Boardoza CH340 USB-C to TTL Converter Breakout Board

Boardoza CH340 USB-C to Serial Breakout is an easy-to-use USB-to-Serial adapter based on the CH340C and takes advantage of the handy USB-C connector.

Technical Specifications

Power Input Type6 Pin 2.54 Header
Input Voltage5V
FunctionsUSB-C to TTL
Working Voltage3.3V – 6V
Operating Temperature-40°C ~ +85°C
Board Dimensions20 x 60 mm

Board Spesific Properties

  • Converts USB port to TTL serial port.
  • CH340G integrated is used.
  • It can work with 3.3V or 5V. VCC selection is made with jumper.
  • Type C USB.
  • There are 6 Pin TTL connector output pins. These pins are GND, RXD, TXD, 3.3V, EN and I0.
  • Working voltage can be adjusted to 5V or 3.3V.
  • It easily communicates with an MCU with TTL outputs.

Board Pinout

PIN NumberPIN NameDescription
1RX Serial Data Input, set up controlled pull-up and
2TXSerial Data Output (opposite phasic output of CH340R)
3IO0 Programming and run modes
4ENProgramming and rund modes
53V3/5VPower Supply