module only needs to provide 3.3V power supply externally, which is suitable for electronic devices with low power consumption, low cost, and highly integrated AP.
IOT AP WiFi Module SKW92B
The main chip of SKW92B is MTK's MT7688A. It is a 1T1R wireless device that complies with the 802.11n Wi-Fi standard. It contains a 580MHz MIPS CPU, a high-speed Ethernet PHY, a USB2.0 host, I2C/PCM and multiple low-speed IOS. SKW92B provides two working modes: IOT gateway and IOT device mode.
3x3 MIMO WLAN WiFi Module SKW93A
SKW93A is a high-performance, highly integrated wireless AP WiFi module. SKW93A can work in 2.4GHz and 5GHz dual-band at the same time. In the 2.4G frequency band, the transmission speed can reach 300Mbps; in the 5G frequency band, the transmission speed can reach 433Mbps, The module can guarantee real-time transmission of high-quality video files with sufficient clarity, resolution, stability and smoothness! The SKW93A module supports AP, client, relay module and serial WiFi.
If it is used in the Internet of Things and smart home, you can use the Internet of Things WiFi module WU106 with SPI interface;
If it is a WiFi module with SPI interface used as a gateway, you can choose WiFi module SKW92;
If it is a WiFi module with SPI interface for large data transmission, you can choose SKW78 or SKW93A;
If it is a WiFi module with SPI interface for long-distance picture or video transmission, SKW77 can be selected.
For more selection and application of wireless module WiFi module, you can directly visit SKYLAB official website or Ali store.