![]() ![]() Protocols being this old without any real replacement only suggests that they are, in fact, indispensable and will continue to be used in electronics for the foreseeable future. Following on we will build a real world circuit, using the SPI library, to see how easy it is to use SPI on Arduino. Even at high frequencies and longer range communication, serial protocols still beat many modern parallel communications protocols available today.Īlthough many might think that serial communications like UART, SPI, and I2C have the disadvantage of being old and outdated, the fact remains that they have proven their reliability over several decades. With only a few wires sending data once at a time, serial has proven its reliability to send the complete packets of data without any loss or corruption when transmitted. Generally using only two to four wires for transmitting and receiving data, serial protocols are an essential mode of communication for electronics that only have a few ports to spare.Īnother reason is its simplicity which translates to reliability. In the Arduino SPI library, this is controlled by. With the rise of parallel and many wireless protocols, serial communications have never fallen out of popularity. The interface can send data with the most-significant bit (MSB) first, or least-significant bit (LSB) first. ![]() Why Serial Communications Are Here to Stay
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