Circuit diagram : bit.ly/2yvt4u8

tested over and over. this works perfectly, thank you.

@ElectroRetro

Жыл бұрын

👍

esse pir e muito legal gostei ja fiz 4 sensor de presenca e´10

where did you plug the 12V input LED wire

Thanks good video. Could I hook this up to a 12v horn for an alarm instead of the light ? Would I need anything bigger like the diode or transistor ?

@ElectroRetro

3 жыл бұрын

Yes you can, Input voltage for pir is +5V for typical applications. Can range from 4.5V- 12V

@richard8241

3 жыл бұрын

@@ElectroRetro Thank you ! Subscribed ! ;)

Hello. This worked great for the LED strip on the stairs. I've had someone message me so they can do the same so thanks for the video and responses. Currently I use a smart plug to tell the strip to only come on at night but if you were to add a light sensor and get rid of the smart plug, how would you wire it?

@ElectroRetro

2 жыл бұрын

If you open that white cover on PIR sensor you can see a connection point marked RL, You can solder a LDR (Light Dependent Resistor) on that to sense motion only at night time.

@smash461986

2 жыл бұрын

@@ElectroRetro Wow it's that easy!? Very helpful thank you.

@ElectroRetro

2 жыл бұрын

👍🏼

Nice work👏

@ElectroRetro

4 жыл бұрын

Thanks for watching

I have relay modules instead of the stand alone relay. Can I make this work?

@ElectroRetro

3 жыл бұрын

Yes

Is it safe to use the diode and bc547 with ordinary 220 volt ? Please answer quickly I am doing it right now

@ElectroRetro

2 жыл бұрын

Bc547 and pir sensor must be powered with 5v. You can connect 220v to the relay contact pins.

Hi...Electro Retro .. really great work 👏👏 can I have circuit with out any relay ..I need simple Hi 9v battery with 4 led PCB design PDF. Ready to itch

@ElectroRetro

2 жыл бұрын

You can simply replace the diode and relay with leds

Any way you can show a picture of the whole system, in the video i cant see where the wire are going on the table, battery source

Im trying to connect a 5V DC motor instead of the relay,

@ElectroRetro

4 жыл бұрын

Yes you can connect it

Can you show a circuit diagram with the led on it. I dont know how to make circuit diagram

@ElectroRetro

3 жыл бұрын

Just replace relay with a led. And make sure to add a resistor

Can this be used for a 5v led strip?

@ElectroRetro

2 жыл бұрын

Yes

It's cool, but what is the light for if this light comes on in daylight? Could you figure light to comes on after dusk ?

@ElectroRetro

2 жыл бұрын

If you open that white cover on PIR sensor you can see a connection point marked RL, You can solder a LDR (Light Dependent Resistor) on that to sense motion only at night time.

@FlightSim2703

2 жыл бұрын

@@ElectroRetro awesome, will you sometime load a video, for how you do it , thanks 🥰♥️👍👍👍

@ElectroRetro

2 жыл бұрын

Yeah.

hello sir did u connect the brown and the red wire to another battery of 5 volts

@ElectroRetro

2 жыл бұрын

Yes

@ashutoshkhire3604

2 жыл бұрын

thank u sir for the very quick reply i will go for it

@ashutoshkhire3604

2 жыл бұрын

@@ElectroRetro and by the way we need to use npn type bc 547 transistor right

@ElectroRetro

2 жыл бұрын

Yes, use npn transistor.

Red brown wire kis chiz ke hai please reply

@ElectroRetro

4 жыл бұрын

Red is positive 5v and brown is negative

This is perfect but i want to use 12v for both pir and led what needs to be changed

@ElectroRetro

4 жыл бұрын

Use 12v relay

@naveendsouza2137

4 жыл бұрын

What about the transistor and diode value? Will it be the same... Thank you for the quick reply. Im not from electronic background so can you please tell me

@ElectroRetro

4 жыл бұрын

Same

@ersomesher

26 күн бұрын

How to connect a 12V LED strip light directly to the sensor without using any resistor or transistor or a relay. The LED strip light will be powered by 12V 5A driver. The setup will be mounted underneath the kitchen platform. The LED strip light should turn ON when the drawer is opened.

@ElectroRetro

26 күн бұрын

Without transistor or relay not possible.

Hello. I'm using a 12v led with 12v relay. How do I attach the positive and negative 12v to both the led strip and pir sensor? Thanks

@ElectroRetro

2 жыл бұрын

Connect supply's positive pin to the relay's common pin and connect led's positive to relay's NO (normally open) pin.

@smash461986

2 жыл бұрын

@@ElectroRetro thanks for the rapid response. I shall give it a go.

@smash461986

2 жыл бұрын

Hello I'm not getting anything from the led strip. It's only 3 leds but is a 1a supply too low? The relay is rated at 10a. Does the negative of the 12v supply go to gnd on the PIR? I'm basically trying to do your setup but without an additional 5v for the PIR but it's throwing me off completely.

@ElectroRetro

2 жыл бұрын

Negative and positive must be connected to the PIR sensor.

@smash461986

2 жыл бұрын

@@ElectroRetro hello. Brilliant there is life. There's a clicksound when the motion detector activates. I think it's the relay. Is this normal? Thanks for the help so far BTW, I was ready to give up.

Hi brother I want to use pir to control my magnetic door lock... Will the same circuit work where the bulb is replaced with the magnetic door lock

@ElectroRetro

3 жыл бұрын

Everything is same just replace bulb with lock

@racelikepro

3 жыл бұрын

@@ElectroRetro thanks for the response will do n share my feedback

there is no compulsion like where we need to connect the anode and the cathode of the 1n4007 diode to the relay right ???????????

@ElectroRetro

2 жыл бұрын

Diode cathode should be connected to positive.

@ashutoshkhire3604

2 жыл бұрын

@@ElectroRetro ok thanx and u didn't need to adjust the distance and time did u ?

@ElectroRetro

2 жыл бұрын

You can adjust delay and distance according to your application

@ashutoshkhire3604

2 жыл бұрын

@@ElectroRetro ok thanx

Can I use this circuit in direct sunlight. Will it work or it gives an malfunction…???

@ElectroRetro

4 жыл бұрын

Maybe it Will work but sometimes have a false trigger

Nice. Just two questions: 1) Can I use 12V LED strip 5 meter or long? 2) I want to use two PIR sensor for my automatic stair case light.So how to do that?

@ElectroRetro

3 жыл бұрын

Yes, you can use

@leon9357

3 жыл бұрын

@@ElectroRetro Thank you. But how to use two PIR Sensors for the stair?

@ElectroRetro

3 жыл бұрын

Connect two pir sensors in parallel. Vcc to vcc, signal to signal, gnd to gnd.

@leon9357

3 жыл бұрын

@@ElectroRetro Thanks.

Can I feed the sensor with 5v and the LED (5v) also with 5v?

@ElectroRetro

Жыл бұрын

Yes

While the motion detected, relay on multiple times ...giving a continous sound and the light is on ....can give suggestion for thz trouble shoot

@ElectroRetro

2 жыл бұрын

Check the voltage on relay coil pins.

@diane1993

2 жыл бұрын

The voltage fluctuates

@ElectroRetro

2 жыл бұрын

Most likely that's the problem. Check your power supply and connections.

Can i use this for tubelight?

@ElectroRetro

3 жыл бұрын

Yes

@ArbazKhan-bg2sb

3 жыл бұрын

@@ElectroRetro hi, if i want to keep the light always on then can i add an on/off switch as well?

@ElectroRetro

3 жыл бұрын

You can use a two way switch.

what type of glue u use

@ElectroRetro

3 жыл бұрын

I didn't use glue in this video

Hi, nice project, can we use more pir sensors with same circuit (for different angles scan)

@ElectroRetro

2 жыл бұрын

Yes, use diode on output pin.

@survivor351

2 жыл бұрын

@@ElectroRetro thanks, did i understand right? Vcc and ground pins same connect to 5v input, outputs to diodes on pin, not use another bc547

@ElectroRetro

2 жыл бұрын

Example:- drive.google.com/file/d/1fASavSSkePmwn7HxRfWk1D5bIP_22512/view?usp=drivesdk

@ElectroRetro

2 жыл бұрын

Everything is same just add diodes on output pins.

@survivor351

2 жыл бұрын

@@ElectroRetro thank u so much

Sir how should I increase ontime

@ElectroRetro

3 жыл бұрын

Adjust left potentiometer clockwise to increase delay.

Is the transistor PNP or NPN?

@ElectroRetro

3 жыл бұрын

Npn

Can we use multiple pir sensors in parallel?

@ElectroRetro

4 жыл бұрын

Yes you can use

@konkani8978

4 жыл бұрын

Thanks sir 👍

How about IR sensor

Can i do this without the relay?

@ElectroRetro

3 жыл бұрын

Yes

can i use 547 to 548 bc

@ElectroRetro

3 жыл бұрын

Yes

can I use 12v Relay

@ElectroRetro

4 жыл бұрын

Yes

Can i use BC548

@ElectroRetro

4 жыл бұрын

Yes you can

@dhirajmishra6583

4 жыл бұрын

@@ElectroRetro thanks sir

@mirzasikenderzaib1285

4 жыл бұрын

Sir can we use without transistor

can i use 12v DC?

@ElectroRetro

3 жыл бұрын

Use 12v relay

@aldemjohne.salvadora8785

3 жыл бұрын

@@ElectroRetro what if a 9v DV BATTERY?

@ElectroRetro

3 жыл бұрын

Use 9v relay

sir, I did everything as per this video. but my bulb is always turned ON. I checked my PIR and the voltage is coming properly, my relay is in proper connection (NO)... what are the possible problems?

@ElectroRetro

4 жыл бұрын

Adjust you pir sensor delay to minimum.

@SanjeevKumar-dx8gt

4 жыл бұрын

@@ElectroRetro I kept it brother but still it is the same issue.

@ElectroRetro

4 жыл бұрын

You need to check if the voltage on the PIR output switches. Use a multimeter to measure the voltage between OUT and GND.

@SanjeevKumar-dx8gt

4 жыл бұрын

@@ElectroRetro I did and did not change at all. means it remained the same value.. Should i need to change PIR and check again? also, NPN or PNP version matters?

@ElectroRetro

3 жыл бұрын

Change your pir, make sure you are using npn transistor.

New subscriber here

@ElectroRetro

3 жыл бұрын

Thank you so much.

@Martin-dw4eo

Жыл бұрын

Me too. I just subscribed.

I follow the connection . Why is it. Turning on and off without sensing the sensor?

@jeremiahlaman2010

2 жыл бұрын

Please help

@ElectroRetro

2 жыл бұрын

When the PIR sensor turned on, it will automatically turn on and turn off after 30 sec.

Bro ethumari nan bathroomle set pnnina bro anal nan niddu pattan off avuthu bro nan asajja on avuthu asayaddi off avuthu bro

@ElectroRetro

3 жыл бұрын

Can you pls tell me in English

How to add LDR to this circuit ?

@ElectroRetro

Жыл бұрын

If you open that white cover on PIR sensor you can see a connection point marked RL, You can solder a LDR (Light Dependent Resistor) on that to sense motion only at night time.

@rithminipehansa3562

Жыл бұрын

@@ElectroRetro thank you ✨️💜️

Komponen belinya dmn toko apa bos

@ElectroRetro

4 жыл бұрын

?

Sir, my pir sensor always stays on. What is the problem.

@ElectroRetro

3 жыл бұрын

May be your sensor is faulty

Range?

@ElectroRetro

4 жыл бұрын

Upto 7meter

What will happen if we don't use transistors

@ElectroRetro

4 жыл бұрын

It won't work

can12 v input

@ElectroRetro

Жыл бұрын

5v is recommended

Sorry im late

@ElectroRetro

4 жыл бұрын

Thanks for watching

can i add 2 motors so that i can make a robot

@ElectroRetro

3 жыл бұрын

Yes

@amnafatima163

3 жыл бұрын

@@ElectroRetro and do you have any guidelines for making it

@ElectroRetro

3 жыл бұрын

If you are trying to turn on two motors using one pir sensor. Just connect two motors in parallel

@amnafatima163

3 жыл бұрын

@@ElectroRetro okay

🤓

How to connect a 12V LED strip light directly to the sensor without using any resistor or transistor or a relay. The LED strip light will be powered by 12V 5A driver. The setup will be mounted underneath the kitchen platform. The LED strip light should turn ON when the drawer is opened. Why are transistor and resistor mandatory? What would happen if remove them and connect LED strip light directly? Reposting as I can't find my previous same comment.

@ElectroRetro

26 күн бұрын

Can't connect 12v load directly to pir sensor. You need a relay or mosfet.

@ersomesher

26 күн бұрын

@@ElectroRetro What would happen if neither of these are used and the strip light is directly connected. Will the light get damaged or the sensor? Or nothing will be damaged and the LED won't glow?

@ElectroRetro

26 күн бұрын

@ersomesher There is a good chance for sensor damage.

@ersomesher

26 күн бұрын

@@ElectroRetro Thanks for responding. If you have spare sensor and some time, request your kind hello to try that configuration and confirm if it's working or not. I don't have spares, hence the request. Thanks.

@ElectroRetro

26 күн бұрын

As I said earlier it's not possible to directly connect 12v load to pir sensor.

What kind of wire is used?

@ElectroRetro

2 жыл бұрын

Hookup wire

Can i use 12v relay?

@ElectroRetro

3 жыл бұрын

Yes