Low power dual-voltage RS485 converter

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OSHWA UID

ID000015 Project Website

Certification Date

April 10, 2026

Country

Indonesia

We present a low-power, dual-voltage RS485 to TTL converter designed specifically for energy-conscious Modbus applications. This device eliminates the need for external level shifters by providing native support for both 3.3V and 5V systems. Crucially, it features a logic-controlled shutdown mechanism, allowing the host microcontroller to power down the converter between measurement intervals, transforming the interface into an active, energy-efficient component.

Version

1.0

Licenses
Hardware
CERN-OHL-W-2.0
Software
GPL
Documentation
GPL
View Documentation

Certification mark

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Project Type
Electronics
IOT
Keywords
Low Power RS485; Modbus RTU; Microcontroller

Citations