CP2102 USB to TTL RS232 RS485 6-in-1 Converter Module 3.3V 5V with Dupont Cable

CP2102 USB to TTL RS232 RS485 6-in-1 Converter Module 3.3V 5V with Dupont Cable
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  • Product Code:SQ1906
  • Availability: 1000
  • $1.69
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Tags: CP2102, USB converter, RS485, RS232, TTL, 6-in-1

The CP2102-MULTI is a 6-in-1 serial converter module that bridges USB to TTL, RS232, and RS485 interfaces in a single compact board, eliminating the need for multiple separate adapters. Built around the Silicon Labs CP2102 USB-to-UART bridge chip, the module supports six conversion modes—USB-TTL, USB-RS232, USB-RS485, TTL-RS232, TTL-RS485, and RS232-RS485—selected through onboard DIP switches without rewiring. It operates with both 3.3V and 5V logic levels and can supply up to 500mA to an external microcontroller system, making it suitable for programming and debugging ARM, STM32, DSP, and Arduino-based boards. A resettable 500mA fuse protects the host computer against short circuits and overcurrent, while red, yellow, and green LEDs indicate power, receive, and transmit status for quick troubleshooting. Data rates reach up to 2 Mbps, and the board measures only 31mm × 18mm, small enough to avoid blocking adjacent USB ports on a laptop. This multi-protocol serial adapter suits industrial RS-485 communication, RS-232 device integration, microcontroller firmware download, and laboratory debugging where a flexible CP2102 USB converter is required.

CP2102 USB Converter Application

  1. Programming and debugging ARM, STM32, DSP, and Arduino microcontrollers through a USB to TTL connection.
  2. Industrial RS-485 device communication using the 6-in-1 serial module in USB-485 or TTL-485 mode.
  3. Connecting legacy RS-232 equipment to modern USB-only computers.
  4. Bridging RS-232 and RS-485 networks without additional adapters.
  5. Laboratory and field debugging requiring a compact multi-protocol serial adapter with status LEDs.

CP2102 USB Converter Specifications

  1. Model: CP2102-MULTI.
  2. USB-to-serial chip: Silicon Labs CP2102.
  3. Conversion modes: USB-TTL, USB-RS232, USB-RS485, TTL-RS232, TTL-RS485, RS232-RS485.
  4. Mode selection: onboard DIP switches (2-position) and patch switch S1.
  5. Logic voltage compatibility: 3.3V and 5V.
  6. Power output to external device: 3.3V or 5V, maximum 500mA.
  7. Protection: resettable 500mA fuse (overcurrent and short-circuit).
  8. Status indicators: power (yellow), RX (red), TX (green) LEDs.
  9. Data rate: up to 2 Mbps.
  10. USB interface: USB 2.0 full-speed compatible.
  11. Supported operating systems: Windows XP/7/8/10 (32/64-bit), Linux, macOS, WinCE.
  12. Board dimensions: 31mm × 18mm (3.1cm × 1.8cm).
  13. Operating current: 100mA to 500mA.
  14. Package contents: module, Dupont cables.
Interfaces
Interface Type TTL, RS232, RS485
Electrical Parameters
Input Current 500mA (at 5V) , 100mA (at 3.3V)
Input Voltage 3.3V , 5V
Board Parameters
Main Chip CP2102
Pin Count 6 Pin
Physical Parameters
Size 31mm x 18mm

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