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

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.