Patreon and content creators is how the internet works. I appreciate the constant videos and tutorials man! I really want to get a decent scope one of these days, your videos tempt me to buy one all the time.
Trent Sterling I recommend the Rigol ds1054z. It's a 4 channel 50 Mhz scope that is super easy to hack to 100Mhz. It does serial, spi, and i2c decoding. It rocks my partner got a little extra money a couple of months back and bought me one. She is the best my partner and my scope I mean.
I appreciate the time and effort you put into these videos, and I wish I could afford to donate regularly to more of those who offer their knowledge and skills for free.
Yes, PWM modules work the way you described (and maybe 1000 other videos also describe), but the ability of control various aspects of motor behavior is what makes Arduino (and microcontrollers in general) so useful. If you have anything beyond speed control in mind, use a motor driver (e.g., Cytron) off one of the Arduino PWM pins.
Hey man, you don't need to explain yourself to TH-cam trolls. Seriously. The person who left that comment likely didn't mean it, and left it only for the lulz. Clearly electronics is where the money is, just look at Steve Wozniak...
learnelectronics He's brilliant, but he's worth 1/100th what Jobs was, just sayin'. On the other hand, if Woz was diagnosed with cancer he wouldn't refuse treatment and opt for psychics and crystal healers instead, so money isn't everything.
You explained how the higher current pwm controller used a mosfet, yea...... Why don't you use a mosfet on arduino? It's exactly the same principle with the same result no?
That PWM controller is exactly what I need!, I want to control two identical linear actuators (baring same weight) in parallel. I believe they are around 3amp each. I've seen a PWM on eBay from China at $6.99 but it;s only rated at 6amp. To be safe I'd prefer the 10amp PWM, where can I get that?
Love the videos brother!. Can I use this pwm to power as low as 1 milliamp and if so what is the part number?. What I'm doing is building a colloidal silver generator and need 1milliamp most the time. But would like to use it also as a power supply box for other projects so I would like a 0 to 30 volt and be able to fine-tune down to 1 milliamp. Can you or someone help with part names?....
I have to say that I appreciate all of your videos and that because of how you present the information, it is well worth being a patron!! People should think about how much they would have to pay to get this much information in a college course or trade school. I am happy and proud to be a patron of this channel!! Thanks, Paul, for all you do!!! It does mean a lot to many of us!!!
Funny this, about a week ago I built an X-axis power feed for the mill. Basically one of these PWM controllers w/reversing switch and a windshield wiper motor. When I checked the controller out I had to laugh and thought of your "The 555 is everywhere". Good video, thanks as usual"!
I have already used the Arduino PWM signal to fire a MOSFET (IRFP260) with a few more things like an inductor and capacitor and I'm getting good results. Lots of current. Very convenient because I can tweak the thing via the code.
I'm a busker, street performer. You can tip me if you like my music or walk past. Your choice. Love your vids Paul. Keep up the fantastic videos. Hope you make a load of cash. 👍
Great video. Would it be easy to use an arduino or attiny to drive a FET? I was thinking of trying this but havent found examples and am fairly new to arduinos and electronics.
Why not hook up the 12v positive wire of your motor to 12v and then your ground of your motor to the 12v power supply AND the Arduino board along with the PWM blue wire of your motor to the PWM signal on your arduino?
Paul if I wasn't broke I totally throw you a few bucks. I love your videos I just recently got into hobby electronics and you're the only person that makes any sense to me on here. I could not figure out how to do pwm with a 555 timer until I saw your video on it and like I said man if I wasn't broke myself I would totally hook it up and if things change in the future you will be hearing from me again.
Hi-5 I love it a pair of Talking Hands. people can be so oblivious to the amount of time and effort it takes to making a video. even something simple like this video and I even hate saying simple because I know from trying to make videos in the past for other things how even the most simple video can take up a lot of time and effort so much appreciation
Thanks for your explanations. If I want to use an arduino to control an engine (24v - 5A) that currently uses one of those PWM (12-40 v), what is the easiest way? For example, replacing the analogue pot with a mosfet or a digital pot? Please help !
You can just use a PWM output pin to modulate the ON/OFF time of a switching transistor or heavier duty MOSFET. The low power of the output pins on the arduino doesn't matter since you wouldn't want to power your load through the arduino power supply anyway. The difference is the Arduino would be a separate module with a separate power supply that only tells the transistor when to switch. The motor and its own power supply would just be ran through the switching transistor/FET with the Arduino PWM pin feeding the Gate. I've seen people drive FETs directly from the output pins before but it depends on the max values. Need closer to 5v for a FET but with a normal bipolar transistor you could switch moderate loads with something like a 2n3055 only feeding the Base a signal closer to 1v. So for example I was just playing with a simple setup using a random FET I had laying around to drive a drill motor. I set my Arduino to read a potentiometer feeding into an analog pin and translate that digitally to a PWM output pin. This causes the output pin to deliver its 5v output with a duty cycle dependent on the wiper setting of the potentiometer. So when that output pin is fed into the Gate of a suitable MOSFET it will switch it HIGH/LOW according to the square wave from the Arduino. So cranking the potentiometer knob increase/decreases the frequency of the ON time and thus the motor speed. When I was first doing this I thought I had my pin frequency too high playing around with other stuff but after setting it back to default realized it was just certain motors being finnicky. Sometimes you will need to give them a kickstart or they will sit there idle and just ring under dead short causing the FET/Transistor to overheat.
Great video. Hey can you do a video on the stm32 boards? I'm thinking about ordering some to try and get a high speed rising edge. I want to try and look at the bandwidth limit on my scope. I'm not sure if it is fast enough or if I should build something specifically to test it. I like the fact that a dollar month let's me help you keep making videos. I live on a small VA disability check that I have to stretch very hard. I can not afford any of the electronics courses online. What I can afford is a few dollars a month that I can give to the channels that I value the most. Anyone that complains about you asking for support has no clue how the world works now or they are a spoiled child. Keep up the great work Paul and have a great day.
For your information there are some good clips on TH-cam showing how to evaluate/measure the bandwidth of an oscilloscope. They might not be super accurate methods but some of them will give you a very good estimate. Simply search for "measure oscilloscope bandwidth" and you'll get what you need. For the fast rising edge oscillator I built one based on the 74AC14 Schmitt Trigger Oscillator presented by wa2ew (Alan). It is very portable and very useful with an oscilloscope to measure capacitors / inductors, coax impedance, TDR, etc. With the 74AC14 I was able to get a rising edge in the order of 2ns and a falling edge of less than 1ns.
AvE is an acronym for Arduino vs Everything, so its A.V.E. not Ave ;) sadly those pwm controllers are not controllable with an arduino =/ or usable for higher voltages
fredlllll um I can think of a way to control that high power pwm board with an Arduino. You could use it to control the potentiometer. You might have to build a board to sit between the Arduino and the pwm board to shift the voltage levels but it is very doable.
"Men with beards" is dated. Should be "men and women with beards."
Patreon and content creators is how the internet works. I appreciate the constant videos and tutorials man! I really want to get a decent scope one of these days, your videos tempt me to buy one all the time.
Trent Sterling I recommend the Rigol ds1054z. It's a 4 channel 50 Mhz scope that is super easy to hack to 100Mhz. It does serial, spi, and i2c decoding. It rocks my partner got a little extra money a couple of months back and bought me one. She is the best my partner and my scope I mean.
You should connect a flyback diode to the drill motor to avoid inductive spiking @learnelectronics
I appreciate the time and effort you put into these videos, and I wish I could afford to donate regularly to more of those who offer their knowledge and skills for free.
Yes, PWM modules work the way you described (and maybe 1000 other videos also describe), but the ability of control various aspects of motor behavior is what makes Arduino (and microcontrollers in general) so useful. If you have anything beyond speed control in mind, use a motor driver (e.g., Cytron) off one of the Arduino PWM pins.
Hey man, you don't need to explain yourself to TH-cam trolls. Seriously. The person who left that comment likely didn't mean it, and left it only for the lulz. Clearly electronics is where the money is, just look at Steve Wozniak...
Woz is my all time favorite engineer.
learnelectronics He's brilliant, but he's worth 1/100th what Jobs was, just sayin'. On the other hand, if Woz was diagnosed with cancer he wouldn't refuse treatment and opt for psychics and crystal healers instead, so money isn't everything.
I agree
A long, long time ago... in a galaxy far, far away... darn it wrong video.
You explained how the higher current pwm controller used a mosfet, yea...... Why don't you use a mosfet on arduino? It's exactly the same principle with the same result no?
That PWM controller is exactly what I need!, I want to control two identical linear actuators (baring same weight) in parallel. I believe they are around 3amp each. I've seen a PWM on eBay from China at $6.99 but it;s only rated at 6amp. To be safe I'd prefer the 10amp PWM, where can I get that?
Love the videos brother!. Can I use this pwm to power as low as 1 milliamp and if so what is the part number?. What I'm doing is building a colloidal silver generator and need 1milliamp most the time. But would like to use it also as a power supply box for other projects so I would like a 0 to 30 volt and be able to fine-tune down to 1 milliamp. Can you or someone help with part names?....
I have to say that I appreciate all of your videos and that because of how you present the information, it is well worth being a patron!! People should think about how much they would have to pay to get this much information in a college course or trade school. I am happy and proud to be a patron of this channel!! Thanks, Paul, for all you do!!! It does mean a lot to many of us!!!
Thank you David.
what motor driver will handle 4 drill motors ...through ardruino...and blutooth..thanks and apprieciate your videos
I'm at number 418 with the thumbs up. Was hoping for number 555 ...!!! ( it's everywhere ! )
I wish I'd found Arduino years ago. I've only been doing projects for a year.
I was almost screaming 555! :) And you can donate to Paul via Paypal. I've donated once but I can't find the link at the moment.
The link is in the description. Thanks for your support!
Funny this, about a week ago I built an X-axis power feed for the mill. Basically one of these PWM controllers w/reversing switch and a windshield wiper motor. When I checked the controller out I had to laugh and thought of your "The 555 is everywhere". Good video, thanks as usual"!
It really is amazing where you find these little guys...
But what if you also need to control frequency?
Thank you I am enjoying you videos
I have already used the Arduino PWM signal to fire a MOSFET (IRFP260) with a few more things like an inductor and capacitor and I'm getting good results. Lots of current. Very convenient because I can tweak the thing via the code.
I'm a busker, street performer. You can tip me if you like my music or walk past. Your choice. Love your vids Paul. Keep up the fantastic videos. Hope you make a load of cash. 👍
Loved this video the 555 is awesome
I always tell people there is like a 95% chance that any electronic device you open will have a 555 (or 7555)
Great video. Would it be easy to use an arduino or attiny to drive a FET? I was thinking of trying this but havent found examples and am fairly new to arduinos and electronics.
Why not hook up the 12v positive wire of your motor to 12v and then your ground of your motor to the 12v power supply AND the Arduino board along with the PWM blue wire of your motor to the PWM signal on your arduino?
arduino all the way for me
Paul if I wasn't broke I totally throw you a few bucks. I love your videos I just recently got into hobby electronics and you're the only person that makes any sense to me on here. I could not figure out how to do pwm with a 555 timer until I saw your video on it and like I said man if I wasn't broke myself I would totally hook it up and if things change in the future you will be hearing from me again.
Hi-5 I love it a pair of Talking Hands. people can be so oblivious to the amount of time and effort it takes to making a video. even something simple like this video and I even hate saying simple because I know from trying to make videos in the past for other things how even the most simple video can take up a lot of time and effort so much appreciation
Thanks for your explanations. If I want to use an arduino to control an engine (24v - 5A) that currently uses one of those PWM (12-40 v), what is the easiest way? For example, replacing the analogue pot with a mosfet or a digital pot? Please help !
You can just use a PWM output pin to modulate the ON/OFF time of a switching transistor or heavier duty MOSFET. The low power of the output pins on the arduino doesn't matter since you wouldn't want to power your load through the arduino power supply anyway. The difference is the Arduino would be a separate module with a separate power supply that only tells the transistor when to switch. The motor and its own power supply would just be ran through the switching transistor/FET with the Arduino PWM pin feeding the Gate. I've seen people drive FETs directly from the output pins before but it depends on the max values. Need closer to 5v for a FET but with a normal bipolar transistor you could switch moderate loads with something like a 2n3055 only feeding the Base a signal closer to 1v.
So for example I was just playing with a simple setup using a random FET I had laying around to drive a drill motor. I set my Arduino to read a potentiometer feeding into an analog pin and translate that digitally to a PWM output pin. This causes the output pin to deliver its 5v output with a duty cycle dependent on the wiper setting of the potentiometer. So when that output pin is fed into the Gate of a suitable MOSFET it will switch it HIGH/LOW according to the square wave from the Arduino. So cranking the potentiometer knob increase/decreases the frequency of the ON time and thus the motor speed. When I was first doing this I thought I had my pin frequency too high playing around with other stuff but after setting it back to default realized it was just certain motors being finnicky. Sometimes you will need to give them a kickstart or they will sit there idle and just ring under dead short causing the FET/Transistor to overheat.
Have you ever done an electronic dice using an Arduino and LEDs. Say a dual dice for a monopoly game?
No, but i could.
I can't find your patreon link. Have I gone blind?
Www.patreon.com/learnelectronics
It should be in the description.
I see it now. It just wasn't a hyperlink.
Great video. Hey can you do a video on the stm32 boards? I'm thinking about ordering some to try and get a high speed rising edge. I want to try and look at the bandwidth limit on my scope. I'm not sure if it is fast enough or if I should build something specifically to test it.
I like the fact that a dollar month let's me help you keep making videos. I live on a small VA disability check that I have to stretch very hard. I can not afford any of the electronics courses online. What I can afford is a few dollars a month that I can give to the channels that I value the most. Anyone that complains about you asking for support has no clue how the world works now or they are a spoiled child. Keep up the great work Paul and have a great day.
Ahmen brother, thankfully we get some pittance from the VA!
Thank you. And yes i will. I have a "blue pill" stm32 here.
For your information there are some good clips on TH-cam showing how to evaluate/measure the bandwidth of an oscilloscope. They might not be super accurate methods but some of them will give you a very good estimate. Simply search for "measure oscilloscope bandwidth" and you'll get what you need. For the fast rising edge oscillator I built one based on the 74AC14 Schmitt Trigger Oscillator presented by wa2ew (Alan). It is very portable and very useful with an oscilloscope to measure capacitors / inductors, coax impedance, TDR, etc. With the 74AC14 I was able to get a rising edge in the order of 2ns and a falling edge of less than 1ns.
SimpleEnough2k9 sounds like I need to order some chips. 2ns is right where I want to look so that sounds perfect.
AvE is an acronym for Arduino vs Everything, so its A.V.E. not Ave ;)
sadly those pwm controllers are not controllable with an arduino =/ or usable for higher voltages
fredlllll um I can think of a way to control that high power pwm board with an Arduino. You could use it to control the potentiometer. You might have to build a board to sit between the Arduino and the pwm board to shift the voltage levels but it is very doable.
fredlllll, I think that Arduinos verses Evil? Not that it matters one hoot!
i think the circuit isnt controlled by voltage but by the resistance, and its hard doing that with an arduino
right, could be evil aswell, i was too lazy to look it up
Just add a high power logic level FET to the PWM pin of the Arduino and you can do the same...
Great visual example! Loved this one Paul - right up my road!