Every Shower needs this Upgrade! (Online Water Tracker)

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Previous video: https://youtu.be/LyztbYNB0Eg
Latch Circuit video: https://youtu.be/y1ROEogHF7A
HomeAssistant video: https://youtu.be/IvI1RqYPO24

Project information on Instructables: https://www.instructables.com/Online-Water-Tracker-Reduce-Shower-Time/
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Parts list (affiliate links):
Aliexpress:
TP4056 Battery Charge & Protect: https://s.click.aliexpress.com/e/_Dd7XXD9
LiPo Battery: https://s.click.aliexpress.com/e/_DlZ9Ign
Boost Converter: https://s.click.aliexpress.com/e/_DlhhkBd
EPS8266: https://s.click.aliexpress.com/e/_DEQC023
P-Channel MOSFET: https://s.click.aliexpress.com/e/_DeTu9zV
Water Flow Sensor: https://s.click.aliexpress.com/e/_DD7Vsvv
Water Switch: https://s.click.aliexpress.com/e/_DnoC8VD
LED: https://s.click.aliexpress.com/e/_Dmq3et1
Resistors: https://s.click.aliexpress.com/e/_DkVtJQX
Amazon.com:
TP4056 Battery Charge & Protect: https://amzn.to/3JRzrss
LiPo Battery: https://amzn.to/3dsdJz1
Boost Converter: https://amzn.to/3SRI7TC
EPS8266: https://amzn.to/3pgMzhl
P-Channel MOSFET: -
Water Flow Sensor: https://amzn.to/3AlO97L
Water Switch: https://amzn.to/3PmHM8z
LED: https://amzn.to/3QraeYa
Resistors: https://amzn.to/3AlnkR6

The goal of this project was to lower my shower time since I am spending way too much water/money there. And what better way than to see how expensive each shower is? That is why I built an online water tracker that not only tells me how much waster I am using, but also what it costs. Let's get started!

Websites which were shown/used in the video:
https://datasheetspdf.com/pdf-file/1315641/Alpha&OmegaSemiconductors/AO4447A/1
https://github.com/kalkih/mini-graph-card/#grouping-by-date

Thanks to Prusa Research for sponsoring this video.

0:00 My Plan to Reduce Shower Time
1:19 Intro
1:33 The Water Flow Sensor
2:45 Arduino Prototype (for the Sensor)
4:20 Powering the Electronics in the Shower?
5:54 Final Arduino Prototype (Liter/Cost/Battery)
6:32 Building the WiFi uC System
7:22 Water Resistant Enclosure
8:50 Final Assembly
9:18 Home Assistant Programming
10:14 Final Test & Verdict