Look at My Shiny Crystal Balls - Custom ESP32 PCB With WLED.

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I've got some gorgeous balls - you really have to have a look at them... As always the PCBs used in the video came from www.PCBWay.com....
I got several of these crystal balls for Christmas from AliExpress.
s.click.aliexp...
They are pretty nice, but the default display is pretty basic. The PCB is on the minimal side of things with just three resistors and six LEDs.
So I decided to do an upgrade. I’ve added a ESP32-S3-MINI, a microphone, and support for battery power!
It’s pretty cool - I can now use the amazing WLED software to control my balls!
I’ve put the KiCAD project up here: github.com/ato....
It still amazed me how simple a PCB for an ESP32-S3 module is.
---
If you'd like to help support the channel and help me buy more nonsense - I have a Patreon page: / atomic14
We've also got a shop now! shop.atomic14.com
And if you're shopping on AliExpress or Amazon then if you click on these links I will get a little bit of affiliate money:
Aliexpress - s.click.aliexp...
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You can also join us on Discord here: / discord
There's also the Atomic14 newsletter here: atomic14.subst...
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Опубликовано:

16 окт 2024

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Комментарии : 30

@atomic14 5 месяцев назад

If you'd like to help support the channel and help me buy more nonsense - I have a Patreon page: www.patreon.com/atomic14 We've also got a shop now! shop.atomic14.com And if you're shopping on AliExpress or Amazon then if you click on these links I will get a little bit of affiliate money: Aliexpress - s.click.aliexpress.com/e/_Ac05mF Amazon - www.amazon.com/?tag=atomic14-20 You can also join us on Discord here: discord.gg/h2DDnDdjD2 There's also the Atomic14 newsletter here: atomic14.substack.com/ And don't forget about the MakerNews newsletter - makernews.substack.com/

@TradieTrev 5 месяцев назад

Nicely done! I like your explanation of the circuit design.

@PCBWay 5 месяцев назад

Love the light effects! ✨

@atomic14 5 месяцев назад

Love the PCB! :)

@TheEmbeddedHobbyist 5 месяцев назад

What you need to do now is create a two channel laser so that you can take clear balls and put your own pictures inside. Now that would be fun project, two CO2 lasers should do a nice job on glass balls.

@TheEmbeddedHobbyist 5 месяцев назад

Look Mr silicon I have no wish nor desire to see you ball's shiny or otherwise. That said now I can sit down and watch the rest of the video with a smile in my face.

@Really2950 5 месяцев назад

Looks like it was a really fun thing to do

@raphanunu6912 5 месяцев назад

Anyway, each voltage measure on a white Led will give 3V (approx), this is due to the Zener effect of Leds. Red is 1.4V, green 1.8V etc. What matters is the current, a 1W white Led needs 350mA. This is why you cannot dim a Led simply by changing the voltage, it doesn't work.

@dukedougal16 5 месяцев назад

Chris - is there a way I can make this work with an existing LED light without creating a circuit board? It's a USB light similar to the one under the crystal balls. I'd like to control the light with the voice reactive software but making a PCVB is well beyond my skills. I could however solder in some wires and an esp32.

@atomic14 5 месяцев назад

Might be worth having a look at the WLED docs and joining their discord server - kno.wled.ge/ You can just use a normal ESP32 dev board - just needs wiring up correctly.

@gabrielmartin3107 11 дней назад

que pasaria si usaras tres proyectores laser de los tuyos para proyectar hologramas en una bola de cristal?

@AJB2K3 5 месяцев назад

This video is just balls!

@noweare1 5 месяцев назад

What other device is running the wled code ?

@AndyFletcherX31 5 месяцев назад

You could do source switching by using 2 diodes - one on each input. This way your regulator is powered by the highest voltage source. You would drop a little on the battery diode but this would be minor with a Schottky diode. It is possible you would lose a bit of headroom on the regulator as the battery discharges but the simplicity might win out.

@atomic14 5 месяцев назад

That does work - but the forward voltage on Schottky diodes is surprisingly high once you start passing any significant current - 450-600mV. So with the ESP32 on WiFi and driving LEDs you would quickly run out of headroom from the battery when it’s at its nominal voltage of 3.7v. The MOSFET (provided you pick the right one) will have a much lower voltage drop at the same current.

@richards7909 5 месяцев назад

Nice! But… Can you implement a couple of small motors so the globes rotate too? ;)

@atomic14 5 месяцев назад

That would be pretty nice. I do have a lot of GPIO pins left to play with!

@azyfloof 5 месяцев назад

The nickle plated one has a weird stoney look to it, which makes me think a concrete molded one might look cool :D

@atomic14 5 месяцев назад

That's an interesting idea.

@RupertBruce 5 месяцев назад

On the power circuit, can't D9 be omitted?

@atomic14 5 месяцев назад

You can - but there's a danger of something being connected to the USB, but with power turned off. If that happens the battery voltage will flow into the USB.

@zyghom 5 месяцев назад

LEDs (actually any diode) in parallel is not the best idea because there are no 2 identical ones. So each one will light differently. Rather 1 resistor for each LED. That is me thinking loudly ;-)

@atomic14 5 месяцев назад

This is what I was always told as well. But I think now the accepted wisdom is that manufacturing tolerances are so good now that it's ok. Certainly seems to be the approach in pretty much everything nowadays anyway.

@zyghom 5 месяцев назад

@@atomic14 think what happens when 1 of them shorts... - all go OFF. If they are connected as the "old way" I am talking about, one shorted means 1 is OFF

@fenceup07944931177 5 месяцев назад

A stone effect filiment could look nice, or have a look at the chrome effect powder used for fingernails. Do you have a resin 3D printer? They don't have to be as messy as some make out, and cleaning prints can be as easy as a wipe with a paper towel. Prints look so much better, and are ideal for small shallow objects. You can print multiple objects without increasing print time, just as long as you can fit them on a small build plate. Also using solid infill doesn't increase print time.

@atomic14 5 месяцев назад

I've got access to one - was thinking of doing a couple of prints.