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USB Serial Module

Assembled and tested USB serial module.  Module is based on CH340 a USB <–> TTL Serial conversion chip.  Serial pins TX/RX are 3.3V level compatible for interfacing with the most common 3.3V logic level chipsets.  The power pins provide 5v/3V @ 500mA direct from the USB port .  On board are available also the DTR/RTS pads.



  • There are five pins 5V/3v/TX/RX/GND
  • Two pads providing signals DTR/RTS
  • On board power translation 5v to 3.3V
  • SERIAL output 3.3V/5V voltage levels
  • Three LED’s: Power, RX, TX
  • Four Dupont Jumper  Wires – Female/Female
  • Weight: 13.5 gr.
Price: $7.45
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