USB powered PIR/radar triggered light string.

If you use two 10 ohm resistors in series with a string of parallel LEDs it usually passes enough current to keep the power banks awake while providing bright lights for a good run time.

Big Clive

I bought a few powerbank to power LED lights for Christmas. Soon I learned that they shut down when the LED's draw les than 60-80 mA. That was a real, real, real, disappointment. I was hoping that I could work with 15-20 mA, so they would light up for days. Now I have 5 klass A powerbanks and one cell phone.... So, change of plan and now I use singe 18650 and that works fine. cheap protection strips will provide too much drain of the batteries. Why don't they give the minimum current draw in the specs?

Hub Rijcks

It's one of the few things I couldn't find on eBay. They ended up coming from an AliExpress seller.

Big Clive

Clive: where do you get the USB connectors from? All the ones I've seen on eBay don't have the through-hole pins...

If you score it multiple times with a Stanley (box-cutter) knife, using a steel ruler, you can just break it. You can also remove unwanted fingers, so care is required....

Gordo

Thanks, will do!

If you search my videos for PIR you'll find one that shows how to add the light sensor to the PIR module itself. Many of them have that option available.

Big Clive

Very interesting project, gonna have a go at making this circuit! Any thoughts how easy it would be to combine this with the BC547 type solar rechargeable protected lithium battery dusk sensing LED circuit, so there has to both be low light and movement for the lights to turn on?

So cool. Great project

Michael Thompson

A fine tooth hacksaw or dremel cutting disk works.

Big Clive

ROFL Stink Finger. Time to make a club remix of that one-liner.

Fantastic video Clive, I love the projects. Can I ask which method you would use to cut the circuit board if you didn’t have the guillotine and were just making small numbers of boards? Thanks.

If I was using the drill a lot that would definitely be a good idea on the bench. I tend to remove the bit immediately after use to protect them. The tungsten carbide bits are very easy to breask

Big Clive

maybe try toothpaste thats what i used for nicotine stains when i was a smoker

Steven Cox

Stinkfinger? LOL.

I'd definitely be up for a kit or two, or at least the PCB

Charleso

A piece of pvc plumbing pipe stuck into a piece of wood would make a good holder for your drill. That way you could put it down without risk of breaking the drill bit.

Mark Trombley

I wasn't planning it, but it could.

Big Clive

Is this going to be available as a kit on your store?

Mark Trombley