Raspberry Pi Pico Lecture 36 (2025): Power management in IoT systems

0:00 - Plan for today’s lecture 1:50 - What does power management involve? 4:10 - Polling vs. sleep/wake cycles 8:45 - Achieving a low power mode 9:10 - Looking through some datasheets 17:20 - Waking up from a low power mode 22:45 - A latching circuit 26:40 - Getting back to sleep as quickly as possible 30:15 - DMA, fixed point, and other speed optimizations 31:30 - RP2040 power control (sleep and dormant modes) 38:55 - Maximum power point tracking 42:20 - Looking for energy 47:30 - Avoiding the temptation to over engineer Spring, 2025 lectures from ECE 4760 (Digital Systems Design Using Microcontroller) at Cornell University. Course site: https://ece4760.github.io Hunter’s site: https://vanhunteradams.com