Contact Sensor 3 - an ESP8266 Door & Window Sensor

Published: 07 February 2022
on channel: MrDIY

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An overview video of version 3 of my contact sensor.
Get 10 PCBs for $5 USD at https://www.pcbway.com
Buy the Contact Sensor - https://store.mrdiy.ca/p/wireless-con...

Source code and schematics - https://gitlab.com/MrDIYca/ultra-low-...

This door and window sensor is built using an ESP8266, ATtiny13a, LDO and a Lithium battery charge controller.

Shopping for the battery charger IC?
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■ Amazon - https://geni.us/p6E6
■ AliExpress - https://s.click.aliexpress.com/e/_AmZsJT

My Contact Sensor System Playlist - • My Ultra Low Power Sensors System

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