This breakout board implements the MAX485 IC from Maxim. It’s a transceiver that allows you to convert UART serial stream into RS485 protocol. It is a very low-power component, and can operate with a power supply up to 5V (3.3V is allowed). With this board you can go as fast as 2.5Mbps on the RS485 lines.

The board has the MAX485 DE/RE (Driver/Receiver Enabled) on one of its pins, and it is connected to an on-board indication led. There is also a solder-option pad to optionally enable the terminating load resistor (220 ohm).

The pins of the board are 0.1″ (2.54mm), so you can solder a header strip and plug it to any standard breadboard.

The board comes fully assembled and tested.


  • 5V power supply.
  • Half-duplex.
  • Very low power consumption.
  • On-board indicator led.
  • On-board 220 ohm terminating load (through solder option pad).
  • Breadboard friendly.
  • Driver/Receiver Enabled connected to the RTS pin.
  • Max. 32 receivers on the bus.


  • Low-Power RS-485 Transceivers
  • Low-Power RS-422 Transceivers
  • Level Translators
  • Transceivers for EMI-Sensitive Applications
  • Industrial-Control Local Area Networks



Additional information

Weight 0.010 kg
Dimensions 22.15 × 14.22 × 3.41 mm



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AK-MAX485 RS485 Transceiver Breakout (Retired)

Breakout board for the Maxim MAX485 RS485 transceiver.

This product is retired. You can find a replacement here: the AK-RS485/422-HD.


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