WSMS#3 - Optimize Power Consumption of ESPHome Wireless Sensors
Published at : 23 Dec 2025
In today's episode, we're diving into optimizing the power consumption of our setup. We'll take a closer look at the INA3221 sensor and adapt it to suit our needs. By the end of this video, our 1100mAh battery will last 10 times longer! Don't miss out on these crucial steps to making your project more efficient and long-lasting.
00:00 Overview 00:29 Ideas to reduce power consumption 02:06 Measuring power consumption 02:54 INA 3221 - Electrical characteristics 03:58 INA 3221 - Shunt offset error 04:59 INA 3221 - How to optimizing measuring range 06:01 INA 3221 - Why optimizing measuring range 07:25 Setup for measuring energy consumption 08:33 Grafana - Analyse measurements 10:23 Switching off the sensor during deep sleep 11:42 Grafana - calculate power consumtion in Ah 14:36 Operation time when switching off the sensor during deep sleep 15:07 Increase update interval 15:41 Conclusion