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2-Channel Isolated RS485 Expansion HAT for Raspberry Pi Seeed

Original price was: $ 25.Current price is: $ 15.

SKU: us_4363751227453 Category: Raspberry Pi Tags: HAT, Raspberry Pi

Description
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DESCRIPTION

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 the SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation.

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

Specification

UART expansion chip: SC16IS752
RS485 transceiver: SP3485
Communication interface: SPI
Data rate: 300 ~ 921600 bps
Operating voltage: 3.3V / 5V
Dimensions: 65mm × 56.5mm
Mounting hole size: 3.0mm

Pinouts

PIN	RASPBERRY PI (BCM)	DESCRIPTION
VCC	5V	3.3V/5V power supply
GND	GND	Ground
SCK	P21 (SPI1 SCLK)	SPI clock input
MOSI	P20 (SPI1 MOSI)	SPI data input
MISO	P19 (SPI1 MISO)	SPI data output
CS	P18 (SPI1 CS)	SPI chip select
IRQ	P24	Interrupt output
EN1	P27	Channel 1 TX/RX enable: high for TX, low for RX
EN2	P22	Channel 2 TX/RX enable: high for TX, low for RX

RESOURCES

Development resource: Wiki

Quick Shipping and Professional Packaging

Thanks to our longstanding association with UPS FedEx DHL as well as other top international carriers, we are able to provide a range of shipping options. Our warehouse staff is highly trained to package your goods exactly according to the specifications we provide. Your products will go through an exhaustive inspection and securely secured prior to being delivered. Every day, we deliver to thousands of customers across multiple countries. This demonstrates our dedication to become the biggest online retailer in the world. Warehouses and distribution centres can be located in Europe as well as in the USA.

Orders that contain more than one item are assigned processing periods for each item.

We will inspect each and every one of the products before they are shipped. The majority of orders are shipped within 48 hours. Delivery is expected to take between 3 and 7 days.

Returns

We are not able to manage the stock at our warehouse or factory. This means that the actual stock could fluctuate at any moment. You may not receive your order after the order has been made.

The period of time is 30 days. If 30 days have passed by since your purchase and we are unable to offer you a refund or exchange.

The item you purchase must be in its original packaging and be unused. It must also be in its original packaging.