라즈베리용 절연된 2채널 RS485 확장 HAT
(2-Channel Isolated RS485 Expansion HAT for Raspberry Pi)
개요
- 본 제품은 라즈베리용 절연된 2채널 RS485 확장 HAT입니다.
- SC16IS752 및 SP3485 칩을 탑재하여 SPI를 RS485로 변환하여 줍니다.
- 라즈베리의 SPI를 이용하여 2채널 RS485 통신을 할 수 있으며, 절연되어 있어 보드를 예기치 않은 상황으로부터 보호할 수 있습니다.
특징
- 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)
- 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