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RS485 auto direction control

This is a normal RS485 circuit.

It needs to control direction(RE/DE) pin.

Or you can use this circuit for auto direction control.

I recommend the MAX13487 chip. It is an RS485 chip with auto-direction control.

You don't need to control direction. Just tie direction pin (RE/DE) to VDD (Vcc). This chip helps programmers no longer have to worry about direction-control.

Charles's Blog

wikiblog/rs485auto/index.txt · Last modified: 2022/06/24 21:54 by COMFILE Technology