SD-04 · Chapter 12 · System Design (Open-Ended)
Smart pet-collar tag
Design a smart pet-collar tag that tracks activity, shows the pet's status with a small LED, and runs six months on a coin cell.
| Level | ●●● onsite design / senior |
| Track | Senior system |
| Really testing | Ultra-low-power wearable design. |
Full worked answer: in the book, page 290 — what to say first, how to explain it, the numbers worth quoting and the follow-ups. About the book →
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