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Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi

Name: Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi
Brand: WAVESHARE
SKU: 968473
Price: 2029 INR
Availability: InStock

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AI Summary

Multi-Brand Raspberry Pi Add on Boards (HATs) for everyday users

The Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi by WAVESHARE is a mid-range multi-brand raspberry pi add on boards (hats) designed for everyday users. It features Item Type: HAT and Compatibility: Pi Series.

₹2,029

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Estimated delivery: 16 Aug – 30 Aug

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Quick Specs

Item Type: HAT

Compatibility: Pi Series

HAT Type: Expansion HAT

UART Expansion Chip: SC16IS752

RS485 transceiver: SP3485

Communication: SPI

Ideal For

Everyday convenience

SKU: robu-968473Category: Multi-Brand Raspberry Pi Add on Boards (HATs)

About This Product

The Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi by WAVESHARE is a mid-range multi-brand raspberry pi add on boards (hats) designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

Item Type: HAT
Compatibility: Pi Series
HAT Type: Expansion HAT
UART Expansion Chip: SC16IS752
RS485 transceiver: SP3485
Communication: SPI
Data Transfer Rate: 300 ~ 921600 bps
Operating Voltage (VDC): 3.3 ~ 5 — works with standard household power

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

This is a Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi. This dual-channel isolated RS485 extension board specially designed for raspberry PI, which adopts SC16IS752+SP3485 solution embeds with protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc. This product adopts SC16IS752 as a controller. SC16IS752 is a dual-channel high-performance UART expansion chip that supports SPI and I2C interface communication. This module uses an SPI interface.

Useful link:

To do Hardware and Software setup, please follow this tutorial.

What's on Board:

Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi

SC16IS752 UART expansion chip
ADUM1412 digital isolator
PC817 optocoupler
SP3485 RS485 transceiver
B0505LS power supply isolation module
RT9193-33 power chip
SMAJ12CA transient suppress diode array
Auto-recovery fuse
Status indicator PWR: power indicator RXD/TXD: UART transceiving indicator
Raspberry Pi GPIO connector: for connecting Raspberry Pi
RS485 terminal
MCU control header: for connecting host control boards like Arduino
120Ω terminal resistor switch
Interrupt pin switch
Operating mode selection Half-auto: A=0, B=1 Full-auto: A=1, B=0

It is easy to control the 2-channel RS485 for auto-transceiving via the SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation. Note: Raspberry Pi is not included with this product.

Useful link:

To explore more about this module, please follow this link .

Features:

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
Adopts SC16IS752+SP3485 dual-chip combination, converts SPI to RS485, data rate up to 921600bps
Allows transceiving data manually or automatically, configured by DIP switch
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
Onboard auto-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
Onboard LEDs for indicating the power and transceiver status
Breakout SPI control pins, for connecting with host control boards like Arduino

Package Includes:

1 x 2-CH RS485 HAT

1 x 2x20PIN female pin header

1 x RPi screws pack (2pcs)

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.