It is a straightforward way to communicate, featuring both a transmitter and receiver, and is also one of the most simple ways to communicate with a device. That means it sends data bit-by-bit via a communication port like USB. Serial communication takes place over a serial cable and is a linear form of transferring data. This serial connection is a legacy hardware connector that has been used for decades. While you most likely know what USB is, TTL means transistor-transistor logic, a digital logic solution to process and interpret information. We'll be using a USB-to-TTL serial cable, which is much smaller and lighter than the serial cables of old. If you have ever used an older computer or printer, you might remember those standard RS-232 serial connectors, but there are more current and commonly known interfaces like Ethernet, FireWire, and USB that can connect to a machine's console for diagnostic purposes. If you don't have a power source, you can also power your Linux distro over the cable at the same time. With the help of an old-school connecting standard, though, you can log into your Pi from any computer using a simple cable. Connecting to your headless Raspberry Pi on the go typically requires a network connection or carrying around bulky peripheral hardware like a screen and keyboard.
0 Comments
Leave a Reply. |