How to Make a Better Hand Sanitizer with Arduino! LOWER POWER

Опубликовано: 14 Май 2026
на канале: Kevin Darrah

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This was a fun project to improve a super cheap soap dispenser to be used with hand sanitizer and significantly increase battery life! Full project detailed out here with hardware explanations and code walkthrough - everything linked to below:

Soap Dispenser used: https://www.amazon.com/dp/B08CXTCLJQ/...

Hand Sanitizer: https://www.bedbathandbeyond.com/stor...

*UPDATE* Had a minor change in the drawing!
CODE IS HERE and Diagrams: https://github.com/krdarrah/handsanit...

That cool :) 328 board is here: https://www.tindie.com/products/14948/

and if adding IoT to this project, trigBoard would be perfect - I might do this if a good use case comes up: https://www.tindie.com/products/kdcir...

Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
/ kdarrah

Twitter: / kdcircuits

For inquiries or design services:
https://www.kdcircuits.com