How to make a capacitive touch sensor switch out of anything metal using an Arduino

Today I will show you a simple and easy way to turn almost anything that's metal into a capacitive touch sensor switch using only an Arduino and one resistor.

[JoshTaitCreations]

my man went ham on the reverb lol. Good video!

[James-uzse]

Legend has it: he’s still in that cave

[ThierryC]

Wow, 1 pin only and a resistor to make a capacitive sensor!! Genius! I was looking for a simple solution for my rain monitor for months and you showed it to me, great!!

[melchiortod]

Ok but i looove the reverb on the voice! It feels like a dream! Amazing! Thank you for the video, it really helped btw

[serjeelranjan]

I used 1 M ohm resistor. And value jump from 50 to 10, 000 on touching. Perfect thanks.

[MateoTheDev]

Dunno why you sound like a god in the video but thanks for help!

[mr.selfdestruct]

Will this work on nano every? Thanks. Great vid.

[antonio.chetta]

Thank you, I've been looking for this thing for 1 hour and I found your video that helped me

[ianm]

Hi what is the different using arduino or not? I saw other video only us TTP223, some resistor and capacitor
I want to make a 3 step brightnes touch sensor for my bedside led lamp 12v, could it be made without arduino?actually for saving cost only

[johnanderson]

It's case sensitive, capacitiveSensor is different from CapacitiveSensor... But yeah man detecting through 3/4 plywood, plexyglass, etc.. I made some lights for under the bar that's also solar powered, and for the switch I have a sheet of plexyglass with the wire basically taped to the back of it, and no problems.. It gradually increases with brightness because of the PWM controlled mosfet, so the pos actually increases in time as your touching it.. good stuff. +1, a must watch, tnx.
if (val >= 1000)
pos = pos + 1
AnalogWrite(nMOS, pos);
if (pos >= 254){
pos = 0;
delay(1000);
etc. etc. etc. I'm sure u guys get the idea. pretty easy stuff. I'm using 11MMillions of Ω's) of resistance.

[fernandolopes]

I need something like this for an electronic drum

Basically, I need a trigger for when I touch the cymbal, so I can make a logic for the sound to stop (a "choke effect"), but it can't trigger until I actually touch the cymbal

In your video, it also triggers when you get close to it without actually touching it.

Is there a way to disable that, so it only triggers when touched?

[options]

Is it possible to add a potentiometer instead or the resistor across pin 4 and 6

It will really help as I find that temperature and other factors change the sensitivity.

So instead of swapping out resistors a potentiometer might be very helpful

Please help

[subwayz_qt]

You sound like you are giving a class in an empty classroom

[demiurgiac]

As is often the case, I needed a little shove in the right direction. You provided it, thanks.

[printlife]

I have a old server case laying around ima see how well taht works as an antena see how far away it senses, great video.

[giulioambrogi]

if I have an aluminium enclosure (e.g. a guitar pedal) and I solder the wire to the enclosure (acting like your coin), is it safe to be used as a "touch" footswitch?
I'm a noob, any pointer is appreciated.

[TCreatorO]

Out of anything metal?...🤔, make 1 out of a slipknot shirt

[OGsolidsmith]

Informative! I was curious how another youtubers synth project had these cool touch buttons, now I understand. Thank you!

[ianbaxter]

I have a strange bug. I'm wiring this as a touch switch on a synthesiser which uses a logic high (5v) to create a gate which trigger a sounds. My oscillator stays on as long as the gate is high.

I modified the code to be momentary rather than latching - i.e. go high for values > 1000 then low if the value goes below 1000 so the note holds for as long as my finger is on the pad. The circuit works great for me when I'm powered by USB plugged into my laptop (uploading the code) but when I swap to the 5v supply the synth is running on I get regular glitches to 0v so the note stutters. Anyone have any idea what is causing these periodic drops to 0v? I can't work it out.

[frollsshontay]

Great video - just wondering how you would amend the sketch to avoid the use of Delay - and use Millis instead?