0TangibleImaginationBest Answer 9 years ago ReplyUpvoteWhile I must agree with TheTrustedOne, the cost of an arduino isn't really all that much (In fact, you can get ones as cheap as $20), I have to admit that I'm terribly cheap myself, and don't mind saving a couple bucks when I can.I was looking for a way to build an embedded AVR device that I could use the (Considerably easier) Arduino programming language with, instead of writing code for the AVR itself. What I found from this site is that all you really need is the appropriate AVR chip (An ATMega168 or ATMega328) a resistor, and a capacitor. (About $5 for the AVR, and a couple cents for the resistor and capacitor.)Of course, to burn the Arduino bootloader to the AVR, and subsequently upload programs to the Arduino, you'll need a programmer and a 6-pin header.Programmers are cheap enough, and you really need one anyway. I have found (And I'm sure most will agree) that LadyAda's USBTinyISP is an excellent choice. (And an excellent value at $22)But again I must echo TheTrustedOne's advice; a DIY stripped-down board may not be the best choice for your first Arduino.Whatever choice you make, have fun!