Description M5Stack Tail RS485 is a compact TTL to RS485 converter designed for the ATOM series. It converts TTL logic into RS485 signaling through the SP485EEN-L transceiver, making this module a practical choice for RS485 multi-point communication, controller expansion, and industrial serial communication. The built-in AOZ1282CI step-down design also converts 9V to 24V input to 5V for the Type-C side, which helps simplify power wiring in field deployments and makes it a capable ATOM RS485 converter. Features Tail RS485 works as a reliable TTL to RS485 converter for ATOM projects. The onboard SP485EEN-L handles stable line-level translation for industrial serial communication. The built-in AOZ1282CI step-down stage supports 9V to 24V input conversion to 5V output. This module is well suited to RS485 multi-point communication, device networking, and controller-to-field bus integration. The compact tail form factor makes it useful for embedded control systems where an ATOM RS485 converter is needed without extra wiring boards. Specifications Product M5Stack Tail RS485 External Port VH-3.96 4P Level Conversion 9V ~ 24V to 5V Level Conversion IC SP485EEN-L Step-Down IC AOZ1282CI Use Case TTL to RS485 conversion Case Material Plastic (PC) Product Size 54.0 x 96.0 x 10.0mm Applications M5Stack Tail RS485 is a useful bridge when a controller must join an RS485 bus without redesigning hardware. It fits RS485 multi-point communication networks, automation nodes, building controls, sensor buses, and other industrial serial communication scenarios. Because it works as a compact TTL to RS485 converter, it is also a natural ATOM RS485 converter for field debugging and device polling tasks. Product List 1 x Tail RS485 1 x HT3.96-4P Terminal 1 x I/O Sticker Other Content The schematic and official model size sheet are useful when checking pin mapping, voltage conversion, or enclosure clearance before installation. Resources M5Stack Tail RS485 Official Docs Tail RS485 Model Size PDF SP485EEN Datasheet AOZ1282CI Datasheet Tail RS485 Arduino Example Tail RS485 UIFlow Example FAQ What is this module mainly used for?It is a compact TTL to RS485 converter for ATOM-based systems that need RS485 multi-point communication. Why is it useful in industrial projects?M5Stack Tail RS485 simplifies industrial serial communication and works well as an ATOM RS485 converter for field devices, controllers, and bus-connected equipment.
