<p>This module is an isolated USB-TTL. The interface used is the mainstream TYPE-C interface. Insert the TYPE-C data cable to connect to the computer. The signal sampling is a dedicated signal isolation chip, which makes the output more stable. The power indicator light and the humidity module are more clear.</p> <p>USB power supply: USB 5V, TYPE-C interface</p> <p>TTL terminal power supply: 3.3V, with power indicator</p> <p>TTL end signal level: 3.3V (TTL end only supports 3.3V power supply and 3.3V TTL signal, not 5V!)</p> <p>Communication protocol: pure hardware equipment, not restricted by protocol</p> <p>Baud rate: up to 25600bps</p> <p>Isolation level: power isolation and signal isolation, isolation voltage AC300oVrms, static \u00B18KV</p> <p>Temperature range: -40\u2103-80\u2103</p> <p>Support system: support hot swap, support win98\/CE\/2000\/2003\/2008\/XP\/WIN7\/WIN8\/WIN10\/VISTA\/-</p> <p>LINUX\/ OSX system, USB interface is hot-swappable</p> <p>Product size: 23mm x 23mm x 7mm</p> <p>Interface Description:</p> <p>3.3V: 3.3V output positive</p> <p>RX: UART serial port input</p> <p>TX: UART serial port output</p> <p>GND: negative pole of power output</p> <p>TYPE-C: USB interface to computer</p> <p>Note:</p> <p>The 3.3V pin on the TTL end is not the output voltage of the module. This pin needs to supply power to the module. There is a power indicator light. The power indicator light must be on to work.</p> <p>Colour:Black</p> <p>Material:PCB+electronic components</p> <p>Package Contents:</p> <p>1 x USB to TTL module with adapter board</p> <p>1 x 4P cable</p> <p>2 x screws(M3 x 5)</p> <p>2 x M3 nuts</p> <p>(Cables\/screws\/nuts are all randomly colored, don't accept the specified color)</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>