This is a subject that deserves its own book, and indeed, many have been written, but our goal here is to give you a solid head start. Whether you’re building your first IoT gadget or optimizing firmware for a custom PCB, there are some time-tested principles that can help you steer clear of classic mistakes. By following these principles, you can create your own unique problems rather than recreating those already made by others. These aren’t rules to blindly follow, but patterns worth understanding and adapting. Even small design decisions can have big consequences.
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