USR-TCP232-302 RS232 to Ethernet Converter 10 RPM Geared Motor The MQ-3 module uses a

The MQ-3 module uses a tin dioxide (SnO2) semiconductor sensing element

Ai-Thinker Ai-WB2-01M Module

which covers all standard serial communication speeds from 300 bps to 115200 bps and beyond

and Zero W models

External Antenna Option: U

USR-TCP232-302 RS232 to Ethernet Converter 10 RPM Geared Motor The MQ-3 module uses a1 port RS232 to Ethernet converters USR TCP232 302 can transmit data transparently between TCP IP and RS232. RS232 to IP Converters USR TCP232 302 are widespread required in industrial automation. Simple configuration and easy to use. Single RS232 to Ethernet converters Cost effective RS232 port Power supply: DC 4. 75 7V Compact, Light Weight Supports TCP server client, UDP server client Virtual COM