@@tk2097 huh. I'd expect 5V to move more than 3.8V, but less than 11V. These fans move a lot of air IMO. Maybe you got a dud?

@@gigiduru8198 hypothetically if you had a 14500 charger and you were planning on popping it out it would at least work for a bit without the board, but the board does the upregulation in voltage, and allows for USB charging of the lion battery, so I'd recommend using the board.

Unknown to me. I used protected 14500s

5V 5015

Of course! www.printables.com/model/592539-gtfo-get-the-fog-out-antifog-goggle-blower

Its a 14500 lion battery advertised at 2500 mAh, probably was less. Never measured full run time at full power. Have mine dialed in to about half power, which kept up with a 90 deg sweaty day at the field for at least 4 hours.

@@electromagics do the PCB heats up when you charging it? Direct?

@@jonathancharlesferriols1208 haven't noticed any heat, the thingiverse page shows the PCBA I used: www.thingiverse.com/thing:5936549

​@@electromagicsyes I have seend the PCB, what is the brand of your battery 14500?

@@jonathancharlesferriols1208 GTL, but any protected 14500 would do

I don't know what a 5v turbo is, but I think what you're discussing would probably work for your purposes. Send it and let me know how it works!

@@electromagics sorry the blower fan is nicknamed a turbo. i was wondering if you measured the output voltage to the fan and if you are using the 5v model.

I'm sorry, I'm unfamiliar with shapeways or what putting this on shapeways would entail. Can you send me a link to more information about this?

Looking into it for a few minutes, it looks like it's gonna be like $100 for a single print of this... If anyone knows how to make this affordable for people let me know. Not interested in running a business selling these units out of my house.

It's just a 3.7V to 5V-12V adjustable step up converter / li-ion USB charger.

SomeoneNamed Me I never made a kit. I used c++ and an attiny microcontroller to read the voltage off of two analog filters (low pass and high pass) with a line follower circuit. Then I used PWM control on some transistor based current drivers for the LEDs and simply changed the hue to respond to the ratio of the two filter volumes, and the saturation and brightness to respond to the overall volume. Hope that helps. It's also called a light organ and lots of tutorials are available for those.

You can buy simple ready made sound to light modules that can be used in a variety of ways. I built a unit with some old sunglasses and some red LEDs which I glued into the glasses two on each side and then run off a 9v battery through the module that has a trimpot to adjust the sensitivity of the microphone that picks up the ambient sounds. I used to wear these glasses to raves and night clubs and people loved them. One party I forgot the glasses and now someone else has them. These sound to light modules are now popular features of many 12v led drivers built in as an extra feature so its even easier these days to build something like this. Ive just bought the minddroid sleep mask which can be used in the same kind of way.

Alpha diallo I never made a kit. I used c++ and an attiny microcontroller to read the voltage off of two analog filters (low pass and high pass) with a line follower circuit. Then I used PWM control on some transistor based current drivers for the LEDs and simply changed the hue to respond to the ratio of the two filter volumes, and the saturation and brightness to respond to the overall volume. Hope that helps. It's also called a light organ and lots of tutorials are available for those.