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12:07 AM
They use the super conductors to create DC magnetic field and move the part to be heated.
 
 
9 hours later…
8:58 AM
Hello, I'm new to electronics and I'm trying to build a led array. Youtube videos helped me in getting a pretty good idea of what should be done.So right now I'm planning on using GPIO pins of a raspberry pi to control the array. My doubt is "The output voltage of GPIO pins is around 3.3V. How can I control an array of high power LEDs".
 
 
5 hours later…
2:22 PM
@PrashanShan LED driver or relay
 
3:14 PM
@adamaero Thank You. Relay seems to the trick. Lets say I'm making a 9x9 led array I would need 9 individual relays right? Is there any way to use single component to do the job?
 
4:11 PM
@PrashanShan a relay is like the size of a LEGO brick or two. You'll need one for each LED
@PrashanShan Well, I'm wrong. You might be able to use something like this: smile.amazon.com/…
 
 
1 hour later…
5:35 PM
Are there any good turnkey PCB services with an auto-quoting system in north America?
 
 
6 hours later…
11:28 PM
@VoltageSpike for what size an order? onesies, a baker's dozen, hundreds?
 

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