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E103-W04B Serial port to WiFi module

[Transmission power]:20dBm

[Communication distance]: 90m

[Product size]: 17*16*2.5mm

[Introduction]:E103-W04B is a high-performance and highly reliable WiFi data transmission module developed by Chengdu Ebyte Electronic Technology Co., Ltd. The module integrates the transparent transmission function, which can be used immediately, and can realize serial port (TTL) data through WiFi Device networking data interaction. Support IEEE802.11 b/g/n standard, support 4-way Socket connection; support Alibaba Cloud, Baidu Cloud, OneNet, standard MQTT protocol; support TCP/UDP/HTTP/MQTT multiple network communication protocols. The module is small in size, comes with PCB onboard antenna, works in the 2.4GHz frequency band, has low power consumption and fast data transmission. It is widely used in Internet of Things applications such as smart home appliances, smart homes, wireless audio and video, smart toys, medical monitoring, and industrial control.

PIN


pin numberpin definitionFunction and Instructions
1RESTOREPull low to restart, pull low 5S device to restore factory
2NCdefault floating
3NCdefault floating
4NCdefault floating
5NCdefault floating
6NCdefault floating
7NCdefault floating
8VCCEquipment power supply VDC: 3.0V—3.6V (above 350mA)
9GNDground or power negative
10NCdefault floating
11NCdefault floating
12NCdefault floating
13NCdefault floating
14NCdefault floating
15RXDRXD pin, used as UART serial port input pin
16TXDTXD pin, used as UART serial port output pin