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a Universal Asynchronous Receiver/Transmitter, better known as serial port

40 votes
11 answers
74k views

How to get more than one uart interface

Ok, I have one uart interface (TXD GPIO 14, RXD GPIO 15). I want at least one more uart interface. Possible solutions: Bit banging: Use two unrelated spare GPIOs. … CD4066BC. spi to 2 x uart bridge: Didn't find a suitable part (availability, price, dil package) usb to uart: Expensive Are there other options? I'm inclined to switching, if it can be done. …
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