Waveshare TTL to RS485 (C) Galvanic Isolated Converter – Half-Duplex Communication Module MQ-3 Gas Sensor Cable Length 4 cm Applications

Cable Length 4 cm Applications Power Supply

gas and petroleum appliances

It has a LED for indicating power on

else the next most popular is the full size SMA connector in which case the 3DBI Antenna will screw on directly

This terminal block is used for Grounding / Earthing Wires

Waveshare TTL to RS485 (C) Galvanic Isolated Converter – Half-Duplex Communication Module MQ-3 Gas Sensor Cable Length 4 cm ApplicationsThe Waveshare TTL to RS485 (C) is a compact, high reliability module that converts TTL level signals (3. 3V or 5V) to RS485 differential signals with full galvanic isolation. Designed for industrial and embedded applications, it ensures robust communication over long distances while protecting connected devices from electrical surges and interference. Pinout Overview Right Side (TTL Interface): VCC: Power Input (3. 3V ~ 5V DC) TXD: TTL Transmit Data