Make Your Own Candy Thief Alarm - The Learning Circuit

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After years of having brothers and coworkers sneaking off with her candy, Karen is using her new knowledge of transistors to create an alarm to protect her sugary treasure. Make along with Karen an alarm using a photoresistor, buzzer, and transistor! Connect with Karen on element14: bit.ly/2PtEe9H
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Опубликовано:

6 окт 2024

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Комментарии : 26

@davidhealdjr.513 6 лет назад

These "The Learning Circuit" videos with Karen are great, keep em coming. She does a great job of explaining the basics to those of us who are trying to get a grasp of things and really get into the hobby.

@TecHead-2000 6 лет назад

You know, Karen's the last person on this show who still has that energy that Ben used to have. It should just be The Karen (Last Name) Show. I would watch that. A good RU-vid channel has either one single person or a very tiny crew that brings consistent content.

@skozra 6 лет назад

Agreed. Karen is brill, i've always enjoyed her contributions to the channel, when she was co-hosting with Ben and the presentations she now does on her own. She's fab.

@colonelbarker 6 лет назад

Really loving this series, Karen has really come into her own here. I'd love to see the circuit switch on then only be able to be reset once a button is pushed.

@etimespi 6 лет назад

4:53 one thing to note is that if you put the buzzer on the Emitter side of the transistor, it will be a little quieter. That's because transistors have a voltage drop, which is typically 0.2V. It's usually best to put things on the collector side, unless you account for this drop. I bring this up because I had an IR project where the IR LED was a little dimmer than expected because of this. Didn't matter much for that project, but it's something to keep in mind.

@maker_karen1785 6 лет назад

That's a great point! Thanks for pointing that out.

@philsbbs 6 лет назад

I only watch this channel now for Karens videos. Keep up the good work Karen.

@xKatjaxPurrsx 6 лет назад

Happy Halloween Karen

@taoualitsaid742 Год назад

Crazy motivated Elektroniker!!! Very didactic! Thank you

@brandtharen 6 лет назад

Nice transistor application. And the demonstration at the end was perfect. As another commenter mentioned if the thieves are smart they might try to steal candy in the dark. Maybe you should add some LEDs to light up the candy so you can see it better 😉(and have enough light to trigger the alarm in the dark).

@marhar2 6 лет назад

+1 for the Learning Circuit episodes. I learn something every time, and you can never have too much regrettable acting!

@abeleski 6 лет назад

So nice I watched it twice

@AirborneSurfer 5 лет назад

Max Olmstead: Master thief! 🤣

@typedeaf 2 года назад

@ 4:00 you state the resistor is pulling the base to ground. Without the resistor, the CdS could still switch the base on and off, right? You seem to be implying that w/o the resistor, the CdS wont switch the base on, or off. Can you explain why the resistor is needed, in more detail?

@richardadamson3643 6 лет назад

Can you guys bring back Radio Shack

@hellspark 6 лет назад

If you live near a Hobbytown USA, they carry Radio Shack parts.

@skeggjoldgunnr3167 5 лет назад

@@hellspark Even though I grew to view Radio Shack as a terribly over-expensive garbage shop full of nothing you would want (Because that's what they had become)...I am happy to hear of this - thanks for the heads-up!

@changarawemichael9795 5 лет назад

I love you

@aaronfrenzal 6 лет назад

Put the candy box in a communal fridge, like at work...

@skeggjoldgunnr3167 5 лет назад

At a job I had once: we had ourselves - a LUNCH THIEF! This lunch thief would sneak into our break room fridge and eat our food! I paraded two Arby's roast beast sammichkes around for all to see prior to planting them in the fridge. One of them had insulation batting inside, the other had a little sand inside. Right there on the floor was the bite shaped piece of sammichk. FUNNY! The insulation turned him off I guess. Our beloved janitor, a big fat quiet sweet black man twice our age. Non of us said anything to him - we all liked him too much.