CH340 USB to TTL module transfer lines upgrade flash STC downloader

Description of product

  • Onboard CH340 USB to RS232 interface conversion chip.
  • Onboard power light.
  • Onboard USB male head, convenient to connect the computer.
  • TTL chip pins has led to facilitate communication with microcomputer
  • Working voltage: 5 v.
  • Board size: 18.2 (mm) x15 (mm).