EBYTE E103-W20(7628) MT7628AN IEEE802.11b/g/n 24dBm Serial port to wifi low power consumption wifi modules

E103-W20(7628) MT7628AN chip solution Open Wrt operating system and custom development patch type small size serial port to WiFi wireless routing module [Chip solution]：MT7628AN [WiFi protocol]：IEEE802.11b/g/n [Transmission power]：20~24dBm [MCU main frequency]：580MHz [Communication distance]： 200m [Product size]：34.1*18.7*2.77mm/36.1*18.7*2.7mm [Product weight]：3.5g±0.1g [Introduction]：The E103-W20 (7628) module is a low-cost and low-power IoT module based on MediaTek MT7688AN and MT7628AN. This module leads to all interfaces of MT7688AN/MT7628AN, supports OpenWrt operating system and custom development, has rich interfaces and powerful processors, can be widely used in smart devices or cloud service applications, etc., and can be freely used for secondary development . Electrical parameters unit model Remark E103-W20（7688） E103-W20（7688） working voltage V 3.3±0.2V Voltage over 3.5 V will permanently burn the module communication level V 3.3  Voltage over 3.5 V will permanently burn the module No-load running current mA 180±50 Average power consumption Supply Current Requirement mA ≥1000 temperature Operatingtemperature ℃ -20～+55 Industrial grade Storagetemperature -40～+85 humidity  use %RH 10～95(non-condensing) storage 5～95(non-condensing) Hardware parameters model Remark E103-W20（7688） E103-W20（7688） chip MT7688NN MT7628NN Flash 32MB Customizable 16MB/8MB Memory DDR2 128MB Customizable DDR2 256M/64M/32MB Memory MIPS24KEc Packaging method patch SMD Antenna interface IPEX×1（1T2R 2.4 GHz with 150Mbps PHY data rate） IPEX×2（2T2R 2.4 GHz with300Mbps PHY datarate） Characteristic impedance about 50 ohms interface Ethernetinterface 5 10M/100M adaptive Interfaces supported by factory default firmware 1WAN, 4 LAN . UART 3 way The interfaces supported by the firmware are 2-way UART with transparent transmission function . SDIO 1 way Firmware interface not supported SPI 1 way Firmware interface not supported I2C 1 way Firmware interface not supported I2S 1 way Firmware interface not supported PWM 1 way Firmware interface not supported GPIO 8 or more Firmware Supported Interfaces Defined Functions size 34.1*18.7*2.7mm 36.1*18.7*2.7mm The error size is ±0.1mm Note: 1. The default firmware of the module is the firmware developed by our company based on Linux; Ethernet, WiFi, UART0 andUART1 of this firmware have transparent transmission function;2. The OPENWRT program or the original MTK Linux program can be programmed according to the actual usage. RF parameters unit Model Remark E103-W20（7688） E103-W20（7688） transmit power dBm 20～24 transmit power - IEEE 802.11b/g/n Ideal Range Meter M 200 Antenna gain 5dBi , in a line of sight main frequency MB 580