SKU: SBCD-1394
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Waveshare Isolated RS485/RS232 HAT for Raspberry Pi, SPI

₹1,719.00 (Inclusive of all taxes)
Out of Stock

This Waveshare Isolated RS485/RS232 Expansion HAT provides robust, multi-protocol serial communication for Raspberry Pi boards via SPI. Utilizing the SC16IS752 dual UART and SP3485/SP3232 transceivers, it delivers reliable, electrically isolated data links suitable for industrial applications.

Features

  • Provides isolated RS485 and RS232 serial communication for Raspberry Pi.
  • Integrates SC16IS752 dual UART for efficient SPI control with data rates up to 921600bps.
  • Features robust protection including power isolation, magnetic coupling, TVS, and resettable fuses.
  • Designed for industrial reliability, safeguarding your Raspberry Pi from electrical surges and noise.
  • Compatible with all Raspberry Pi boards featuring the standard 40-pin GPIO header.

Out of stock

Description

The Waveshare Isolated RS485/RS232 HAT is engineered to provide the Raspberry Pi with reliable and protected multi-protocol serial communication capabilities. This expansion board leverages a comprehensive chip combination including the SC16IS752 dual UART expansion chip, SP3485 for RS485, and SP3232 for RS232, enabling a high data rate of up to 921600bps over an SPI interface. Its design focuses on industrial-grade stability and safety, incorporating built-in power isolation, ADI magnetic coupling isolation, and critical TVS protection circuits.

Designed for demanding environments, the HAT ensures robust data integrity and system safety. The integrated isolation safeguards the Raspberry Pi from voltage spikes, ground loops, and electrical noise common in industrial settings. Additionally, features like an onboard resettable fuse, protection diodes for RS485, and TVS (Transient Voltage Suppression) effectively mitigate overcurrent, overvoltage, and electrostatic discharge, extending the lifespan and reliability of connected systems.

Key Features

  • Based on Raspberry Pi 40-pin GPIO, ensuring broad compatibility with Pi series boards.
  • Integrates SC16IS752 dual UART for efficient SPI to RS485/RS232 conversion.
  • Supports data rates up to 921600bps, catering to high-speed serial communication needs.
  • RS485 interface allows both manual and automatic data transmission/reception, configurable via DIP switch.
  • Onboard resettable fuse and protection diode for RS485 prevent overcurrent and overvoltage events.
  • Includes TVS (Transient Voltage Suppression) to protect against surge voltage and electrostatic discharge.
  • Features power supply and serial port transceiver indicators for easy status monitoring.
  • Exposes the SPI control interface, enabling integration with other main control boards like Arduino.

Applications

  • Industrial Automation & Control Systems
  • Data Acquisition & Remote Monitoring
  • IoT Gateways & Sensor Networks
  • Building Management Systems
  • Embedded Serial Communication Interfaces

Technical Specifications

UART Expansion ChipSC16IS752
RS485 TransceiverSP3485
RS232 TransceiverSP3232
Communication InterfaceSPI
Data RateUp to 921600bps
Operating Voltage3.3V / 5V
Dimensions65mm × 56.5mm

Frequently Asked Questions

What communication protocols does this HAT support?

This HAT supports both RS485 and RS232 serial communication protocols. It utilizes the SC16IS752 dual UART expansion chip, along with SP3485 and SP3232 transceivers, to facilitate robust and isolated communication, making it versatile for various industrial and data acquisition applications.

How does the isolation feature benefit this HAT?

The HAT incorporates built-in power isolation and ADI magnetic coupling isolation. This crucial feature protects your Raspberry Pi from electrical surges, ground loop interference, and noise in harsh industrial environments. It ensures data integrity and enhances the overall system's stability and longevity.

What Raspberry Pi models are compatible with this HAT?

This HAT is designed to be compatible with Raspberry Pi series motherboards featuring the standard 40-pin GPIO interface. This includes models like the Raspberry Pi 4, Raspberry Pi 3B+, Raspberry Pi Zero W, and others, ensuring broad applicability across the Raspberry Pi ecosystem.

Can I use this HAT with other microcontrollers besides Raspberry Pi?

Yes, while primarily designed for Raspberry Pi, the HAT leads out its SPI control interface. This allows experienced users to connect and control the HAT using other main control boards such as Arduino or STM32-based microcontrollers, leveraging its robust isolated serial capabilities.

Package Includes

  • 1 x Waveshare Isolated RS485 RS232 Expansion HAT for Raspberry Pi, SPI Control

Additional Information

Weight 0.242 kg
Dimensions 6.5 × 5.65 cm