Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi Electro-Tech,
This might be a silly/vague question but all these components are just plain overwhelming!
How does a person narrow it down to a specific component they need to use for a particular project? There are thousands of components....its insane!!
I have only figured out what I...
Hey Torben,
I guess I meant an LED and a phototransistor then. Sorry, the electronic terms are still not concrete in my mind.
What I am trying to do is:
A person will blow into a tube. They will blow on the piece of paper, which will trip the sensor. The sensor will then turn a heating...
Hi!
Just wondering if it is normal for a stepper motor to get hot during operation? Its not hot enough that I cant touch it, but definitely HOT
Thanks,
MBE
Thanks Torben,
I think if I have a phototransistor on one side and a photodiode on the other that might do it. BUT I have used Infared phototranisistors for a pulse detector. I think it is basically the same principal, right?
The only thing about using an infared sensor is that it seems SO...
Hi Electro Tech,
I need an optical sensor that can be "tripped" when a thin piece of paper moves past it.
Can anyone suggest a type of small optical sensor to start looking into?
My goal is to make a system where:
When the optical sensor is "tripped" it tells, through use with an arduino...
Thank you so much! That did it!!
My problem was that I had the Green and the Red wires hooked up to ground, not Power. Thats so confusing. THANK YOU SO SO SO SO SO SO MUCH!!!
I would have never realized that myself.
So...shamefully asking....what is the driver actually doing? I understand...
Dear Electro Tech,
I am very new to electronics so please bear with me.
I am TRYING to use an Arduino prototyping platform to operate a linear actuator.
(http://arduino.cc)
I bought 1 Unipolar Linear Actuator
Digikey.com item # 403-1030-ND **broken link removed**
and 1 unipolar...
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