Overview

MiniPIIO RS485 module for Raspberry Pi PCB Only

The MiniPiio RS485 is a RS485 to TTL 3.3V converter board specifically designed to work with your Raspberry Pi.

Its compact design is a quick and easy solution to adding RS485 communications to your Raspberry Pi Projects.

The MiniPiio RS485 uses 3.3V components and is completely voltage compatible with the Raspberry Pi.

The board connects directly to the Raspberry Pi's UART Rx and Tx to provide RS485 half-duplex communications.

The board uses the industry standard MAX3485* for signal conversion.

An industry standard 9-Way D Connector (Male) and a 3-W screw provides provides the serial connection to the outside world.

Pin-out (9W D):

Pin-5 = 0V Pin-8 = B (Data +) Pin-9 = A (Data -)

Note: GPIO signals are required to control the MAX3485* DE and !RE.

PIIO and MiniPIIO are modular electronic building block for the Raspberry Pi and may be used with our RPi Expander2.

*or Equivalent IC

Details

Uses 3.3V MAX3485* IC
Standard 9-Way D Connector
3-Way 3.81mm Screw Terminal
RS485 Half-duplex communications
Selectable 120R terminating resistor
Uses Raspberry Pi Expansion Connector
Suitable for standard TTL 3.3V input.
Board Dimensions: 50 x 40 mm

Use Cases

Use a serial console with your Raspberry Pi
Connect to legacy serial systems
Communicate with microcontrollers

MiniPiio RS485 is compatible with the Raspberry Pi

Raspberry Pi and its Logo are a Registered Trademark of the Raspberry Pi Foundation

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