The rms7688a Internet of things router module is based on MediaTek mt7688 or mt7628 chipset. The module requires only one external 3.3V power supply. Mt7688 chipset integrates 1t1r 802.11n Wi Fi radio station and 580mhz MIPs ® 24KEc ™ CPU, 1-port Fast Ethernet physical layer, USB2 0 host, sd-xc, I2S / PCM and multiple low-speed IOS in one SOC. Mt7688 supports two operation modes - Internet of things gateway and Internet of things device mode. High performance USB 2.0 allows the mt7688 to add 3G / 4glte modem support or H.264 ISP for wireless IP cameras. The Internet of things gateway mode also supports ZigBee / Z-Wave and sub - 1GHz RF for smart home control. In IOT device mode, mt7688 supports EMMC, sd-xc and USB2 0, and supports Wi Fi high-quality audio through 192kbps / 24bit I2S interface, VoIP application through PCM, PWM, SPI host, 3uart and other peripheral interfaces.