Raspberry Pi 4 based gateway with RS-232/485 and RTC sells for $90 plus the Pi
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.
Advantech has launched what appears to be its first Raspberry Pi based embedded system. The $90, 100 x 70 x 33mm Uno-220 IoT gateway is designed to be powered by a bring-your-own Raspberry Pi 4 Model B.
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Advantech UNO-220 is an Industrial RS232/RS485 Gateway Kit
Advantech UNO-220 is an Industrial RS232/RS485 Gateway Kit for Raspberry Pi 4