The title might be a bit misleading. The “Laser Light Show” part is not actual. There are no lasers in this project so calm yourselves.
I had nothing to do one day so, I decided to look through my Ramsey magazine for a cool project that I didn't have to buy the kit to build I found an LED chaser schematic and I googled it. There were about 199,000 results and the first one was the exact schematic I was looking for. It had everything from 3 volt astable multivibrators to LED flashers. The website link was http://www.qrp.pops.net/LEDs.asp. It had the Nite Rider chaser so, I built both. I built the one direction one according to the schematic.
At first I didn't follow the order of 3, 2, 4, 7, 10, 1, 5, 6, 9 and 11 causing the LEDs to flash out of sequence. After reorganizing them, they sequentially flashed. I tried all the other circuits. I needed a night light. I saw one at a local dollar store which seemed cool but I felt like I should build my own. I wanted randomized colors that weren't actually random and, the circuit I used was the LED light chaser.
Step 1: Get the Parts
You will need:
4017 decade counter
16 pin IC socket
8 pin IC socket
2 0.01uF ceramic disc capacitors (103)
Assorted values of potentiometers
Assorted values of capacitors
10 LEDs or 3 RGB LEDs (common cathode!!!) and one regular water clear (what I used)
2 2 point terminal blocks
3 pins-breakaway headers ( I used these only for convenience. If compactness is not your goal then use a 3 pin terminal block)
9 volt battery clip
Female Cylindrical plug for other types of power (See image)
Male 9 volt power adapter with male cylindrical plug.
If building nightlight part:
SPDT toggle switch
NPN transistor (I used 2N3904)
150 ohm resistor
Photocell (photo resistor but they are becoming uncommon...Check eBay!)