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Yoctopuce RS-485

  • 7900

This RS-485 sensor adapter is compatible with Valarm Tools Cloud for your Industrial IoT applications!

To get information from this sensor to Valarm Tools Cloud, just connect this sensor to any sensor hub like:


This device is a USB to RS-485 adapter, which doesn't require a driver and doesn't install a virtual COM port.

It is able to send and receive data on a RS485 bus. In addition, it is also able to autonomously query devices (e.g., using MODBUS) and interpret the received replies to expose them as if they came from a Yoctopuce sensor. This has advantages like: unique identifier, polling, callbacks, and a datalogger.

Be aware that this device will not work with applications designed to use a COM port: it is designed to be used with Yoctopuce sensor connector hubs.

The sensor device is electrically isolated, which means it can be connected on a RS-485 bus using a different ground circuit. The Yocto-RS485 conforms to ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards, and provides a ±15 kV ESD protection on RS-485 input/output pins.

If you need to interface a serial port working with RS-232 levels, use a Yocto-RS232. Or if you need a general serial sensor adapter see the Yocto-Serial sensor adapter.