![]() Serial interfaces stream their data, one single bit at a time. An 8-bit data bus, controlled by a clock, transmitting a byte every clock pulse. They usually require buses of data - transmitting across eight, sixteen, or more wires.ĭata is transferred in huge, crashing waves of 1’s and 0’s. Serial Parallel interfaces transfer multiple bits at the same time. ![]() Hundreds of communication protocols have been defined to achieve this data exchange, and, in general, each can be separated into one of two categories: parallel or serial. In order for those individual circuits to swap their information, they must share a common communication protocol. Introduction Embedded electronics is all about interlinking circuits (processors or other integrated circuits) to create a symbiotic system. That’s right! USB, which stands for Universal Serial Bus, is a serial port! On the Arduino Uno, this USB connection is broken out through onboard hardware into two digital pins, GPIO 0 and GPIO 1, which can be used in projects that involve serial communication with electronics other than the computer.
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