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new arduino helmet kit


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i am working on a new project using the arduino microcontroller to give to the stormtrooper helmet new features:

 

- 2x fan brushless cooling blower fan with themperature sensor control

 

- voice amplifier 3w+3w

 

- static burst effect added at the end of talking

 

- loop stormtroopers random talking when idle

 

 

the set includes:

Arduino Nano 328
http://www.ebay.it/itm/200964325858?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 

DHT 11 temperature sensor

http://www.ebay.it/itm/DHT11-DHT-11-Digital-Temperature-and-Humidity-Sensor-Temperature-sensor-Arduino-/400489574221?pt=LH_DefaultDomain_0&hash=item5d3f09ef4d
http://learn.adafruit.com/dht/overview

WT5001M02-28P Mp3 sound module

http://www.aliexpress.com/item/WT5001M02-28P-MP3-Voice-Module-SD-Card-Module/2050529179.html
http://www.microelectronicos.com/datasheets/WT5001.pdf

LM393 Sound sensor
http://www.ebay.it/itm/171219012684?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

d.s. http://www.ti.com.cn/cn/lit/ds/symlink/lm393-n.pdf

(but i think this is better http://www.ebay.it/itm/161245499808?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649  because support the analog reading of sound so i might change to it)

 

2x fans 5volts 0,10 Amp

http://www.aliexpress.com/item/5015S-5V-0-1-0-3A-Black-Brushless-DC-Cooling-Blower-Fan-50x15mm-hv3n/1244855982.html

 

2x NPN transistors 2N2222A (40V 0,8A)

http://www.ebay.it/itm/SALE-New-20-pcs-X-2N2222-2N2222A-NPN-40V-0-8A-Transistor-TO-92-/200964739171?pt=LH_DefaultDomain_0&hash=item2eca6e9063

 

mini amp 3w + 3w
http://www.ebay.it/itm/181303482967?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
d. s. http://diodes.com/datasheets/PAM8403.pdf

 

voltage regulator 5volts 1A

http://cgi.ebay.it/ws/eBayISAPI.dll?ViewItem&item=171178535811

 

the power supply is based on 6xAAA rechargeable batteries (2 boxes linked in serie) for a total of 7.2v (800mAh). I prefer to have the safer nickel–metal hydride (NiMH) batteries inside the helmet rather than lithium ones.

 

this is the actual scheme (not final and not 100% tested)

21200842_helmet_set2_schem.png

 

 

the end project should include 4 small boxes: 2 batteries boxes, 1 box for arduino, 1 box for mp3/amp modules, plus microphone and themp sensor.

 

today i had to stop the work because i realized that i need an external 5v voltage regulator to give enought power to all the components. So i must wait around a month the delivery from china of that component to start again working on it.

 

See you on the next stage (maybe final :) )

 

 

in this picture u can see the themperature sensor (blue) and the fan activated by transistor and arduino

20140326_232951_1.jpg

 

 

the actual stage (arduino nano linked to mini-usb)

20140402_200036_1.jpg

Edited by skyone
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Following with great interest. Anything that would be self contained in the helmet and blows air? Wow!  :th_AnimatedBravoSmiley:  Sign me up now!

What if we have an Echo fan kit as a base since his bracket could neatly hold all the components?

 

Thank you Skyone for your focus and ingenuity! :jc_doublethumbup:

Edited by toybiz
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i worked this days on the project, that is almos finished but now i have another problem to fix

 - i can't use the same microphone of the audio sensor because it hasn't enought gain

-  there is a background noise produced by the fans engines: EMI (Electro Magnetic Interference)

 

so i have to:

- add an external microphone with a pre-amp

- probably add a capacitor to avoid the noise [edit: added 2x 1800uF 6.4v capacitors at fans terminals and noise is gone - i finally used those capacitors that a chinese seller sent me in error instead of leds that i ordered some time ago haha]

 

actual wip

21479370_helmet_kit_arduino_proto.jpg

Edited by skyone
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  • 4 months later...
  • 2 weeks later...

Must be nice to know what you are doing with electronics, I was bamboozled just trying to hook two sets of batteries in series with switches to two fans.

 

 

Sent from my iPad using Tapatalk

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  • 2 weeks later...
  • 1 month later...

Here's another interested follower ;-) any updates?

You did it once with the e11 blaster mod and you will do it again.

We believe in you skyone :-)

 

I'm diggin' in to this myself for weeks now. I'm stuck with the code to trigger a sound file when I end a sentence.

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  • 3 weeks later...

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