Make Your Own Automatic Sanitizer Dispenser (No Programming Needed!)

Hello guys, Welcome to Robocraze! In this video, we will show you how to make an automatic hand sanitiser dispenser without programming. You can create a touch-free dispenser with some basic materials and a little time for easy hand cleaning. we will go through the materials and step-by-step process, with helpful tips for efficiency. It's a fun and practical DIY project that anyone can do, so join us and take the first step towards a healthier, germ-free lifestyle. Watch until the end for all the details.

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Due to the variations in the types of relays and sensors available, you might find that the system responds in a manner that is opposite to what is desire. For example, if the motor stops when you place your hand and starts when you remove it, it probably means that either the proximity sensor is active low instead of high, or the relay is trigger low instead of high. For either of these scenarios, the fix is simple. Just swap the usage of NC and NO pins. So if you are using NO pin as instructed by the video, move it to the NC pin and vice versa. The COM pin must remain unchanged.

If the motor does not stop regardless of whether a hand is present in front of the sensor or not, check the calibration of the proximity sensor potentiometer. Ensure that the output of the proximity sensor changes when a hand is brought near it and taken away and that the relay switches on giving high and low input. Malfunction of any of these two components may result in the motor either not starting up or not stopping.

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Chapters
0:00 Intro
0:33 Components required
1:09 Getting started
7:19 Working
8:47 Outro


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