The typical way to wire the pot is.. Pin 1- jump wire from pin 1 to the chaise in order to ground out the pin. This ensures that the voltage/signal gets completely shut off when you turn the knob all the way down. Yes, you can skip this pin for simple applications like this if you really want. Pin 2- Input voltage. The resistor limits current flow to the input. Without the resistor the LED will blow out. Pin 3- Output voltage The way you wired it up works fine but normally people like to turn the knob clockwise to increase the voltage, and not counterclockwise.
Everywhere else they say the second, middle, pin of the potentiometer is the output. Why not explain what the three pins are? You ignored one pin. Not very helpful. Sorry.
Whatever side you pick on the potentiometer the first two pins are for the + - wires and 3rd wire is ground depending on wiring. not the same in every case. maybe that's why he didnt mention it.
If you want to connect a fan with a potentiometer this doesn't help. Just saying, for the ones like me. You will need to connect the first 1st and the middle with + of your power supply and the 3rd with your fan's red wire(of yellow if you don't have a red) and then connect the fan's black wire with the power supply ground
This doesn't help me at all right now I need to bypass a PCB board and wire a fan directly to the POT so I guess I need to know if it has polarity or not and then the other 2 control direction and can be wired either way is this right? Do you really need another resister after the pot isn't the pot also a resister or does an LED always need a resister no matter what? Would I need something in between the potentiometer and a fan? I have a rework station and for some reason, I have lost fan control I even installed a new potentiometer with no effect so I simply want to bypass the PCB and wire the fan directly to the POT but I don't know what pin does what.
+Joseph Ho It also does not prevent the circuit from reaching above any specific current. However, it will start to burn if it's operating above it's rated current.
+Dennis Augustine Well... Increasing the resistance will lower the voltage once passing through a load if there is another resistive path to ground. So if both pins connect to different potentials, it will indeed control the voltage. In the case here, he has 0v on one pin, and, im assuming 5v on the other, so the ouput will be between 0v and 5v, and is not functioning as an individual resistor, but as two of them, which is a voltage divider. This is how they work, 'I' means input, '0' is output sliding on resistance wire, and '_' can be seen as resistance wire. I___--______I As you can see, this is the same as a 2 resistor voltage divider if one of the input pins goes to ground. Leaving one input pin floating will allow you to use the potentiometer as a variable resistor instead. Using two voltage sources of different voltages will clamp the voltage between two points, since with two pins connected to two different potentials will result in voltage division, hence the name... potentiometer. It is in fact more accurate to call a potentiometer a voltage divider than to call it a variable resistor, since you much leave a pin floating if you want to use it that way, and will always function as a voltage divider if the inputs are connected to two different potentials.
The same 220ohm will work regardless of the value of your potentiometer. The resistor is there so that you don't over-current the LED when the potentiometer is maxed (when it's 0ohm resistance).
Dude, explain...Otherwise what's the point? Anybody that has enough mental capacity to navigate a browser to this specific url can do exactly what you are doing on screen, so if you are not explaining, like for instance that you have this setup as a rheostat using only 2 pins to vary voltage, you just wasted everybody's time, ya know?
From what I understand you are using this variable resistor as a rheostat and not as a potentiometer because you are only using the wiper and a leg beside the wiper and for it to act as a potentiometer you would have to use all three legs? But please correct me if I'm wrong because I only found all this out recently and I might not be fully correct.
Technically the pot in this circuit is being used as a simple variable resistor, also known as a rheostat. A much more complex application of a potentiometer creates a variable voltage divider, where the shaft position determines a specific voltage division ratio. The term potentiometer refers to the component, rather than the application.
Hi. I am working on making a mini amp for my headphones, the instructions I'm reading told be to get a pot, but they didn't say how to wire it. It's a dual-ganged stereo volume control. How do I wire it? Should I just wire one line of those metal prongs or both? What wires go where? Thanks sooo much for the help!!
The left pin of the potentiometer goes to audio ground. The middle pin is the audio output, and the right pin is the audio input. Since you want stereo, repeat the same connections for the second channel on the other gang of the potentiometer
Don't mind the haters youngins, as the proverb goes "haters gonna hate"... keep up the good work ya heard... are you an electrical engineer yet? It's six years after you posted this video MostElectronics...
Halp! I have a double pole rocker switch and potentiometer hooked up to the gauges in my car so I can switch from blue to green and control dimness. It isn't working anymore and I cant drive at night. My question is can I just replace everything with a single pole switch by combining some wires? I don't care about being able to dim the lights and switch colors, so long as I have something! Thanks, Nate
Not the best way to distinguish anode from cathode though. Say someone snipped the leads to the same length. In that case everyone who watched this video is confused. The flat edge on the lip towards the top of the LED is a better way to identify the cathode.
I like the idea of using the "pot" they make life much easier. My only question to you is, where was your power coming from? I couldn't see where your power rails were connected to any of your devices unless you had other wires out of view coming from them.
+Leo Payne Hi, the power is being supplied by my power supply. It was 5v. I made the powersupply from a old PC powersupply. Maybe I'll make a video on making a bench supply from a old psu, they are nice because 12v, 3.3v, and 5v is supplied. Ripple should be very minimal because high accuracy PC components must run on the power supply. All I had to do was trip a pin on the 24 pin female header to turn the psu on.
Why does the light turn down when turning the pot clockwise? I always know dials to turn up/louder/brighter when turning clockwise, and down/off when counter clockwise.
Look up a 555 timer to get a tone generated. To have an LED brightness correspond with the volume of the tone you might want to use a transistor to drive the LED. You could try putting the speaker and the LED in parallel but the buzzer might not get enough current if the speaker is in parallel.
Since only a single tone is required, we can simply hook up an active buzzer in parallel to the LED. Active buzzers have an internal oscillator that does what the 555 timer would do in your circuit. When the potentiometer is turned down, the LED will become dim and the buzzer will go quieter.
What is the input to the potentiometer... If possible please share the potentiometer buying link. And need input for audio equalizer, can we use this for audio equalizer? And how it works?
Can I use a momentary linear potentiometer in conjunction with an Arduino, AVR, PIC microcontroller, or Raspberry Pi to light (6) 12 volt LEDs simultaneously? (IE: lights the first LED and maintains it, then the second, and so on. The LEDs would then turn off simultaneously as the potentiometer returns to rest.)
+Dan Riley Yeah, that can definitely be done, but obviously you'll have to use another voltage source for the LEDs because of the low voltage capabilities of the microcontrollers. You could also make a voltage divider but this example will probably work.
im trying to make a go kart and I want to run 30-40 amps DC through a potentiometer to use it as throttle control. What kind of potentiometer can I get away with using?
that's not how it's done. potentiometers work by varying resistance. so if your throttle is on low, say, your potentiometer is going to be extremely resistive, give off a shitton of heat and probably melt. instead, use digital pwm, much more precise and very efficient.
Ko-wing wong @Adenoid Hynkel . Adenoid is right, use pwm to do it. You'll just need a large heatsink for the mosfet or transistor whatever you use to drive the motor haha
So how could I use that to turn on and off a switch to pulse something like 0-1000x a min? I dont know what to search I have the Idea of using a pot to vary the voltage to pulse a switch to turn on and off fuel injectors to simulate them in the car. Help!
When the pot is twisted down, the LED is at max brigth? So, the pot increases the resistance as it is twisted up? ...trying to learn something here, tanks
1K and 2K will work well in the sanse that you'll have the full range of the potentiometer (instead of 10 degrees between minimum and maximum like in his demonstration). What you need to take into account is the current that will flow through the potentiometer. An LED strip needs a lot of current which will likely burn your potentiometer if you connect it the way he shows in the video. You'll need a potentiometer who's output will go to the gate of a MOSFET to control the current going to the LED strip
Question: Why is it inverted? I´ve looke a Hundred tutorials over this theme and the knob seems illogically go turn on when the value reaches 0... Do we assemble it inverted because of the breadboard or...
I think the value 0 is referring to resistance so zero resistance means direct contact so full volts. As you turn the knob it moves the contact called the wiper along the carbon making it harder for current to flow, more distance to travel through the carbon means higher resistance so less power to the bulb/motor/whathaveyou. Hope that helps. Guy
Yes but you risk burning the LED. The resistor is there to make sure that even when the potentiometer is maxed, the current is limited to a safe level for the LED
Hello, I'm trying to prevent 0.1-2.75 volts from passing through but I would like from 2.75 volts up to 5 volts to pass through. Could I use a Pot to do this? Thank you
Would I be able to use a potentiometer to finely adjust the temperature of an electrical hotplate? It is 230V and max 1500W. I wonder if anyone can guide me a little? I dont know very much about electronics
It means that the pot can go up to 50k ohms. There are two types of pots, one is A, which has logarithmic relation between the resistance and the voltage, and B, which has a linear relation between the resistance and the voltage. So yours can go from 0 ohm to 50k ohm and it has a linear relation between the voltage and reistance
Well this is analog, if you wanted to go digital and to be able to control the brightness automatically you would use PWM. Also PWM is more exact because of each step out of 255. If its something simple like this its fine to use a pot but something more complicated I'd use PWM. also PWM is more fun too!
I'm 15 and have shomewhat of a understanding of electrical knowledge I kno how to solder how resistors work capacitors all that but I want to make what you did in this video but instead of a light i want to put a water pump for a fish tank it's small enough to go inside a water bottle (not threw the cap just the main part) that will be used as a way to regulate how fast the pump works. Any way I can make a simple circuit where it goes positive on the battery strait to pump and negative from battery to the switch regulator thin to the negative on the pump. Anyone pleas help
? ... A potentiometer is a simple _knob_ that provides a variable resistance, which we can read into the Arduino board as an analog value. In this example, that value controls the rate at which an LED blinks. We connect three wires to the Arduino board. o0o
This is because you didn't add a PWM circuit. You see, when you turn the potentiometer all the way it creates a short circuit which might have burned your potentiometer.
Okay, I'm trying to find out why a lot of people are saying NOT to put potentiometer in series with led to control brightness and insted use a PWM. I can't understand nor find the answer why, it does work as we can see in this video..? Anyone?
Can you provide the correct hardware, wiring diagram and software code required using an Arduino? I would like to use.....a 12 v battery to power the Arduino, (1) potentiometer, (6) mosfets, (6) resistors, and (6) 4" (12 v) LEDs.
First of all,thanks for reply I would like to learn about this.thats why I just order from amazon,so I did some simple,but I can't copy the way you did,it doesn't lit up,I don't know why.
does "multi-turn" mean you can spin it around forever? If so, what happens after 360 degrees? Has it been faded since 180 degrees or does it flick back to the first resistance?
ALE9069 it doesn't matter for this case because either way the resistor is going to be limiting the voltage to the LED but in other cases you want to have the resistor directly in series with the LED i suppose
The pot with this setup is NOT limiting the voltage, it's limiting the current. As stated above, this pot is set up as a rheostat. Need to use third terminal in order to vary the voltage.
Yes, they do the same thing in the same way. The value printed on the top of the potentiometer tells you how much range (distance between minimum and maximum - about 10 degrees in the video's case) you'll have. If you use a smaller value potentiometer (say 10K instead of 100K) the range will be wider. Bear in mind that while it can control an LED, it can't control powerful loads (like a DC motor) because lots of current flowing through it will make the internal resistor heat up and burn/melt itself!
Hello , I really liked your video sir ! 💜💜 Sir , actually I need your help ! sir , I am working on a project where I have to use a suitable potentiometer that can oppose 2 Amperes of D.C current !!! I have 6 A of D.C current and I want to use 4 A of D.C current by stopping 2 Amperes using a potentiometer or anyhow possible ! 6-2 = 4 ( 4 Amperes I want to achieve). Can you please tell me which potentiometer should I use or how can I do that anyway ?
Yes and it's actually more appropriate for this case because with you'll have 90-100 degrees of rotation between minimum and maximum while with a 100K you have 10 degrees between minimum and maximum like in the video. Just don't forget the resistor after the potentiometer so that you don't burn the LED
The typical way to wire the pot is..
Pin 1- jump wire from pin 1 to the chaise in order to ground out the pin. This ensures that the voltage/signal gets completely shut off when you turn the knob all the way down. Yes, you can skip this pin for simple applications like this if you really want.
Pin 2- Input voltage. The resistor limits current flow to the input. Without the resistor the LED will blow out.
Pin 3- Output voltage
The way you wired it up works fine but normally people like to turn the knob clockwise to increase the voltage, and not counterclockwise.
What mean jump wire from pin 1 to the chaise?
Everywhere else they say the second, middle, pin of the potentiometer is the output. Why not explain what the three pins are? You ignored one pin. Not very helpful. Sorry.
+ and - I would guess
Whatever side you pick on the potentiometer the first two pins are for the + - wires and 3rd wire is ground depending on wiring. not the same in every case. maybe that's why he didnt mention it.
good vid, i just learned 2 weeks of class work in 3 minutes
thanks, glad it could help!
Haha fully agreed!
Hi thank you for the video. Can we use it as a PWM?
If you want to connect a fan with a potentiometer this doesn't help. Just saying, for the ones like me. You will need to connect the first 1st and the middle with + of your power supply and the 3rd with your fan's red wire(of yellow if you don't have a red) and then connect the fan's black wire with the power supply ground
Your explanation help me out much more that the video. He doesn't explain the theory or the concept.
dude .. i didnt need to connect a fan, but you helped me more than the video xD thx
This doesn't help me at all right now I need to bypass a PCB board and wire a fan directly to the POT so I guess I need to know if it has polarity or not and then the other 2 control direction and can be wired either way is this right? Do you really need another resister after the pot isn't the pot also a resister or does an LED always need a resister no matter what? Would I need something in between the potentiometer and a fan? I have a rework station and for some reason, I have lost fan control I even installed a new potentiometer with no effect so I simply want to bypass the PCB and wire the fan directly to the POT but I don't know what pin does what.
can u try do some comparison with and without resistor using 5volt
Potentiometer lowers current and so is a resistor. It does not lower voltage.
+Joseph Ho It also does not prevent the circuit from reaching above any specific current. However, it will start to burn if it's operating above it's rated current.
Yea. That too
+Dennis Augustine Well... Increasing the resistance will lower the voltage once passing through a load if there is another resistive path to ground. So if both pins connect to different potentials, it will indeed control the voltage.
In the case here, he has 0v on one pin, and, im assuming 5v on the other, so the ouput will be between 0v and 5v, and is not functioning as an individual resistor, but as two of them, which is a voltage divider.
This is how they work, 'I' means input, '0' is output sliding on resistance wire, and '_' can be seen as resistance wire.
I___--______I
As you can see, this is the same as a 2 resistor voltage divider if one of the input pins goes to ground. Leaving one input pin floating will allow you to use the potentiometer as a variable resistor instead. Using two voltage sources of different voltages will clamp the voltage between two points, since with two pins connected to two different potentials will result in voltage division, hence the name... potentiometer.
It is in fact more accurate to call a potentiometer a voltage divider than to call it a variable resistor, since you much leave a pin floating if you want to use it that way, and will always function as a voltage divider if the inputs are connected to two different potentials.
+Richard Smith It can be either one. It's a versatile component.
sczrz I said that...
I enjoyed your video. It was very helpful. Thank you!
This PWM 555 generator looks pretty cool to build. i sent u a link to it
Thanks all, send me ne555p circuit
Why did you choose 220ohm resistor? What was the calculation you have used?
He used Ohms Law. The resistor is there to prevent the led from bursting.
What resister should I use if I am using a 5k pot?
The same 220ohm will work regardless of the value of your potentiometer. The resistor is there so that you don't over-current the LED when the potentiometer is maxed (when it's 0ohm resistance).
Thanks i just got done tinkering with one, but i notice its not as bright when i turn all the way up,, maybe my pot is too small?
Dude, explain...Otherwise what's the point? Anybody that has enough mental capacity to navigate a browser to this specific url can do exactly what you are doing on screen, so if you are not explaining, like for instance that you have this setup as a rheostat using only 2 pins to vary voltage, you just wasted everybody's time, ya know?
From what I understand you are using this variable resistor as a rheostat and not as a potentiometer because you are only using the wiper and a leg beside the wiper and for it to act as a potentiometer you would have to use all three legs? But please correct me if I'm wrong because I only found all this out recently and I might not be fully correct.
Technically the pot in this circuit is being used as a simple variable resistor, also known as a rheostat. A much more complex application of a potentiometer creates a variable voltage divider, where the shaft position determines a specific voltage division ratio. The term potentiometer refers to the component, rather than the application.
So then variable resistor, potentiometer and rheostat are all names for the component?
EXCELLENT video! Well explained and shown. Nice job. Many thanks.
Hi. I am working on making a mini amp for my headphones, the instructions I'm reading told be to get a pot, but they didn't say how to wire it. It's a dual-ganged stereo volume control. How do I wire it? Should I just wire one line of those metal prongs or both? What wires go where? Thanks sooo much for the help!!
The left pin of the potentiometer goes to audio ground. The middle pin is the audio output, and the right pin is the audio input. Since you want stereo, repeat the same connections for the second channel on the other gang of the potentiometer
Don't mind the haters youngins, as the proverb goes "haters gonna hate"... keep up the good work ya heard... are you an electrical engineer yet? It's six years after you posted this video MostElectronics...
Halp! I have a double pole rocker switch and potentiometer hooked up to the gauges in my car so I can switch from blue to green and control dimness. It isn't working anymore and I cant drive at night. My question is can I just replace everything with a single pole switch by combining some wires? I don't care about being able to dim the lights and switch colors, so long as I have something!
Thanks,
Nate
n8rad3 I'm going to say no because you don't want to combine voltages
Hi, I need to use potentiometer for audio equalizer, Which potentiometer raise how much gain or how much maximum gain?
Nice explanation
Short LED lead is the cathode for negative and longer one is anode for positive
Not the best way to distinguish anode from cathode though. Say someone snipped the leads to the same length. In that case everyone who watched this video is confused. The flat edge on the lip towards the top of the LED is a better way to identify the cathode.
I like the idea of using the "pot" they make life much easier. My only question to you is, where was your power coming from? I couldn't see where your power rails were connected to any of your devices unless you had other wires out of view coming from them.
+Leo Payne Hi, the power is being supplied by my power supply. It was 5v. I made the powersupply from a old PC powersupply. Maybe I'll make a video on making a bench supply from a old psu, they are nice because 12v, 3.3v, and 5v is supplied. Ripple should be very minimal because high accuracy PC components must run on the power supply. All I had to do was trip a pin on the 24 pin female header to turn the psu on.
Why does the light turn down when turning the pot clockwise? I always know dials to turn up/louder/brighter when turning clockwise, and down/off when counter clockwise.
How would you hook up a buzzer or speaker so that the sound increases and decreases and the brightness of the led matches?
Look up a 555 timer to get a tone generated. To have an LED brightness correspond with the volume of the tone you might want to use a transistor to drive the LED. You could try putting the speaker and the LED in parallel but the buzzer might not get enough current if the speaker is in parallel.
Since only a single tone is required, we can simply hook up an active buzzer in parallel to the LED. Active buzzers have an internal oscillator that does what the 555 timer would do in your circuit. When the potentiometer is turned down, the LED will become dim and the buzzer will go quieter.
What is the input to the potentiometer... If possible please share the potentiometer buying link.
And need input for audio equalizer, can we use this for audio equalizer?
And how it works?
Can I use a momentary linear potentiometer in conjunction with an Arduino, AVR, PIC microcontroller, or Raspberry Pi to light (6) 12 volt LEDs simultaneously? (IE: lights the first LED and maintains it, then the second, and so on. The LEDs would then turn off simultaneously as the potentiometer returns to rest.)
yea that's definitely achievable!
yea that's definitely achievable!
+Dan Riley Yeah, that can definitely be done, but obviously you'll have to use another voltage source for the LEDs because of the low voltage capabilities of the microcontrollers. You could also make a voltage divider but this example will probably work.
Which instrument can use for power supply and explain positive or negative terminal of power supply
Well that was brutal.
Can i use a 330 ohm resistor ?
Thank you so much for the great video .. i really need it .. but what i dont understand is .. it works for then it stops??? What's the issue
im trying to make a go kart and I want to run 30-40 amps DC through a potentiometer to use it as throttle control. What kind of potentiometer can I get away with using?
If you find one that can handle that, it's gonna be huge
that's not how it's done. potentiometers work by varying resistance. so if your throttle is on low, say, your potentiometer is going to be extremely resistive, give off a shitton of heat and probably melt. instead, use digital pwm, much more precise and very efficient.
Ko-wing wong @Adenoid Hynkel . Adenoid is right, use pwm to do it. You'll just need a large heatsink for the mosfet or transistor whatever you use to drive the motor haha
So how could I use that to turn on and off a switch to pulse something like 0-1000x a min? I dont know what to search I have the Idea of using a pot to vary the voltage to pulse a switch to turn on and off fuel injectors to simulate them in the car. Help!
In household items where can I find a potensiometer that works with LEDs?
Do you have a transistor explained like that?
Where is the black wire connected too? I can't really tell bec. It's not straight
When the pot is twisted down, the LED is at max brigth? So, the pot increases the resistance as it is twisted up? ...trying to learn something here, tanks
elcochipit yea thats correct.
Can a 250k or 500k guitar pot be used to dim 12v led strip lights?
+AngryWelshman yes it should
MostElectronics Thank you!
haha ya i probly should work on that
thanks for the input!
I want use a 12volt led strip, with a potentiometer. What varinace should potentiometer have ? 1K ?
1K and 2K will work well in the sanse that you'll have the full range of the potentiometer (instead of 10 degrees between minimum and maximum like in his demonstration).
What you need to take into account is the current that will flow through the potentiometer. An LED strip needs a lot of current which will likely burn your potentiometer if you connect it the way he shows in the video. You'll need a potentiometer who's output will go to the gate of a MOSFET to control the current going to the LED strip
The centre prong is usually the wiper.
Question: Why is it inverted?
I´ve looke a Hundred tutorials over this theme and the knob seems illogically go turn on when the value reaches 0...
Do we assemble it inverted because of the breadboard or...
I think the value 0 is referring to resistance so zero resistance means direct contact so full volts. As you turn the knob it moves the contact called the wiper along the carbon making it harder for current to flow, more distance to travel through the carbon means higher resistance so less power to the bulb/motor/whathaveyou. Hope that helps.
Guy
Do you have a video on a step-by-step on how to make that? I need to make one for my science class.
Which way you connect the resistor?
Doesn't matter.
@@Pilot92438473508 yeah it has no polarity
what would determine the resistance needed if I was powering to 10 watt LEDs
this is helping me build my halloween costume by allowing me to control the brightness of 4 LEDs placed on my circuit.
Can you use a pot with just a battery and a LED?
Is voltage and resitance the same
Is it possible without Resistor?
Yes but you risk burning the LED. The resistor is there to make sure that even when the potentiometer is maxed, the current is limited to a safe level for the LED
Pathetic work. I am surprised to see that the led goes dim when the shaft of the pot is twisted clockwise.
Hello,
I'm trying to prevent 0.1-2.75 volts from passing through but I would like from 2.75 volts up to 5 volts to pass through.
Could I use a Pot to do this?
Thank you
Use a regulator, many have built-in cutoff mechanisms that trigger when the voltage is below a certain threshold
What would you call that type of circuit board? I've seen loads of people with them.
a prototyping breadboard
Would I be able to use a potentiometer to finely adjust the temperature of an electrical hotplate? It is 230V and max 1500W.
I wonder if anyone can guide me a little? I dont know very much about electronics
what did you use for your input voltage ?
+greffith saycon 5v
How to use 4-4 pin potentio?....plz reply....I don't know how to use this...
I have a B50k does that work? PS good work
It means that the pot can go up to 50k ohms. There are two types of pots, one is A, which has logarithmic relation between the resistance and the voltage, and B, which has a linear relation between the resistance and the voltage. So yours can go from 0 ohm to 50k ohm and it has a linear relation between the voltage and reistance
Wow nice 🎉🎉🎉
Well this is analog, if you wanted to go digital and to be able to control the brightness automatically you would use PWM. Also PWM is more exact because of each step out of 255. If its something simple like this its fine to use a pot but something more complicated I'd use PWM. also PWM is more fun too!
I'm 15 and have shomewhat of a understanding of electrical knowledge I kno how to solder how resistors work capacitors all that but I want to make what you did in this video but instead of a light i want to put a water pump for a fish tank it's small enough to go inside a water bottle (not threw the cap just the main part) that will be used as a way to regulate how fast the pump works. Any way I can make a simple circuit where it goes positive on the battery strait to pump and negative from battery to the switch regulator thin to the negative on the pump. Anyone pleas help
can i use it to decrease speed of a dc motor
yes you can
Good one
? ... A potentiometer is a simple _knob_ that provides a variable resistance, which we can read into the Arduino board as an analog value.
In this example, that value controls the rate at which an LED blinks.
We connect three wires to the Arduino board.
o0o
what resistor shall I use instead of this
doesnt work. the light just stays on no difference when i turn the pot
My potentiometer burns up, I want to install heat sink but I don't have one.
This is because you didn't add a PWM circuit. You see, when you turn the potentiometer all the way it creates a short circuit which might have burned your potentiometer.
But even you haven't used pwm circuit so why didn't your potentiometer burn up?
Only if you move it all the way
Okay, I'm trying to find out why a lot of people are saying NOT to put potentiometer in series with led to control brightness and insted use a PWM. I can't understand nor find the answer why, it does work as we can see in this video..? Anyone?
Can you provide the correct hardware, wiring diagram and software code required using an Arduino? I would like to use.....a 12 v battery to power the Arduino, (1) potentiometer, (6) mosfets, (6) resistors, and (6) 4" (12 v) LEDs.
First of all,thanks for reply I would like to learn about this.thats why I just order from amazon,so I did some simple,but I can't copy the way you did,it doesn't lit up,I don't know why.
does "multi-turn" mean you can spin it around forever? If so, what happens after 360 degrees? Has it been faded since 180 degrees or does it flick back to the first resistance?
late reply but it means you can go clockwise and use right + middle pin, and go counterclockwise and use left + middle pin
what are the materials to prepare on this activity?
No you burn your led. The resistor prevents the voltage from going higher then the LED can take.
Do you have an email I could send a picture of my circuit to. Trying to hook up a pentiometer to a 4 volt battery
Lieutenant Dan's Legs it’s 5v minimum I’m sure
can I connect it with
step down transformer 12v direct
Difference between potentiometer and preset
Where can i find potentiometer please reply
Hi, I think I bought this on Tayda Electronics. You can buy these on Digikey too
@@MostElectronics thanks buddy
Thank you
why the led hadn't the resistor? and why is it on pin 2?
ALE9069 it doesn't matter for this case because either way the resistor is going to be limiting the voltage to the LED but in other cases you want to have the resistor directly in series with the LED i suppose
The pot with this setup is NOT limiting the voltage, it's limiting the current. As stated above, this pot is set up as a rheostat. Need to use third terminal in order to vary the voltage.
What if I don't use the resistor? Would that might burn my pot(weird sentence) ? Cause I think it did. Now it doesn't work.
Yes it should!
And where to get these items?
can I use this for speaker volume???????
will an audio potentiometer work with a led?
Yes, they do the same thing in the same way. The value printed on the top of the potentiometer tells you how much range (distance between minimum and maximum - about 10 degrees in the video's case) you'll have. If you use a smaller value potentiometer (say 10K instead of 100K) the range will be wider. Bear in mind that while it can control an LED, it can't control powerful loads (like a DC motor) because lots of current flowing through it will make the internal resistor heat up and burn/melt itself!
Hello , I really liked your video sir ! 💜💜
Sir , actually I need your help !
sir , I am working on a project where I have to use a suitable potentiometer that can oppose 2 Amperes of D.C current !!!
I have 6 A of D.C current and I want to use 4 A of D.C current by stopping 2 Amperes using a potentiometer or anyhow possible !
6-2 = 4 ( 4 Amperes I want to achieve).
Can you please tell me which potentiometer should I use or how can I do that anyway ?
Gud work
The camera should be more focused. ... I tried but it didn't worked.... What to do now????
Sorry but
Not actually helpful....
😢
Where's the power supposed to go
my led just light up for some seconds and the bulb breaks
John Paul Senosin lol what resistor did you use??
ya its as simple as this!
help me i have 7 pins in my potentio meter
that's not a potentiometer
in this video we don't show connection
You literally have a 2k pot you could have showed us with more variance lol
When u blew the LED u should have used a risister
kelama'an ujang...
Thanks!!!
Can we use 10k pot
Yes and it's actually more appropriate for this case because with you'll have 90-100 degrees of rotation between minimum and maximum while with a 100K you have 10 degrees between minimum and maximum like in the video. Just don't forget the resistor after the potentiometer so that you don't burn the LED
Which resistance you use
Sorry darn auto correct I ment to say where is the power supply
sounds like your microphone needs a potensioresistamatron!
Thanks
In india jo video of real potentiometer is available how does it works in real life But We study only in 2D
it is not woorrrkkiing!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!