Raspofabs
Former 22Cans staff
Posts: 227 
I like: coding, high peat single malts, ... , yeah, that's about it.
I don't like: object oriented design, and liver.
Steam: raspofabs
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Post by Raspofabs on Apr 27, 2015 11:52:59 GMT
I've been playing with Arduinos for a few years, and ran an after-school thing for the people of 22cans for a while so I wasn't alone. It worked out pretty well, but it got me thinking that it was possible to go smaller. An old project I saw someone doing with ATTINY85 chips reminded me that Atmel make lots of different chips, not just the one that goes in the Arduino. Also, some of those chips get really small. For a birthday present, I decided to make a multiple pattern RGB LED single button controlled necklace, and use this tiny chip to power the logic. I've still not completely ironed out the bugs, but the recipient thought the original, though a bit chunky, was pretty cool. I'll get some pictures on here, and follow up with code and "how I fixed the bugs" posts, if I actually manage to fix the bugs. As it is, if you like source code and github, you can see my progress here : github.com/raspofabs/avr/tree/master/tiny85 |
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Lord Ba'al
Supreme Deity
Posts: 6,260
Pledge level: Half a Partner
I like: Cats; single malt Scotch; Stargate; Amiga; fried potatoes; retro gaming; cheese; snickers; sticky tape.
I don't like: Dimples in the bottom of scotch bottles; Facebook games masquerading as godgames.
Steam: stonelesscutter
GOG: stonelesscutter
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Post by Lord Ba'al on Apr 27, 2015 12:57:50 GMT
Yes show us pictures please!
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Post by 13thGeneral on May 2, 2015 14:35:26 GMT
I'm still resisting the Arduino pusher on the corner, trying to get me hooked. I don't have the time or funds, or work space, to dabble... but the urges are making me itchy.
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Post by greay on May 3, 2015 1:06:37 GMT
First soldering iron is free
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Raspofabs
Former 22Cans staff
Posts: 227
I like: coding, high peat single malts, ... , yeah, that's about it.
I don't like: object oriented design, and liver.
Steam: raspofabs
|
Post by Raspofabs on May 4, 2015 18:04:12 GMT
It all started with the idea that I could take one of the really tiny ATTINY85 chips, like this :  And a really small LED, and make a necklace that would display interesting patterns. I couldn't use the normal Arduino stuff for this, and had to use a programmer board made for all sizes. The other slots on this board dwarf this little chip:  After I got it working, there were some bugs in the software that meant I couldn't display with the fading that I wanted, but I got most of the way there, so finished up the necklace:  |
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Raspofabs
Former 22Cans staff
Posts: 227
I like: coding, high peat single malts, ... , yeah, that's about it.
I don't like: object oriented design, and liver.
Steam: raspofabs
|
Post by Raspofabs on May 4, 2015 18:10:01 GMT
the original plan was to use a much smaller LED, which I have, but they are more sensitive.  That little black box in the left corner, that's a 100 ohm resistor attached to the blue anode on one side, and across the red and green on the other. Without it, the red and green LED bits burn out quite quickly. These components are very small. For example, here is a one pound coin next to the LED and the ATTINY85 in it's smaller package form.  Soldering these components is a lot harder than your standard through hole components. |
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Lord Ba'al
Supreme Deity
Posts: 6,260
Pledge level: Half a Partner
I like: Cats; single malt Scotch; Stargate; Amiga; fried potatoes; retro gaming; cheese; snickers; sticky tape.
I don't like: Dimples in the bottom of scotch bottles; Facebook games masquerading as godgames.
Steam: stonelesscutter
GOG: stonelesscutter
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Post by Lord Ba'al on May 4, 2015 18:19:35 GMT
Now all we need is a video of the necklace in action.  |
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Raspofabs
Former 22Cans staff
Posts: 227
I like: coding, high peat single malts, ... , yeah, that's about it.
I don't like: object oriented design, and liver.
Steam: raspofabs
|
Post by Raspofabs on May 5, 2015 8:23:03 GMT
Now all we need is a video of the necklace in action. To come, I can do a video of the first one, but I also want to finish making the second (much smaller one) before making a final "in action" video. (also, I have to get the necklace back off the recipient to make a video) |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 28, 2015 22:53:14 GMT
This has most likely been on your radar for some time, but heck, Circuit Scribe |
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