Home Tech Raspberry Pi mechanically refills your water bottle

Raspberry Pi mechanically refills your water bottle


YouTuber Chris Courses takes hydration significantly, however all the ones mins spent filling up water bottles take a toll. 15 hours according to yr, to be precise. Chris steadily makes use of 3 otherwise sized water bottles and sought after to construct one thing to fill all of them to their precise measurements.

(Well mannered readers might love to be warned of a few bleeped swears and a impolite whiteboard drawing a couple of mins into this video.)


  • Raspberry Pi
  • Water filter out (Chris makes use of this one, which you’d to find in a refrigerator with a integrated water dispenser)
  • Solenoid valve (which handiest opens when {an electrical} sign is shipped to it)

How does the {hardware} paintings?

The solenoid valve determines when water can and can not go thru. Mains water is available in thru one tube and passes in the course of the water filter out, then the solenoid valve releases water by way of some other tube into the bottle.

Diagram of the water bottle filler setup, hand-drawn by the maker
See – simples!

What does the Raspberry Pi do?

The Raspberry Pi sends a sign to the solenoid valve telling it to open for a selected period of time — the duration of time it takes to fill a selected water bottle — and to near when that point expires. Chris set this as much as get started operating when he clicks a bodily button.

Chris additionally programmed lighting to suggest when the dispenser is became on. This handbook coding proved to be probably the most time-consuming a part of the venture.

However the entire wires glance so unpleasant!

Water dispenser mounted onto side of fridge
Swish and discreet

Chris agreed, so he Three-D-printed a gorgeous enclosure to deal with what he dubs the ‘Hydrobot 5000’. It’s a swish black casing that sits beautiful in his kitchen on a wall subsequent to the refrigerator. It took a good bit of refrigerator shuffling and electric mounting to “take a seat beautiful”, alternatively. This Raspberry Pi-powered introduction had to be hooked up to a water supply, so the tubing needed to be snaked from Hydrobot 5000, in the back of home equipment, to the kitchen sink.

Take a look at the ones disco lighting! Great paintings, Chris. Apply Chris on YouTube for quite a bit extra coding and dev movies.

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