https://stream.echo6.co/videos/watch/f8ed3680-24ed-4081-9ce7-de9dfe726179 Check out the Prusa 3D Printer here: https://prusa.io/greatscottlab/mk3s Printables for the 3D Models: https://prusa.io/greatscottlab/printables Free Altium Designer Trial: https://altium.com/yt/greatscott! (AD, Paid Promotion) 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/ Facebook: https://www.facebook.com/greatscottlab Twitter: https://twitter.com/GreatScottLab Instagram: https://www.instagram.com/great.scott.lab/ Support me for more videos: https://www.patreon.com/GreatScott?ty=h 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 Wed, 15 Apr 2026 09:27:59 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/f8ed3680-24ed-4081-9ce7-de9dfe726179 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.