RS485 CAN HAT for , Allows Stable Long-distance Communication The RS485 CAN HAT enables your Pi to communicate with other devices stably in long-distance via RS485/CAN functions. 1. Standard 40PIN GPIO extension header, supports series boards 2. CAN function, onboard CAN controller MCP2515 via SPI interface, onboard transceiver SN65HVD230 3. RS485 function, controlled via UART, half-duplex communication, supports automatic TX/RX control without programming, onboard transceiver SP3485 1. Onboard (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit for RS485 transceiving, -proof & anti-electrostatic 2. Reserved control pins, allows to work with other control boards Operating voltage: 3.3V Mounting hole size: 3.0mm colour: blue Material: PCB size: 65mm x 30mm Package Contents: 6 x RS485 CAN HAT 6 x RPi screws pack (2pcs) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.