The beauty of Arduino is it's simplicity

[@ed-jf3xh]

Sorry for your loss Paul. At 96, I'd say God has blessed her well. God's peace to the family.

[@davidglynnguitars8119]

Losing family is rough. Sorry for your loss. Prayers for peace and solace. Great Video!!!

[@mauricepetit9986]

Sorry for your loss Paul... Still it's a great video you just did. Really appreciate what I'm learning from those videos. Thanks again.

[@gartmorn]

Great looking wee project Paul! Microcontroller projects are probably my favourite subject so you definitely have my undivided attention!

[@learnelectronics]

Well this one shall continue

[@circuitmonkey6653]

Sorry for your loss. Great video. Keep up the good work.

[@MrVosh-nj2lc]

Hi Paul... happened onto your YT site and I was intrigued with your knowledge of electronics and your willingness to teach others. I'm impressed with your vitae, especially getting your MS from the U. of Pittsburgh. I too am an alumnus of Pitt and obtained my graduate degree in chemistry from there. And, although my work experience has been involved with industrial research chemistry, I have enjoyed being an electronics hobbyist since the 1950's. It was during this era I was first licensed as a novice amateur radio operator. Since then I have gone through the ranks and now have my Extra class license, too. I'm retired now from my industrial occupation but I still have a continuing interest in electronics. I am now a subscriber to your channel and look forward to many more informative videos which you so aptly produce. Thank you for sharing your knowledge in a down-home style that everyone can relate to.

[@LimbaZero]

If somebody is watching this now. I recommend to use MOSFET as a switch here. Less powerloss to MOSFET and can drive direcly like 12V motors from higher rail voltage. So connect G like in here, S to ground and D to motor and motor to +12V. Put ferris wheel diode across motor (catode to + and anode to -) This will keep mosfet happy when PWM is going off state. Edit: This is also how you can drive that motor in same power like in part 3 video. IRF2907 with Vgs 4.5V (gate to source voltage) you can reach about 6A Id (Drain current) and 0.1V Vds (drain to source voltagedrop) about 0.6W power loss. (Infenion IRF2907 datasheet Fig1)

[@MCsCreations]

Really nice little project, dude. 😊 And I'm really sorry for your loss. 😔

[@melplishka5978]

Sry for your loss bud.

[@georgechambers3197]

Sad to hear about your Aunt. Happy to see an Arduino project again. 😀 Keep up the good work!

[@kali_muon]

Great video! I know some people have suggested this before, but OBS is a great alternative to bandicam for screen recording. You said it crashes your laptop; try going into Settings -> Output, then click the Encoder dropdown and see what options appear. If your laptop has an Intel processor, you should see QuickSync. QuickSync uses a hardware encoder, so your laptop shouldn't be strained nearly as much. Set the Video Bitrate between 2k and 3k. Finally, click the Video menu on the left and set your output resolution and framerate as desired. Hopefully, this will keep OBS from crashing your PC. Thank you again for spending time to make electronics videos.

[@tameral-rodainieh849]

Keep going very good work, Good luck 👍🏻

[@TheZrpilot]

Thanks for the detailed explanation of the code, Paul!!!!!!!!!!!

[@brian5593]

Loving the Arduino stuff! I'm sorry about your aunt.

[@mikeoliver3254]

Great starter project Paul, I think I see where you are going with this one. I can’t wait to see how wrong I am. Sorry about your aunt, hope everything else is going well.

[@learnelectronics]

I'm just going to change input sensors and output devices to show folks how easy it is to use an Arduino. 😀

[@myplasticbricks2239]

Very good video. Good explanation, easy to understand, helpful for learning. Thanks!

[@0m3rtaxiii13]

Never noticed your hands till you pointed them out today. I Figured today was just swelling from heat or something. Only other thing I've thought was how much I'd hate to get a smack out of you, lol. But on a serious note I hope that, as you say, all really is good with the old ticker there man. Keep an eye on it. Your vids have been a great help to me personally. Your explanations are easy to understand and you're actually just fun to watch. So thank you My only suggestion is you should either reference/mention or even sometimes link some of your previous videos at times. Usually for elaboration regarding the topic at hand as you tend to cover many topics (Sometimes at once), quite often and that kind of repetition is great for learning. Seems people often don't willingly go back to watch older content but you really do have treasure trove with a wealth of knowledge built up here that i myself will often save and reference. Just my 3 cents Anywhoo, Thanks again! Really. And condolences to you and your family. Look after yourself!

[@learnelectronics]

Thank you

[@RoyAntaw]

Thanks for video during a difficult time for you and your family. Take care.

[@monophonic_og]

I am sorry for your loss. Please accept my condolences. Wasn't the Arduino's current sink capacity able to pull the FET gate low fast enough? Because you had the pulldown there as you pointed out. I wouldn't have thought it was necessary.

[@learnelectronics]

It may not have been necessary, but it is always good practice.

[@monophonic_og]

@@learnelectronics of course it is! I later realized that if the Arduino loses power or a programming mistake puts the PWR pin in high impedance the FET would remain conducting without the pulldown. That in turn may fry whatever you were driving with it. So always pull down you FET gate.

[@michaelpadovani9566]

Nice video and I'm in total agreement with Arduino being a great input output device. Reminded me of my power meter logger (which i use a lot) taking in an analog input and using that to set a datalogging interval. Only limited by your imagination (and memory, at which point use an esp8266 or esp32 lol).

[@bblod4896]

Looks like the motor makes a pulse noise? Nice job, look forward to the environmental module.

[@saysphilippe]

Sorry for your loss Paul. One question I have after another great video is what is the benefit of using this MOSFET instead on using a transistor ex. 2N2222 which is also powered from external power source?

[@learnelectronics]

Just convention I guess. I tend to use BJTs for signals and FETs for power.

[@saysphilippe]

@@learnelectronics Thanks! I'm building my automated vegetable garden system, powered by solar power - charging batteries. And I want to turn of all power craving sensors and water pump when going into deep sleep, so I will try with a FET today! Keep up the great work! I just found your excellent video on the difference between a BJT and a MOSFET. kzbin.info/www/bejne/iXSyf5abidyoq8U

[@icenesiswayons9962]

Cool video, when you went to explaining the code and adafruit you voice col. Dropped way low, was hard to hear.

[@learnelectronics]

Sorry

[@alanullmer8369]

Why would drain from vcc and source to the fan using a mosfet. Sounds backwards

[@RPBiohazard]

I see your analogwrite in the Arduino code but what is actually generating the square wave with changing duty cycle here?

[@learnelectronics]

The Arduino generates the code. The analogWrite creates a square wave output on the designated pwm pins.

[@RPBiohazard]

@@learnelectronics Oh, I thought analogWrite output mapped its argument to 3.3V. Thanks for clearing that up, great video.

[@ianbertenshaw4350]

Excellent video Paul ! I wonder how you would change the code to give a soft start feature ? We used to build all sorts of PWM kits but now there is no need as arduino makes it so simple !

[@learnelectronics]

you could just add in a a little for/next loop to slowly ramp up to your starting voltage.

[@ianbertenshaw4350]

learnelectronics Ok thanks Paul ! I will have a look into that , i kept thinking about using if / else so looks like i have some research to do !

[@b3nosborne]

Sorry to hear your bad news. I'm fast becoming your designated KZbin comment pedant but I want you to know that I mean everything constructively, it's sometimes difficult to tell what the tone is online. I appreciate you're trying to keep the example as simple to understand as possible. Anywho. I'd recommend putting a resistor in series with that potentiometer because at the mo when your pot is at 0 there is no resistance between VCC and GND so you have a dead short which I reckon will be what was causing the brown out (you'll need to change code). If that's what was happening you'll hear your PSU relays clicking in and out. Not a major problem at the bench but possibly a PITA if you switch to an alternative supply later (eg. batteries). It could get quite warm! I reckon you can ditch that decoupling capacitor because even though it solves the problem I'm not sure it's doing what you think it is. I reckon its charging and discharging in time with your PWM signal so it's acting as current limiting (like a resistor) on the pot side and preventing your PSU from detecting a dead short - scopeage will reveal all. I reckon a diode over that fan wouldn't go amiss to deal with any back voltage (although small). Hoping to be helpful. Best wishes.

[@learnelectronics]

Thanks. The pot will be gone in the next video and the fan in the following.

[@electroprem]

You heard my voice man

[@crckdns]

Field Effect Transistor, not Transformer! @7:20

[@Snarky_Radio]

simple is good. Thank you.

[@sortofsmarter]

Hello Paul, so possibly complex question maybe a idea for a video??? could this be implemented into a Attiny85?? I have a computer fan that I have replaced that is noisy (but great air volume) but at times I drive the system hard and if I could either turn it up or it ramp up on its own without buying a Chinese control board would be cool and have the display on the front of the case...

[@learnelectronics]

Yes, you could easily do this on an ATTiny.

[@rolandberendonck3900]

@@learnelectronics But off course a 10 cent 555 timer will also do the job :)

[@sortofsmarter]

@@urugulu1656 hmmm, maybe your right..lol didnt think that all the way through... of course a nano is cheap enough to do it with...

[@Venomator.]

Hey Paul, sorry to hear about your Aunt, tough times buddy, condolences to you and your family sir!... 💚 Could this little experiemtn be duplicated with a RPi or RPi Zero Prof?... 🤔 🧐 🐍

[@learnelectronics]

Thank you. yes of course you could use a pi. Program it in python and you are good to go!

[@kwisatzhaderach1458]

Hey you do a great job.

[@learnelectronics]

Thanks

[@captainpugwash4100]

Yep, it’s simple! Even I understood it! 😂😂😂😂

[@stickz9871]

If a 13 year old like me can understand it, anyone can understand it. Sorry about your aunt.

[@HazeAnderson]

I just got an Uno. Now what? 😂

[@learnelectronics]

Now you need a project

[@vidanatural_oficial]

It was a nice one.

[@piyugkumar]

Wow