RS485 Expansion HAT for Raspberry Pi - 2-Channel Isolated

Rating:

100% of 100

SKU: CE07311 Brand: Waveshare

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.

$32.10 AUD, inc GST

$29.18 AUD, exc GST

Available with a lead time
Expect dispatch between Apr 30 and May 06

Quantity Discounts:

10-25 $28.31 (exc GST)
25+ $27.73 (exc GST)

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.

Note: This product does not come with mounting hardware.

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 manual (examples in C and Python)

Specifications

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

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

Documents

Wiki

This product is listed in:

Other Favourites>Waveshare>IoT/Communication

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!