How to SSH into Your Raspberry Pi Using a USB to TTL Serial Cable

Using a headless Raspberry Pi without a network connection can be a frustrating experience, but with the help of an old-school technique, we can SSH directly into our Pi with only a USB to TTL serial cable. This is also handy if you don't have a power source, since we can both access and power our Linux distro with no peripherals needed. A serial connection is a legacy hardware connector that has been used for decades. If you have ever used an older computer or printer, you might recognize the standard RS-232 serial connector pictured below, but there are more current and commonly known... more

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