Microcontrollers are the backbone of countless battery-powered devices, and maximizing their energy efficiency is crucial for long-term operation. In this tutorial, we use a thermal camera to visualize how microcontrollers behave thermally as they transition between deep sleep and active modes. By comparing the PTSolns Nano Flip (ATmega328P) and the PTSolns ESP32 microWatt, we reveal why the ESP32 microWatt is a well-suited choice for low-power applications.
Glad I found this! It’s helpful for my current project. I’m building a battery-powered sensor node that spends most of its time in deep sleep, so I’m trying to get a handle on how temperature and active/sleep cycling affect power draw.
That’s great. Happy to hear! Since you are doing a battery powered application, you might be doing an energy budget calculation. You might be interested in another blog we wrote recently for which we measured the current draw of a similar BMP280 sensor module. We also wrote a custom library for this module to reduce current draw as much as possible. That’s outlined in the blog as well
