RAK476MA / RAK

Introduction RAK476 module is a Wi-Fi module that fully compliant with IEEE 802.11b/g/n wireless standards, It combines an ARM-CM3 MCU, WLAN MAC, a 1T1R capable WLAN baseband, and RF in the module. It have onboard antenna, and external antenna interface, RF output PIN also exist in the board. RAK476 internally integrated TCP / IP protocol stack, supporting numerous protocols such as ARP, IP, ICMP, TCP, UDP, DHCP CLIENT, DHCP SERVER, DNS and other etc. It supports AP mode, Station mode. It also support rich AT command for all kinds of application. Users can easily and quickly use it to wifi networking and data transmission. The baud rate of module serial port is up to 921600bps, which can fully meet the low-rate applications. In network part, RAK476 supports storing network parameters in the module, and reduce time connect to network. The module supports wireless network parameters configuration, supports wireless firmware upgrade. It also supports EasyConfig. It also provides a bunch of configurable GPIOs which are configured as SPI ,UART, I2C, for different applications and control usage. RAK476 integrates internal 512K SRAM and 1MB flash for complete WIFI protocol functions. Application UART serial AT command set operation Support for multiple baud rate Support wireless configuration and OTA upgrade firmware Support the UART interface, OTW(over the wire) upgrade function Support for fast networking, easyconfig function Support proactively identifying devices in LAN Standards Supported 802.11b/g/n compatible WLAN 802.11e QoS Enhancement (WMM) 802.11i (WPA, WPA2). Open, shared key,and pair-wise key authentication services Light Weight TCP/IP protocol WLAN MAC Features CMOS MAC, Baseband PHY, and RF in a single chip for 802.11b/g/n compatible WLAN Complete 802.11n solution for 2.4GHz band 72.2Mbps receive PHY rate and 72.2Mbps transmit PHY rate using 20MHz bandwidth 150Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth Backward compatible with 802.11b/g devices while operating in 802.11n mode Compatible with 802.11n specification Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU) Low latency immediate High-Throughput Block Acknowledgement (HT-BA) Long NAV for media reservation with CF-End for NAV release PHY-level spoofing to enhance legacy compatibility Power saving mechanism WLAN PHY Feature 802.11n OFDM One Transmit and one Receive path (1T1R) 20MHz and 40MHz bandwidth transmission Short Guard Interval (400ns） DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble OFDM with BPSK, QPSK, 16QAM, and 640QAM modulation. Convolutional Coding Rate: 1/2, 2/3,3/4, and 5/6 Maximum data rate 54Mbps in 802.11g and 150Mbps in 802.11n Fast receiver Automatic Gain Control (AGC) Peripheral Interfaces Maximum 1 SPI supported with baud rate up to 10.4MHz Support 4 PWM with configurable duration and duty cycle from 0 ~ 100% Maximum 17 GPIO pins 2 high speed UART interface with baud rate up to 4MHz