Search found 345 matches

by darrellg
Fri Dec 28, 2018 10:51 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

I am not. The only reason I know to check with the CDRH is that you mentioned it was related to laser regulation, with which I have some experience. I can't think of any other agency that would deal with that type of stuff, but you never know when it comes to government regulation. Something like ht...
by darrellg
Fri Dec 28, 2018 10:07 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

The reason I ask is that, in the US, the CDRH specifically exempts LEDs from regulation: LEDs (Light Emitting Diodes) are different from laser diodes and are not subject to the Federal laser product performance standard. ref: https://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsan...
by darrellg
Fri Dec 28, 2018 9:59 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

The laser categorization system now includes LEDs; class 1 = safe use under all foreseeable conditions. So I need some documentation that correctly classes the specs of the LED I posted. I think its 1, but not sure. The output is 150mw, which I think is much higher than your remote, so it needs to ...
by darrellg
Thu Dec 27, 2018 9:38 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

by darrellg
Thu Dec 27, 2018 9:33 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

Yes, TV remotes use pulsed IR LEDs to transmit codes to the television.
by darrellg
Wed Dec 26, 2018 10:05 am
Forum: Projects
Topic: safety inquiry
Replies: 11
Views: 137

Re: safety inquiry

They're used in hundreds of millions of TV remote controls. You won't find any references to anyone ever being harmed by a TV remote.
by darrellg
Tue Dec 18, 2018 4:03 pm
Forum: Projects
Topic: Yet another Quiz Show button system
Replies: 2
Views: 109

Re: Yet another Quiz Show button system

Yes, the switch operates independently of the lamp.
by darrellg
Fri Nov 30, 2018 10:04 am
Forum: Arduino
Topic: Permanent arduino connection
Replies: 2
Views: 53

Re: Permanent arduino connection

For one-off projects, I generally use a proto-shield of some type, like https://www.sparkfun.com/products/13820. The tension from all of the pins together is pretty secure. Then just solder whatever connection you need directly to the board.
by darrellg
Fri Nov 23, 2018 11:31 am
Forum: Arduino
Topic: Shift Register + Potentiometer
Replies: 2
Views: 70

Re: Shift Register + Potentiometer

The shift register is probably not going to work the way you want it to. You could use something like https://www.sparkfun.com/products/10615.
by darrellg
Tue Nov 20, 2018 4:31 pm
Forum: SparkFun Site Questions/Comments
Topic: small stackableheaders!!
Replies: 1
Views: 161

Re: small stackableheaders!!

I don't think I've ever seen spam links in a quote before.
by darrellg
Tue Nov 20, 2018 4:25 pm
Forum: Arduino
Topic: Motor control
Replies: 6
Views: 143

Re: Motor control

If you don't want to use the connector the power supply comes with, cut it off. Then strip the ends of the wires and insert them in the screw terminals.
by darrellg
Fri Nov 16, 2018 11:05 am
Forum: SparkFun Site Questions/Comments
Topic: Forum search not working
Replies: 5
Views: 646

Re: Forum search not working

I can't fix the forum search, but I do have a tip that might help. Google supports a search operator that allows you to specify a site. For example, if you use

Code: Select all

site:forum.sparkfun.com your search terms here
you'll get results for your search terms that are restricted just to pages from this forum.
by darrellg
Wed Nov 14, 2018 9:55 am
Forum: Arduino
Topic: looking for a certain component
Replies: 2
Views: 159

Re: looking for a certain component

Sparkfun has them listed as SoftPot Membrane Potentiometer.
https://www.sparkfun.com/search/results ... entiometer