Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 and 1-Ch CAN, Multi Protections. Bulit-in power supply isolation, ADI magnetical isolation, and TVS diode, etc.
Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
1-Ch CAN, adopts MCP2515 controller and CAN transceiver, converts SPI to CAN
2-Ch RS485, adopts SC16IS752+SP3485 dual-chip combination, converts SPI to RS485
Onboard power conversion circuit, supports 8~28V wide voltage power supply, can power the Raspberry Pi at the same time
Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal
Onboard unibody digital isolation, for isolating the signal, reliable and jamproof, low power consumption
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, improves shock resistance
Onboard 120? terminal resistor, configured by jumper
Onboard terminals and pin headers, more convenient connection
Breakout SPI control pins, for connecting with host control boards
Specifications
Expanded interface: 2-Ch RS485 + 1-Ch CAN
COMMUNICATION INTERFACE: SPI
CAN Controller: MCP2515
CAN transceiver: SIT65HVD230DR/SN65HVD23D
CAN Baud Rate: ?1Mbps
UART Expansion Chip: SC16IS752
RS485 transceiver: SP3485
RS485 Baud Rate: 300~921600 bps
Power Supply: External power supply terminal OR Raspberry Pi
External power supply Range: DC 8~28V
Operating Voltage: 3.3V
Dimensions: 65 × 56.5 mm
What's On Board
Chip Features
MCP2515 CAN controller
SIT65HVD230DR/SN65HVD23D CAN transceiver
SP3485 RS485 transceiver
SC16IS752 UART expansion
?163M31 digital isolator
B0505LS-1W Power supply isolation
Others
Power supply interface DC 8~28V, can power the HAT and Raspberry Pi
RS485 bus interface Connect via screw terminals/pin header
CAN bus interface Connect via screw terminals/pin header
Raspberry Pi GPIO header
SPI control header for connecting with host boards like STM32/Arduino
CAN terminal resistor jumper Switch to 120? by default
RS485 Terminal resistor jumper Switch to 120? by default
Manufacturer according to GPSR Waveshare International Limited, World Trade Plaza south side, Fuhong Rd, Futian District, 518000 Shenzhen, China, [email protected], https://waveshare.com/
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