--- title: "Racing to Sleep" url: https://daily.dev/posts/racing-to-sleep-qttnzzadw source_url: https://www.embeddedrelated.com/showarticle/1316.php type: article source: "EmbeddedRelated" published: 2026-05-31T07:47:51.314Z updated: 2026-05-31T08:47:26.150Z tags: ["embedded", "lora"] reading_time: 20 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Racing to Sleep **[EmbeddedRelated](https://daily.dev/sources/embeddedrelated)** · 20 min read · 0 upvotes · 0 comments ## Summary A detailed walkthrough of low-power embedded system design using a fictional wildlife sensor device (BBB2000) as a case study. Covers building a power/energy budget by accounting for all system components — sensors, camera, motor, LoRa radio, SD card, and MCU. Key findings: radio data transmission dominates energy use (81% of total), not the MCU quiescent current. Explains the 'race to sleep' principle — for computation-bound tasks, running the CPU at full speed finishes work faster, reducing static power overhead and saving total energy. Also covers wake-up costs (PLL lock time, RAM context loss in deep sleep modes), trade-offs between sleep modes, and practical current measurement techniques. Emphasizes making a real power budget rather than guessing, and optimizing the largest energy consumers first. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Low-Power Embedded Design: Are You Optimizing the Wrong Thing?](https://daily.dev/posts/low-power-embedded-design-are-you-optimizing-the-wrong-thing--6mioiwfuu) · Embedded.com · 0 upvotes · 0 comments - [2026 Green Powered Challenge: Adding Low-Power Sleep To Microcontrollers](https://daily.dev/posts/2026-green-powered-challenge-adding-low-power-sleep-to-microcontrollers-apnvocsap) · Hackaday · 2 upvotes · 0 comments - [The Secret Life of Your CPU: Exploring the Low Power Island in Android Bluetooth](https://daily.dev/posts/the-secret-life-of-your-cpu-exploring-the-low-power-island-in-android-bluetooth-xkj5fgva0) · freeCodeCamp · 3 upvotes · 0 comments --- Tags: [#embedded](https://daily.dev/tags/embedded), [#lora](https://daily.dev/tags/lora) [View this post on daily.dev](https://daily.dev/posts/racing-to-sleep-qttnzzadw)