Hi,
I have zero training, education, or experience in electronics. I am getting more into designing 3d printed products though, and a teenie tiny LED, lit by button battery, and switched on/off by a magnet could be used in so many prints.

My first idea is earrings that light up.

The problem is the price a $2.50-$5 each.

Is this something a person could learn to make at home for a much cheaper cost?

If so, where should I start to learn how?

Link to product I want to make from Bambu Lab:
https://us.store.bambulab.com/products/single-led-magnetic-control-switch-light

Thank you

 

Welcome to AAC.

You can use a reed switch to turn on the LED but you'd need to modify the circuit board (from what I've seen). Since it appears to have a Hall effect transistor on board, to turn it on you'd need a magnet near by. How big? How strong? IDK. But if it's an ear ring it might be heavy and uncomfortable to wear. Good news is if you take it off the light should shut off. However, lose it and it no longer lights up - and chances of finding it are poor.

Another problem with lighted jewelry is that if you use a switch it's possible the user will forget to turn it off. Next time it's worn it might be dead. Then someone's carrying around a heavy piece of jewelry that does nothing. Rechargeable would be the way to go but now you're talking much more expense. The need of a docking station as well as the charge controller on the battery.

 

With magnets to hold the ear ring in place it is not likely to be left on accidentally. And with no electronic experience the TS may be able to COPY an electronic design, but not create one.
In addition, purchasing the components in smaller quantities it is not likely to beat the mass produced price. Just the batteries are not that cheap.

 

With magnets to hold the ear ring in place it is not likely to be left on accidentally. And with no electronic experience the TS may be able to COPY an electronic design, but not create one.
In addition, purchasing the components in smaller quantities it is not likely to beat the mass produced price. Just the batteries are not that cheap.

LR44 cells are readily available for ~$0.07 each in quantities of 200.

 

OK on the availability of cheap battery cells. My observation of retail prices led to my statement.

 

OK on the availability of cheap battery cells. My observation of retail prices led to my statement.

Yes, compared to bulk purchases, retail packaging can be outrageously expensive.

 

With magnets to hold the ear ring in place it is not likely to be left on accidentally. And with no electronic experience the TS may be able to COPY an electronic design, but not create one.
In addition, purchasing the components in smaller quantities it is not likely to beat the mass produced price. Just the batteries are not that cheap.

I'd want to make like 100 of them, so bulk pricing would be fine.

The component on the left of the LED chip is a Hall effect switch right? Because it has 3 prongs. Component to the right, I have no idea.

Then underneath is piece that holds 2 batteries. I would be happy with one battery to be smaller but maybe 2 is required?

Any idea what that unknown part is and it's function?

 

I suggest that before you start to make what you think are copies, that you actually understand what you are wanting to copy.
Consider that you do not know what voltage the LED requires, and what current, how can the TS possibly have a clue how much voltage is required.