Introduction to Hardware Protocols

As you begin diving into hardware hacking and reading printed circuit boards (PCB) you will likely come across several common protocols.  This article isn’t intended to be an exhaustive list of content, but rather a quick guide to identifying which protocols are commonly used, what they require, and what common tools will let you interface with them.  I’ll be covering the following protocols in this article:

  • RS-232
  • USB
  • I2C
  • SPI
  • JTAG
  • UART
  • USART

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