CP2102 Serial Programmer Module


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SKU: MDU-ADT-SERIAL-CP2102 Category: Tags: , , , ,


This is a serial interface module you can add into your microcontroller to enable serial communication with your computer.


  • Serial interface chip : CP2102
  • Operating voltage : 5V
  • Signal voltage : 3.3V
  • Normal logic output, active LOW outputs 0v, active HIGH outputs 5V.
  • Has built-in LED for indicating power, data transmission and correct installation
  • Data transmission rate : 300bps – 1Mbps
  • Operating system : Windows Vista / XP / Server / 2003, Mac OS-X / OS-9, Linux, etc.



Label Meaning Connection
DTR Data Terminal Ready Connect to RST of microcontroller
RXD Data Receive Connect to TX of microcontroller
TXD Data Transmit Connect to RX of microcontroller
+5V 5V output Connect to VCC of microcontroller (5V only)
GND Ground Connect to GND of system
3V3 3.3V output Connect to 3V3 of microcontroller (3.3V only)

You can perform loopback test on this module by connecting its own TX and RX pins. This is the simplest method to check whether the serial data transmission is functioning properly.



Additional information

Dimensions 50 × 15 × 10 mm


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