Auto Sanitizer Dispenser and Tap Water Control

Описание к видео Auto Sanitizer Dispenser and Tap Water Control

A very simple , effective cheap cost circuit is here for automatic Sanitizer dispenser or for auto tap water control.Circuit is built on opto coupler PC817 and NPN transistor BD139.
No Microcontroller used.
https://alselectro.wordpress.com/2020...

Advanced model using microcontroller is here :
   • AUTO SANITIZER ADVANCED KIT  

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