RS485 Expansion HAT for Raspberry Pi - 2-Channel Isolated

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100% of 100

SKU: WS-17221 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.

$31.75 AUD, inc GST

$28.86 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 24th of Dec

Quantity Discounts:

10-25 $27.71 (exc GST)
25+ $26.85 (exc GST)

Featuring a standard Raspberry Pi 40PIN GPIO header, it utilises a combination of the SC16IS752 and SP3485 chips to convert SPI to RS485, allowing for data transfer rates of up to 921600bps. Users can transceive data both manually and automatically, depending on their configuration. The board also includes an onboard TVS (Transient Voltage Suppressor) that mitigates surge and transient spike voltages. There is also an onboard auto-recovery fuse and protection diodes as an added layer of device protection.

Note: This product does not come with mounting hardware.

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

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