MODBUS with MAX-485 TTL to RS-485 converter module - Configuration - Home Assistant Community
Raspberry Pi industrial HAT features RS-485 and 1-Wire
Amazon.com: Waveshare RS485 CAN HAT Designed for Raspberry Pi Allowing Stable Long-Distance RS485/CAN Communication Compatible with Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W/WH/Zero 2W Series Boards : Electronics
RS-485 Serial Communication between Raspberry Pi and Arduino UNO
Raspberry Pi CM4 Carrier Board comes with RS485/Modbus, CAN, 1-wire interfaces (Crowdfunding) - CNX Software
CAN Bus Plus RS485 HAT for Raspberry Pi
Read holding registers from RS485 Modbus RTU by Raspberry Pi Pico Micro Python - YouTube