Programming a breadboard Arduino with Sparkfun’s FTDI Adapter

I required a programmer to program bare AVRs (ATtiny85s and ATtiny84s,) so, In my infinite spendthriftyness, I bought this FTDI breakout from Sparkfun. What is this? Well, I assumed it was an AVR programmer. I was incorrect. It can reprogram AVRs, however it cannot burn bootloaders or change fuse settings as is (the version from ladyada can, and with precious little modifications.) Being the same price, I made the wrong choice.

Anywho, here’s how you get it to work. I also ordered (fortunately) a ATmega328p from Sparkfun with the Optiboot Bootloader. So, essentially, it’s like they yanked the chip out of a new Arduino Uno. Not bad for $5.50. So we take this, plink it down on a breadboard like shown below, then get to wiring it up.

Don't worry, this will all be explained after the break.

One hell of a ratsnest. Don't worry, this will all be explained after the break.


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