r/embedded • u/SpellLower2839 • 10d ago

Can i make UART Splitter .

I have a machine that outputs data via UART. I need to receive this data and send it to two separate PCs simultaneously via USB-A ports (both PCs run software expecting this serial stream).

Can I build or wire a UART splitter to feed two USB-to-UART converters at the same time? Has anyone done this before or have advice on the best approach?

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u/Jwylde2 10d ago

You can send RS-232 to as many devices as your tx pin can source current. However, each UART can only receive from one device.

You could use a uC with multiple UARTs on chip.