It is time to make good use of the Selenite crystal that has been sitting in my room for ages. I brought the crystal from a collection shop while ago on holiday in Devon for $2. You don't have to use the selenite crystal for this project, you can use any kind of crystal that is transparent or cloudy.
BTW, I am British, I have to use the American currency symbol because instructable dose not like the British currency symbol.
Step 1: What you will need for the project
- Double AA battery holder
- Two AA batteries
- A switch
- A small piece of veroboard
- Some wires
- Transparent or cloudy crystal
- A project box (I ran out of them, so I have to use a container)
- RGB LED's (see next step)
Step 2: About the RGB LED's
I brought 50 RGB LED's from this ebay store for $9, you can buy the LED's from a different seller.
In this project, I used three LED's, and I am going to use the rest for my other project. You can use much LED's as you want for your project,
The RGB LED's has a starting voltage at 3v, so you don't need to use resistors if you are going to power the LED's at 3v.
Also the RGB LED's tends to flicker or 'reset' when they are put in parallel together and being controlled by one resistor. It is a good idea to give every LED's their own resistor to prevent flickering. My LED's did not flicker bad, so I left them without resistor.