ESP32-C3 based Smart Door/Window sensor | DEEP SLEEP 30nA? | Long battery life 5/10 years
Channel: Salvatore Raccardi
Date: 2023-05-07

This project is sponsored by PCBWay, order your PCBs now for only $5: https://www.pcbway.com/orderonline.aspx

The goal of this project is to design a smart door/window sensor reducing power consumption(in deep sleep/standby) with a custom power latch. Optimizing the deep sleep power consumption of battery-powered smart devices ensures a long battery life cycle.

Github repo: https://github.com/salvatoreraccardi/Smart-DoorWindow-sensor

The current was measured with Nordic's power profiler kit, knowing that the current measured is less than the measurement range of this power profiler. I did several tests to verify the accuracy of the data. In any case the accuracy of the data, the consumption would be less than 200nA and this is a very good result considering that a similar device at a power consumption of 6-8uA.

Do you like the projects I develop? Also visit: https://objexlabs.com/

Interesting projects about the topic:
https://esp8266-server.de/Reedkontakt.html
https://www.youtube.com/watch?v=vxbuO1zWo3w
https://github.com/MakerMeik/Window-Sensor

Topics/projects covered in this video:
Power latch: http://www.mosaic-industries.com/embedded-systems/microcontroller-projects/electronic-circuits/push-button-switch-turn-on/latching-toggle-power-switch
TPL5110: https://www.adafruit.com/product/3435
Magnetic sensor: https://www.ablic.com/en/doc/datasheet/tmr_sensor/S5701_B_E.pdf
Reed switch: https://en.wikipedia.org/wiki/Reed_switch
IoT power consumption: 
https://www.codemotion.com/magazine/ai-ml/machine-learning/optimise-iot-power-consumption/
https://www.thalesgroup.com/en/worldwide-digital-identity-and-security/iot/magazine/its-time-new-approach-iot-power-consumption

Links:
• Shop: https://www.tindie.com/stores/objex/
• Instagram: https://www.instagram.com/salvatore.raccardi
• Linkedin: https://www.linkedin.com/in/salvatore-raccardi-b362aa160/
• Twitter: https://www.twitter.com/salvoraccardi
• Github: https://github.com/salvatoreraccardi

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