Smart faucet on Arduino (filter resource counter) by Ruvimkub

Last crawled date: 3 years ago

Smart faucet for filtered water. It often happens that we start filling up the kettle and forget about it. When we remember, the water is already falling down from the ceiling of our neighbor below.
To prevent this from happening I created a system on an Arduino which has a water meter and a solenoid valve. With such a system you can connect up to two filters. I have a drinking water filter and a reverse osmosis filter.
The system is able to count the remaining life of your filter and you will know exactly when you need to replace the filter.
We also have 4 buttons. Kettle, Glass and Finger buttons refer to the drinking filter and the button Jug is for the reverse osmosis filter. With these buttons you can quickly choose desired amount of water. Each one of this presets can be adjusted in the menu.
The water meter has a calibration function, storing data into non-volatile memory and mutable buzzer. It is also possible to set the volume of water to be filled for each button.


By pressing the "Finger" and then pressing the "Encoder" we can rotate the encoder and set any amount of water we want in increments of 50 milliliters.
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Connection diagram


Links to materials:
Touch Buttons
Arduino pro mini 5V 16MHZ
Programmer
Power Supply 5V 2.5A
Counter
MOSFET
Screen
Solenoid valve
Encoder
DC-DC step-up module
Beeper
Black hot melt
Wires
Terminal kit XH2.54
HER105 diodes
Covers
Fittings 1/4

Links to used tools:
TWO TREES TOTEM S 40W Laser - Promotion Code (BG2RUV), $259.99
Crimping pliers XH2.54 SM needed (SN01BM)
Metal brush
Caliper
Medical clamp
Layout board
Glue gun
Tweezers set
Infrared thermometer
Side cutters
Heat shrink dryer
Tightening tool for ties
Bit with a magnet
Self-extinguishing plastic for the enclosure


Thank you for every review and donation, It motivates and helps to implement new projects!


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