# Open-Source Tools Open-source hardware tools, like the Bus Pirate and similar devices, are designed for probing, testing, and interacting with hardware systems at a low cost. These tools allow users to interface with various communication protocols, such as UART, SPI, or I2C. Open-source hardware tools are typically much cheaper than commercial devices. This affordability makes them accessible to a wider range of users, from beginners to professional security testers, without sacrificing functionality. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.hardbreak.wiki/hardware-hacking/basics/tools/hardware-tools/open-source-tools.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.