Run away solder

Tired of solder that wont stick to the wire?

Does your solder just drop from the wire? (even when you finally tricked a drop into the wire...)

Do not despair! The solution is here!

Just make sure the wire is hot before you try to melt some solder on it and your troubles will be over!

Twinkle twinkle litle LED

This is a project form "Getting Started with Arduíno", or at least the main idea was from there.
The goal is to make a LED blink according to the light.

This is what it will look like:


Components:
1 Arduino Duemilanove
1 breadboard
1 LDR
1 Resistence of 10 k ohms +/- 5%
3 wires
1 USB/Arduino cable
1 computer

This is my pseudo-schematic:


Here is my code for this project:

// Light sensitive LED

int val = 0;

void setup(){
pinMode(13, OUTPUT);
}

void loop(){
val = analogRead(0);

digitalWrite(13, HIGH);
delay(val);

digitalWrite(13, LOW);
delay(val);
}

If all goes well you should end up you a project looking like this: