MAX485 RS-485 Module TTL to RS-485 Module

Posted On July 12, 2019 at 7:33 am by / Comments Off on MAX485 RS-485 Module TTL to RS-485 Module

The modules makes it simple to use with microcontroller’s UART to to create bidirectional RS485 networks.


  • On-board MAX485 chip, low-power, Slew-Rate Transceiver
  • RS485 is brought out to 5.08 (mm) pitch 2P terminal for easy wiring RS-485 communication
  • All pins can be controlled by the microcontroller
  • 120R terminating resistor on board
  • Power LED Indication
  • 2.54mm Pitch interfacing.
  • Working voltage: 5V
  • Board size: 44 (mm) x14 (mm)

Typical Connections between MCU and MAX485

TX-OUT-UARTDI – Data Input
RX-IN-UARTRO – Receive Output
TX_ENRE-DE combined pins called as TX_ENWhen MCU Wants to Transmit it makes TE_EN high, else LOW