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E103-W04 Serial port to wireless WiFi module

[Transmission power]:20dBm

[Communication distance]:70m

[Product size]:19x13x2.5mm

[Introduction]:E103-W04 is a high-performance and highly reliable wireless 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 number Pin definition Function and usage instructions
1NChanging in the air
2NChanging in the air
3NChanging in the air
4NChanging in the air
5NChanging in the air
6NChanging in the air
7ENWake-up pin, high level wakes up the chip
8RELOADPull low to restart, pull low 5S device to restore factory settings
9GNDGND pin
10GNDGND pin
11VDDEquipment power supply VDC: 3.0V-3.6V (above 350mA)
12NChanging in the air
13NChanging in the air
14TXTXD pin, used as UART serial port output pin
15RXRXD pin, used as UART serial port input pin
16NChanging in the air
17NChanging in the air
18NChanging in the air
19NChanging in the air
20NChanging in the air
21NChanging in the air
22NChanging in the air