Raspberry Pi 4 based gateway adds RS-232/485 and RTC

Advantech has launched a compact, IP40-protected “Uno-220” IoT gateway enclosure and HAT designed for a BYO Raspberry Pi 4. The HAT provides a RS-232/485 port, an RTC with battery, and 4x additional GPIOs.

Source : Raspberry Pi 4 based gateway adds RS-232/485 and RTC

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