The $5 Automatic Alcohol Dispenser
by Kurt Bautista in Workshop > 3D Printing
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The $5 Automatic Alcohol Dispenser
![Copy of DIY AUTOMATIC ALCOHOL DISPENSER 2 (2).png](/proxy/?url=https://content.instructables.com/F0O/IMBI/KHT4RNAR/F0OIMBIKHT4RNAR.png&filename=Copy of DIY AUTOMATIC ALCOHOL DISPENSER 2 (2).png)
So with quarantine being lifted off my country I noticed alcohol dispensers in an attempt to stop the spread of the virus but these alcohol dispensers required to be touched making it a possible route for being infected with the virus. I made this automatic alcohol dispenser to stop that possibility. This low cost 5$ dispenser is beginner friendly to make by not requiring any programming skills and arduino.
THE VIDEO
![DIY AUTOMATIC ALCOHOL DISPENSER (LOW COST 5$ NO ARDUINO)](/proxy/?url=https://content.instructables.com/FRU/SQXF/KHT4RMTE/FRUSQXFKHT4RMTE.jpg&filename=DIY AUTOMATIC ALCOHOL DISPENSER (LOW COST 5$ NO ARDUINO))
Watch this to see it in action.
Don't forget to Subscribe!
Parts and Materials
![PARTS 1.png](/proxy/?url=https://content.instructables.com/FAW/Y1KE/KHT4TL8L/FAWY1KEKHT4TL8L.png&filename=PARTS 1.png)
![PARTS 3.png](/proxy/?url=https://content.instructables.com/FSN/U8RS/KHT4TL8N/FSNU8RSKHT4TL8N.png&filename=PARTS 3.png)
![PARTS 5.png](/proxy/?url=https://content.instructables.com/F8C/JBZN/KHT4TLI6/F8CJBZNKHT4TLI6.png&filename=PARTS 5.png)
![PARTS 2.png](/proxy/?url=https://content.instructables.com/FR1/RB4V/KHT4TL8M/FR1RB4VKHT4TL8M.png&filename=PARTS 2.png)
![PARTS 6.png](/proxy/?url=https://content.instructables.com/FA0/SAIR/KHT4TLJ1/FA0SAIRKHT4TLJ1.png&filename=PARTS 6.png)
Here are the parts were gonna need
Dc pump x 1
PVC tube x 1
Adjustable Spray Nozzle x 1
TIP32C Transistor x 1
IR Proximity sensor module x 1
Micro USB breakout board x 1
1N4002-4007 Rectifier Diode x 1
100R 1/4W Resistor x 1
Mini Breadboard x 1
Prototyping board x 1
Project enclosure (like a mason jar)
Prepare the Enclosure
![PARTS 4 mason jar.png](/proxy/?url=https://content.instructables.com/FDU/S8WZ/KHT4TLI5/FDUS8WZKHT4TLI5.png&filename=PARTS 4 mason jar.png)
I reused an old coffee container for our project
Cutting the Prototype Board
![proto 1.png](/proxy/?url=https://content.instructables.com/FH5/SJ2K/KHT4TLM2/FH5SJ2KKHT4TLM2.png&filename=proto 1.png)
![proto 2.png](/proxy/?url=https://content.instructables.com/FO3/8W46/KHT4TLM3/FO38W46KHT4TLM3.png&filename=proto 2.png)
Our prototyping board is too large for our project to save some for future projects lets cut it down to a smaller size
The Cap
![cap 1.png](/proxy/?url=https://content.instructables.com/F6C/0AVG/KHT4TLUU/F6C0AVGKHT4TLUU.png&filename=cap 1.png)
![cap 2.png](/proxy/?url=https://content.instructables.com/F7N/KZ3X/KHT4TLUY/F7NKZ3XKHT4TLUY.png&filename=cap 2.png)
![cap 3.png](/proxy/?url=https://content.instructables.com/FJS/BFND/KHT4TLUZ/FJSBFNDKHT4TLUZ.png&filename=cap 3.png)
Get the cap of your enclosure and make holes for the pvc tube and motor wires to go. You can secure them with hot glue.
The Circuit
![PUMP_DIAG_MINI.png](/proxy/?url=https://content.instructables.com/FPD/X30X/KHT4TF6U/FPDX30XKHT4TF6U.png&filename=PUMP_DIAG_MINI.png)
Follow the diagram above for the wiring of our parts.
Wire It All Up
![circuit 3.png](/proxy/?url=https://content.instructables.com/F8C/EI9X/KHT4TMIJ/F8CEI9XKHT4TMIJ.png&filename=circuit 3.png)
![circuit 2.png](/proxy/?url=https://content.instructables.com/F0B/DDJ0/KHT4TMIK/F0BDDJ0KHT4TMIK.png&filename=circuit 2.png)
![circuit 1.png](/proxy/?url=https://content.instructables.com/FSG/OQ4A/KHT4TMIN/FSGOQ4AKHT4TMIN.png&filename=circuit 1.png)
Once you finished wiring up the circuit it should look like this.
(OPTIONAL) 3d Print an Enclosure
![glue 3.png](/proxy/?url=https://content.instructables.com/F54/JWZF/KHT4TMKB/F54JWZFKHT4TMKB.png&filename=glue 3.png)
![glue 2.png](/proxy/?url=https://content.instructables.com/FLK/REVZ/KHT4TMK9/FLKREVZKHT4TMK9.png&filename=glue 2.png)
To make the project look better I 3d printed an enclosure for the electronics. This step is completely optional this is just for aesthetics
Downloads
Finished
![spray 1.png](/proxy/?url=https://content.instructables.com/F77/29GV/KHT4TMMW/F7729GVKHT4TMMW.png&filename=spray 1.png)
Congratulations you just made your very own low cost alcohol dispenser!
To use it just plug the micro-usb cable at the back and put your hand in front of the sensor.
If you liked this project vote for me down below thanks :)