2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety

2-CH RS485 HAT Designed for Raspberry Pi SC16IS752+SP3485 solution with embedded protection circuits stability/reliabilitysafety

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Product Description

Product introduction

2-Channel Isolated RS485 Expansion HAT for Raspberry Pi, SC16IS752+SP3485 Solution, with Multi Onboard Protection Circuits

【Overview】

This is a 2-channel isolated RS485 expansion HAT designed for Raspberry Pi, adopts the SC16IS752+SP3485 solution, with embedded protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc.

It is easy to control the 2-channel RS485 for auto transceiving via SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation.

【Characteristic】

1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards

2. Adopts SC16IS752+SP3485 dual chip combination, converts SPI to RS485, data rate up to 921600bps

3. Allows transceiving data manually or automatically, configured by DIP switch

4. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic

5. Onboard auto-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance

6. Onboard LEDs for indicating the power and transceiver status

7.Breakout SPI control pins, for connecting with host control boards like Arduino

8.Comes with development resources and manual (examples in C and Python)

【Specifications】

1. UART expansion chip: SC16IS752

2.RS485 transceiver: SP3485

3. Communication interface: SPI

4. Data rate: 300 ~ 921600 bps

5.Operating voltage: 3.3V / 5V

6. Dimensions: 65mm × 56.5mm

7.Mounting hole size: 3.0mm

RS485 CAN HAT Pictures

What's on the Board

1.SC16IS752 UART expansion chip

2.ADUM1412 digital isolator

3.PC817 optocoupler

4.SP3485 RS485 transceiver

5.B0505LS power supply isolation module

6.RT9193-33 power chip

7.SMAJ12CA transient suppress diode array

8.Auto-recovery fuse

9.Status indicator

PWR: power indicator

RXD/TXD: UART transceiving indicator

10.Raspberry Pi GPIO connector: for connecting Raspberry Pi

11.RS485 terminal

12.MCU control header: for connecting host control boards like Arduino

13.120Ω terminal resistor switch

14.Interrupt pin switch

15.Operating mode selection

Half-auto: A=0, B=1

Full-auto: A=1, B=0

Example

Dimensions

PACKAGE CONTENT

Weight: 0.029 kg

1.2-CH RS485 HAT x1

2.2x20PIN female pinheader x1

3.RPi screws pack (2pcs) x1

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Item Specifics

Model Number: 
 2-CH RS485 HAT
Demo Board Type: 
 ARM
Brand Name: 
 Waveshare

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