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Shrinked TV b gone
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Shrinked TV b gone

by lyczewskiand on Sat Aug 15, 2015 2:07 pm

Hello and welcome.
I wonder if I could shrink this tv-b-gone v1.2 https://learn.adafruit.com/tv-b-gone-kit/parts-list
to make it as small as possible to fit inside keychain flashlight http://www.clickonway.com/wp-content/uploads/2014/12/GIZMOBABA-GB62-Mini-Solar-Powered-Rechargeable-3-LED-Flash-Light-Torch-Keychain-Key-Chain-0.jpg
I would like to use SMD transistor.
only 2 IR LEDs driven by one transistor (what should i do with unconnected pins? connect them to ground?)
no indicator green LED (leave unconnected pin or connect to GND?)
Use internal uC oscillator which is quite accurate?

Regards

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Re: Shrinked TV b gone

by adafruit_support_bill on Sat Aug 15, 2015 2:51 pm

You should be able to shrink it considerably with just a 2-led output.. Leave the unused pins unconnected. Don't connect them to ground.

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Re: Shrinked TV b gone

by lyczewskiand on Sat Aug 15, 2015 5:53 pm

Maybe i will find way to disable those pins in source code ;)

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Re: Shrinked TV b gone

by franklin97355 on Sat Aug 15, 2015 6:01 pm

Maybe i will find way to disable those pins in source code ;)
You don't need to do anything with the pins, just don't use them and make your board smaller.

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Re: Shrinked TV b gone

by lyczewskiand on Sat Aug 15, 2015 6:18 pm

Thanks a lot for your respond.
Now i need to collect all items and probably I will post my device here.

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Re: Shrinked TV b gone

by lyczewskiand on Sun Aug 16, 2015 8:50 am

franklin97355 wrote: You don't need to do anything with the pins, just don't use them and make your board smaller.

Do you know how to change source code to use internal uC oscillator? Or it is only a matter of leaving fusebits to use internal clock oscillator because maybe (i don't know) program already has a "#define #define F_CPU 8000000UL" ?

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Re: Shrinked TV b gone

by lyczewskiand on Thu Sep 03, 2015 6:21 am


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Re: Shrinked TV b gone

by adafruit_support_bill on Thu Sep 03, 2015 6:24 am

Nice build! I don't think I've ever seen one quite that small.

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Re: Shrinked TV b gone

by lyczewskiand on Thu Sep 03, 2015 12:03 pm

I used this 3 led keychain
http://imgur.com/a/khotS

I designed a pcb to match with button placement.

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Re: Shrinked TV b gone

by relaxing on Fri Sep 04, 2015 2:10 pm


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Re: Shrinked TV b gone

by lyczewskiand on Sat Sep 05, 2015 9:26 am

Didn't know that someone would pay 200$ for that.
Thread is 3 years old :D

And i cannot post a comment that I've made one :D

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Re: Shrinked TV b gone

by adafruit_support_bill on Sat Sep 05, 2015 11:49 am

Your build in featured on the blog: https://blog.adafruit.com/2015/09/04/fr ... -keychain/

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Re: Shrinked TV b gone

by lyczewskiand on Sat Sep 05, 2015 5:23 pm

adafruit_support_bill wrote:Your build in featured on the blog: https://blog.adafruit.com/2015/09/04/fr ... -keychain/

WOW. Thanks ;) Can i get some promo or free items for featured project :D ?
I posted it on Instructables. If you don't mind I'll post link here http://www.instructables.com/id/TV-B-Gone-Keychain/ It's featured :)
It's almost 5k views and over 100+ favourites

EDIT___________________
Look at my friends' project http://mdiy.pl/latarkowy-tv-b-gone-duzej-mocy/?lang=en
This is INSANE!!!

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