Help an electronics newb with his quest to make a cable and learn a little bit about electronics on the way.
So long story short, I bricked my Linksys WRT54G and I'd like to revive it. Doing so requires hooking up a JTAG cable to a 12 pin header on the circuit board. There are plans here
on how to make a cheap and short unbuffered JTAG cable. I'd like to make one but have no electronics experience. So my question is, what parts do I need? Where do I get them?
For instance, the cable will need 4 100ohm resistors. Through some googling I found some people seemed to like digi-key for electronic stuff so I went over there and started looking at resistors. Do I want a carbon resistor...ceramic...etc? I figured carbon since it seemed to be the most common, and filtered to 100ohms. Now I'm faced with the question of what all the other categories mean. The different packages, series, and tolerances I have no idea what to make of. For instance, is 20%..25% tolerance "good enough" for this project? How do I tell? Side adjustment / top adjustment? Someone please make some sense of this stuff for me.
Preferably, someone explain to me what I need and the easiest/cheapest place to get them online way of getting them. I already have access to a soldering iron and basic tools (screw drivers, wire cutters, etc).