Looking for Rs485 Expansion Hat? Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi is available at Zbotic with fast shipping across India.
This is a 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:
- 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)
About Rs485 Expansion Hat
Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by WAVESHARE, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.
Product Details
- Brand: WAVESHARE
- SKU: AI1550
- Category: Raspberry Pi Hats
Why Buy from Zbotic?
Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Rs485 Expansion Hat and other products.
Applications
Rs485 Expansion Hat can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Rs485 Expansion Hat today and start building.
Waveshare 2-Channel Isolated RS485 Expansion HAT for Overview
The Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi is a dual-channel extension board that adds isolated RS-485 communication to your Pi via SPI. It integrates SC16IS752 UART expansion, SP3485 transceivers and isolation circuits for reliable, noise-immune data links in industrial or remote monitoring projects.
Key Features of Waveshare 2-Channel Isolated RS485 Expansion HAT for
- Dual-channel RS-485 transceiver using SP3485 for robust half-duplex communication
- SC16IS752 UART expansion chip supports data rates from 300 to 921600 bps over SPI
- Isolation circuits: ADUM1412 digital isolator, PC817 optocoupler and TVS diodes for surge protection
- Selectable 3.3 V or 5 V operating voltage compatible with various Raspberry Pi models
- Standard 3.0 mm mounting holes for secure HAT attachment to Raspberry Pi GPIO header
- Genuine Waveshare module shipped fast from Zbotic with complete protection and support
Applications and Use Cases
- Connecting multiple industrial sensors or PLCs on a single RS-485 bus
- Remote data acquisition in agricultural or environmental monitoring systems
- Building automation networks for HVAC, lighting and access control
- Multi-drop motor controller communication in robotics and CNC machines
- Long-distance telemetry in renewable energy installations
- Converting UART data from legacy equipment to RS-485 for modern IoT gateways
How to Use Waveshare 2-Channel Isolated RS485 Expansion HAT for
Mount the HAT onto the Raspberry Pi GPIO header and connect the SPI pins (SCLK, MOSI, MISO, CS) to SC16IS752. Supply 3.3 V or 5 V via the Pi’s power pins, then wire your RS-485 A/B lines to the terminal blocks. Install the Waveshare driver or use spidev libraries to initialize each UART channel and begin half-duplex communication. Refer to our detailed hardware and software tutorial for setup scripts and test examples.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Q: Which Raspberry Pi models are compatible with this RS-485 HAT?
This HAT is compatible with all Raspberry Pi models that expose a 40-pin GPIO header, including Pi 4, Pi 3, Pi Zero and Pi Zero W.
Q: How do I select between 3.3 V and 5 V operation?
A onboard jumper allows you to choose the supply voltage for the RS-485 transceiver and logic. Set it to 3.3 V or 5 V depending on your Pi’s voltage and your external device requirements.
Q: Can I use both RS-485 channels simultaneously?
Yes. The SC16IS752 provides two independent UARTs over SPI, so you can run two separate RS-485 networks or bus segments concurrently.
Raspberry Pi Nextcloud: Self-Hosted Cloud Storage
Table of Contents Why Self-Host Cloud Storage with Nextcloud Hardware Requirements for Nextcloud Installing Nextcloud on Raspberry Pi...
Read More →
Raspberry Pi File Server: Samba NAS for Home Network
A Network Attached Storage (NAS) device lets every computer, phone, and smart TV on your home network access...
Read More →
Raspberry Pi HAT vs pHAT: Differences and Compatibility
If you've spent any time in the Raspberry Pi ecosystem, you've likely come across two terms that often...
Read More →Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Model | RS485 |
| Interface / Protocol | RS485 |
| SKU | AI1550 |
| Weight | 0.07 kg |
| Availability | In Stock |
Applications & Use Cases
The Waveshare 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi is a versatile raspberry pi hats used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels
Pooja Mishra (verified owner) –
Decent Waveshare 2-Channel Isolated RS485 Expansion HAT. Setting up was straightforward. Good for the price.
Urmi Thakur (verified owner) –
Good quality Waveshare 2-Channel Isolated RS485 Expansion HAT. Shipping was fast. Minor scuff on the box but product is fine.
Nakul Ghosh (verified owner) –
Good Waveshare 2-Channel Isolated RS485 Expansion HAT. Runs well but gets warm under load. Added a fan and it’s perfect now.
Pankaj Mehta (verified owner) –
Perfect Waveshare 2-Channel Isolated RS485 Expansion HAT for my machine learning project. Great performance for the size.
Kiara Modi (verified owner) –
Okay Waveshare 2-Channel Isolated RS485 Expansion HAT. Works but I expected better thermal performance out of the box.
Abhishek Chatterjee (verified owner) –
Outstanding! This Waveshare 2-Channel Isolated RS485 Expansion HAT powers my home automation hub. Zbotic delivers genuine products.
Gauri Kohli (verified owner) –
Love this Waveshare 2-Channel Isolated RS485 Expansion HAT! Running Python scripts 24/7 without any issues for months now.
Arun Dave (verified owner) –
This Waveshare 2-Channel Isolated RS485 Expansion HAT is ideal for learning Linux and programming. Bought for my son, he loves it!
Parth Shah (verified owner) –
Decent Waveshare 2-Channel Isolated RS485 Expansion HAT. Setting up was straightforward. Good for the price.
Yashwant Khanna (verified owner) –
Good Waveshare 2-Channel Isolated RS485 Expansion HAT. Runs well but gets warm under load. Added a fan and it’s perfect now.
Kavya Kapoor (verified owner) –
Perfect Waveshare 2-Channel Isolated RS485 Expansion HAT for my machine learning project. Great performance for the size.
Ananya Negi (verified owner) –
Amazing Waveshare 2-Channel Isolated RS485 Expansion HAT. Set up Retro Pi and it works like a charm. Great purchase!
Zara Chopra (verified owner) –
This Waveshare 2-Channel Isolated RS485 Expansion HAT is ideal for learning Linux and programming. Bought for my son, he loves it!
Manish Batra (verified owner) –
Excellent Waveshare 2-Channel Isolated RS485 Expansion HAT! Running my home server on this. Super reliable.
Tanmay Shetty –
Good quality Waveshare 2-Channel Isolated RS485 Expansion HAT. Shipping was fast. Minor scuff on the box but product is fine.
Raj Srivastava (verified owner) –
Great Waveshare 2-Channel Isolated RS485 Expansion HAT. Using it as a NAS server. Stable and reliable performance.
Ananya Patel –
Great Waveshare 2-Channel Isolated RS485 Expansion HAT. Using it as a NAS server. Stable and reliable performance.
Diya Saini (verified owner) –
Love this Waveshare 2-Channel Isolated RS485 Expansion HAT! Running Python scripts 24/7 without any issues for months now.
Hardik Naidu (verified owner) –
Superb quality Waveshare 2-Channel Isolated RS485 Expansion HAT. Genuine product, fast delivery. Using it for a media center.
Sarthak Pillai (verified owner) –
Perfect Waveshare 2-Channel Isolated RS485 Expansion HAT for my machine learning project. Great performance for the size.
Chitra Dhillon –
Outstanding! This Waveshare 2-Channel Isolated RS485 Expansion HAT powers my home automation hub. Zbotic delivers genuine products.
Mahesh Saxena (verified owner) –
Good Waveshare 2-Channel Isolated RS485 Expansion HAT. Runs well but gets warm under load. Added a fan and it’s perfect now.
Sakshi Vohra (verified owner) –
Good Waveshare 2-Channel Isolated RS485 Expansion HAT. Runs well but gets warm under load. Added a fan and it’s perfect now.
Tanmay Dubey –
Amazing Waveshare 2-Channel Isolated RS485 Expansion HAT. Set up Retro Pi and it works like a charm. Great purchase!
Kartik Mishra (verified owner) –
Perfect Waveshare 2-Channel Isolated RS485 Expansion HAT for my machine learning project. Great performance for the size.
Rishabh Pandey (verified owner) –
Amazing Waveshare 2-Channel Isolated RS485 Expansion HAT. Set up Retro Pi and it works like a charm. Great purchase!
Anirudh Agarwal (verified owner) –
This Waveshare 2-Channel Isolated RS485 Expansion HAT is perfect for my IoT gateway project. Handles everything smoothly.
Anjali Gupta –
Okay Waveshare 2-Channel Isolated RS485 Expansion HAT. Works but I expected better thermal performance out of the box.
Gaurav Modi –
Good Waveshare 2-Channel Isolated RS485 Expansion HAT. Runs well but gets warm under load. Added a fan and it’s perfect now.