This used to show the level of water.

Step 1: Make PCB and Frame

I used acrelic and universal PCB, and painting with black doff pylox.

Step 2: Skematik

Using this skematic, and how its work, look at the picture

Step 3: Build Your Project

Build your project, as show in Schematic.

Step 4: Calibration

Tested and calibration

Step 5: Finish

Ready mounted on Wall

Step 6: Complete Source and Project

Download this Full Project

<p>There is a very low cost ultrasonic sensor (around USD $7.00) <a href="http://s.click.aliexpress.com/e/NniUBA2" rel="nofollow">http://s.click.aliexpress.com/e/NniUBA2</a> . It's waterproof and electronics board is away from the liquid</p>

About This Instructable




More by rokhmad1080:DIY PCB Arduino Kitchen Timer With LCD 16 X2  SMS System Alarm Using Sim 800L, Motion Detector and Atmega 328 Ultrasonic BIG LED Water Level Indicator 
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