How to Make a "Touch Sensor" Using 555 Timer IC on Breadboard.

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Introduction: How to Make a "Touch Sensor" Using 555 Timer IC on Breadboard.

About: Hi. I'm Troy Araujo and welcome to my page. I upload content related to simple electronic projects, home made things, DIY tutorials, breadboard circuits, life hacks and much more. My YouTube channel name is...

A touch sensor is a type of equipment that captures and records physical touch or embrace on a device and/or object. It enables a device or object to detech touch, typically by a human user or operator. A touch sensor may also be called a touch detector.

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Step 1: Components Required:-

Components Required:- 555 Timer IC , Breadboard , 9v battery with holder , 2 wires, 2 L.E.D's and 4 pins as 'Touch Plates'

Step 2: Steps of Construction:-

STEPS OF CONSTRUCTION:-

The 555 Timer IC has 8 Pins.

1. Connect 2 pins from pin 1 & pin 2 of IC as the 1st touch plate and connect 2 pins from pin 6 & pin 8 of IC as the 2nd touch plate.

2. Then connect a wire which goes from the negative side of the battery to pin 1 of IC.

3. Then connect another wire which goes from the positive side of the battery to pin 8 of IC.

4. Now connect the cathode(negative) side of the L.E.D to the 3rd pin of IC and the anode (positive) side of the L.E.D to the positive side of the battery.

5. Now connect the anode (positive) side of another L.E.D to the 3rd pin of IC and the cathode (negative) side of the L.E.D to the negative side of the battery.

You can even connect a buzzer in place of one L.E.D to have a different effect.??

Step 3: Testing the Touch Sensor

Once you connect the battery then touch on the 'Touch Plates' to see the L.E.D's changing.

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Step 4:

1 Person Made This Project!

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17 Discussions

0
SriR58
SriR58

Question 2 months ago

Sir please send me the circuit diagram working principle of touch sensor using 555 timer IC 330 ohm resistance 2 LED 9V battery and connecting wires on the bread board

0
bujjialla626
bujjialla626

4 months ago

sir. applications and advantage and diadvantages send me sir please topic is touch sensor u using ic 555

1
DiptiK6
DiptiK6

8 months ago

Sir send me the circut diagram

0
Potato37
Potato37

Question 11 months ago on Step 3

how can this circuit be altered so it will toggle one LED on and off?

0
Kat.L.Hamill
Kat.L.Hamill

1 year ago

I tried this activity and the LED's kept overheating and one of the IC's started smoking! Any ideas why? It was hooked up exactly as show in the instructions. did this with 7 students and 5/7 of them had the same issues. Red, yellow and white LEDs were used and the colour didnt affect it.

0
mahiboob
mahiboob

Question 2 years ago on Step 3

555 timer operaating which made either astable or bistable?
can you explain how the timer will work in touch platw

0
prasadbu33
prasadbu33

Question 2 years ago on Step 2

if we forget to touch another side, will it be glow that light forever or is there any down time for 555 timer ic. Please ans me quickly sir...

0
Muskan sultana
Muskan sultana

2 years ago

Plsss send me circuit diagram in muskansultana1998@gmail.com

0
utkarshk18
utkarshk18

2 years ago

Ples give digram in utkarsh763129295095702264650@gmail.com

0
ashish143143
ashish143143

3 years ago

plz send m circuit diagram on.......ashish.eep.inst@gmail.com

0
joietjose
joietjose

3 years ago

please provide circuit diagram

0
JRV31
JRV31

3 years ago

I am going to try this, I like 555s.