EngineElectronicAccessories Launches Industrial RS-485/Modbus HAT for Raspberry Pi with OpenPLC Support

EngineElectronicAccessories, a Swedish developer, has launched the Industrial RS-485/Modbus HAT for Raspberry Pi. This board supports 7V-32V DC input and is optimized for industrial automation and OpenPLC applications. It features an RS-485 transceiver, diagnostics LEDs, and allows direct powering from a 24V rail. Priced at $9, it is partially open-source with documentation available on GitHub.

Published Mar 20, 2026

EngineElectronicAccessories has introduced the Industrial RS-485/Modbus HAT for Raspberry Pi, aimed at industrial automation and OpenPLC. The HAT supports a DC input range of 7V to 32V, enabling direct powering from a 24V rail.

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It includes an RS-485 transceiver with TVS diode protection and features Tx/Rx LEDs for diagnostics. Optimized for OpenPLC, it is suitable for energy-monitoring projects and is available on Tindie for $9, with shipping costs from Sweden ranging from $7.4 to $15. Documentation is partially open source and available on GitHub.