BOX MOD GODS ...Question...

[pwndoc]

ok so building a nice little dna30 box here.
realllllly want to use this switch .

Invalid Request
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DATASHEET:http://spec.e-switch.com/lambweb/52-PV4F2Y0SS341.pdf

just wanted input on wiring this to a dna board rather than wade through the sea of info led switches abound.

In the past ive never used leds like this so before somehow blowing up my board ect ect.
guys on reddit were no help at all.

 

[zaphodbeebs]

Are you asking about how the wire the LED specifically? You'd want to wire from the battery supply directly. If you are using 18650 batteries at 3.7v, you would do some ohms law kung fu to figure out what kind of resistor to add in line to restrict the current going to the LED. The datasheet says the LED has a 2.8v drop at 20mA. So then we solve for R.

R = (Vin - Vdrop)/i = (3.7 - 2.8)/0.02 = 45ohm resistor. Round up the next highest common value...47ohm I think.

Best of luck!

 

[pwndoc]

Are you asking about how the wire the LED specifically? You'd want to wire from the battery supply directly. If you are using 18650 batteries at 3.7v, you would do some ohms law kung fu to figure out what kind of resistor to add in line to restrict the current going to the LED. The datasheet says the LED has a 2.8v drop at 20mA. So then we solve for R.

R = (Vin - Vdrop)/i = (3.7 - 2.8)/0.02 = 45ohm resistor. Round up the next highest common value...47ohm I think.

Best of luck!

So using this method it would light with the button press? And how do you think that will affect the wattage of the dna? That might be a ......ed question .... thanks for the formula though

Sent from my SCH-I545 using Tapatalk

 

[zaphodbeebs]

That would leave the light on when the device is powered. YOu would wire through the switch itself to make it light on a press.

This would use a negligible amount of power in the circuit. We use ohms law again to determine the power used by the LED.

P = I*V = 0.02 * 2.8 = 0.056watts = ~5mW.

Hope this helps!

 

[pwndoc]

Emailed evolv


Hi Justin,
Wire the LED to the atty output. .If it blows up, it was your idea and if it works, it was my idea

Just kidding, it should work fine in that configuration.

Thanks,
Brandon
Evolv, LLC

Do you even vape?