IIRC, you can implement a random number generator by measuring the thermal noise across a resistor.
Geiger-Muller tubes are cooler, though.
I wonder, will these work?
[url]http://www.ebay.com/itm/Si3bg-SI3BG-Ci3bg-Geiger-counter-Tube-Detector-New-Tested-/280791170799?pt=BI_Security_Fire_Protection&hash=item4160753eef#ht_500wt_1413[/url]
[QUOTE=VistaPOWA;34493007]Well, you can't predict when I am going to press it.[/QUOTE]
You can predict the number that will be outputtet at a given time
[QUOTE=VistaPOWA;34493099]I wonder, will these work?
[url]http://www.ebay.com/itm/Si3bg-SI3BG-Ci3bg-Geiger-counter-Tube-Detector-New-Tested-/280791170799?pt=BI_Security_Fire_Protection&hash=item4160753eef#ht_500wt_1413[/url][/QUOTE]
Should work fine, although the working voltage is 380-460V so you may need a voltage multiplier for optimum performance.
[QUOTE=VistaPOWA;34492425]
Isn't this like the 7th hobby you took up this month?[/QUOTE]7th hobby this month? Must be referring to another guy?
[QUOTE=dije;34493440]7th hobby this month? Must be referring to another guy?[/QUOTE]
Confused you for Coolity.
[QUOTE=VistaPOWA;34493464]Confused you for Coolity.[/QUOTE]No problems :smile:
Oooh, [url=http://www.cryogenius.com/hardware/rng/]avalanche noise[/url].
That's such a simple little circuit.
Say handsome gentlemen of [i]Electronics and Embedded Programming V2[/i], how much would it cost someone to start this as a hobby? Now how much would it cost a Belgian (that's price times a thousand)?
[QUOTE=Kirth;34495150]Say handsome gentlemen of [i]Electronics and Embedded Programming V2[/i], how much would it cost someone to start this as a hobby? Now how much would it cost a Belgian (that's price times a thousand)?[/QUOTE]
You can get a nice sack of parts for $50 USD, an Arduino or such for about $30. A good (regulated!) iron will run you $50-100. A multimeter you can get for as cheap as $20, but a 'good' one will probably be much more.
So it's like $150 USD minimum.
If you want to take it further than blinking LEDs, then there's a bunch more hardware you'd probably like to have.
An oscilloscope is like $150 used, $400-1000 new, most hobbyists buy used. You may be able to get away without an oscilloscope (I don't own one), but it is definitely a real pain in the ass, and it's difficult to learn/debug when you can't see what's going on. Then there's bench supplies, function generators, and such. Which, again, is something you probably want to have, but I make do without because I'm a broke college student (I use an old AT formfactor supply, some basic linear regulators, and a Wien bridge oscillator I cobbled together from crap I had in my parts bin).
Then there's all the little things. Hook-up wire, fine rosin-core solder, copper scrubbies (or a wet sponge, but I find that to be horribly messy and less effective than a copper cleaning pad), breadboards, proto-board, etc.
[QUOTE=Kirth;34495150]Say handsome gentlemen of [i]Electronics and Embedded Programming V2[/i], how much would it cost someone to start this as a hobby? Now how much would it cost a Belgian (that's price times a thousand)?[/QUOTE]
Depending on what you want to do it shouldn't have to be more than 100 euros to get some stuff.
[QUOTE=dije;34490440]Ordered an Arduino Mega! It will be delivered today or tomorrow! :D[/QUOTE]
But I already have my Uno :v:
I've made an adjustable light sensor with it, using an LDR (of course) and a potentiometer to change sensitivity. The brighter it is, the more of the 6 LED's light up. I didn't have any experience with coding before yesterday, and I like it so far. I've already got ideas for a reaction speed game.
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