SKU:WSAL17221
2-Channel Isolated RS485 Expansion HAT for Raspberry Pi
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Kurzbeschreibung: 2-Channel Isolated RS485 Expansion HAT for Raspberry Pi, SC16IS752+SP3485 Solution, with Multi Onboard Protection Circuits
2-Ch RS485, SPI communication
Bulit-in power supply isolation, magnetical isolation, and TVS diode, etc.
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, 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.
- 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, lightningproof & anti-electrostatic
- Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, and improves shock proof performance
- Onboard LEDs for indicating the power and transceiver status
- Breakout SPI control pins, for connecting with host control boards like Arduino
- Comes with online development resources and manual (examples in C and Python)
| UART expansion chip | SC16IS752 |
|---|---|
| RS485 transceiver | SP3485 |
| Communication interface | SPI |
| Data rate | 300 ~ 921600 bps |
| Operating voltage | 3.3V / 5V |
| Dimensions | 65.0 × 56.5mm |
| Mounting hole size | 3.0mm |
Standard Raspberry Pi 40PIN GPIO Header, Customized For Raspberry Pi Series Boards
- SC16IS752 UART expansion chip
- π142M61 digital isolator
- PC817 optocoupler
- SP3485 RS485 transceiver
- B0505LS power supply isolation module
- RT9193-33 power chip
- SMAJ12CA transient suppress diode array
- Self-recovery fuse
- Status indicator PWR: power indicator RXD/TXD: UART transceiving indicator
- Raspberry Pi GPIO header 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
- Pin switching resistors
* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Lieferumfang
- 2-CH RS485 HAT x1
- 2x20PIN female pinheader x1
- RPi screws pack x1
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