Adafruit RS-232 Full Pinout Level-Shifter Breakout

Availability
In stock

Full-pinout RS-232 level-shifter breakout with a DE-9 female socket connector and MAX3243 transceiver, exposing UART data, hardware flow-control lines, Valid, and Off signals for 3 V to 5 V microcontroller projects.

Pinout

Logical pinout · physical placement not verified
ADAFRUIT RS-232 FULL PVinDSRGNDDTRTXDCDRXOFFRIVLDCTSDE-9 connectorRTS
  • Vin
    Type · Power
  • GND
    Type · Ground
  • TX
    Type · UART
  • RX
    Type · UART
  • RI
    Type · Control
  • CTS
    Type · UART
  • RTS
    Type · UART
  • DSR
    Type · Control
  • DTR
    Type · Control
  • DCD
    Type · Control
  • OFF
    Type · Control
  • VLD
    Type · Unknown
  • DE-9 connector
    Type · Unknown

Start wiring

Ethernet · UART · SPI · Shield

Verify supply voltage and logic levels before powering up.

Module pins: Vin, GND, TX, RX. Schematik maps them to your board in the app.

Wired comms

118 other options

W5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.

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