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6646 – FT232 USB UART Board (mini)/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The FT232 USB UART Board (mini) converts a USB interface to TTL level. It supports baud rates from 300 bps to 3 Mbps and can be set to 5 V or 3.3 V via jumper.

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Technical overview

  • Model: USB-to-UART-TTL converter
  • Power supply: 5 V
  • Baud rate range: 300 bps to 3 Mbps
  • TTL levels: 5 V or 3.3 V, switchable by jumper
  • Supported operating systems: Windows 7/8/8.1/10/11, macOS, Linux, Android
  • Interfaces: TXD, RXD, RTS#, CTS#, RI#, DCD#, DTR#, DSR#, RESET#, CBUS0-CBUS4
  • Pin layout: top row VCC GND TXD RXD; bottom row 5V GND CTS RTS (label facing up)
  • Operating range: temperature -15 °C to +70 °C; humidity 5 % to 95 % RH

Commands and examples – verify before use:  

lsusb
ls /dev/ttyUSB*
sudo minicom -D /dev/ttyUSB0

Notes and version constraints

  • The source references “FT32 Driver-Windows 64 bits”, likely a typo for “FTDI”; confirm the exact driver version before installation.
  • COM port assignment may change; if recognition issues recur, pin the COM port manually.
  • For power-supply problems with external devices (e.g., flickering TX/RX indicators), the source mentions an FTDI programming step; this requires FTDI programming software and human confirmation.
  • The source contains several incomplete placeholders (“{{{name2}}}
  • {{{userDefinedInfo}}}” etc.) that do not provide technical facts.
  • Troubleshooting steps (driver swap, cable/port/PC replacement) are generic diagnostics and require hands-on verification on the device.
  • To verify functionality, shorting TXD and RXD and sending data through a serial debugging tool is recommended; this requires a suitable tool and a physical connection.
  • The source warns about low-quality knock-offs; chip authenticity should be verified before deployment.

Source and revision record

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