Step 1: Operate a Traffic Light - Part 1
Once you have your slide switch printed out, it will be used to control the color of the Circuit Scribe traffic light.
As you slide the switch from right to left, the colors change from green to yellow (red and green mixed together) to red!
You will need the following materials:
- A completed Circuit Scribe traffic light template, cut out.
- RGB LED module
- Battery module
Expand the step image to see the traffic light in more detail.
Follow the instructions below and in the following step to complete the traffic light!
- Gather your materials and cut out the traffic light Circuit Scribe template. Be sure to cut along the edges of the fold-over switch portion, and try to cut in a straight line.
- Slide the paper circuit through the BOTTOM notches on the slide switch base. Pull it through until the electrode with a diagonal split is in the frame.
- Fold over the bottom of the switch and slide this end through the TOP notches in the base.
- Continue to the next step.
Step 2: Operate a Traffic Light - Part 2
Next, you will add battery and LED to the template.
Now that the slide switch is assembled, you can slide it back and forth to operate the light!
Notice that there are three stages that the switch naturally locks into:
- Far right (green LED)
- Center (green and red together create yellow).
- Far Left (red LED)
Follow the instructions below for a more detailed description. You can also watch the "Traffic Light" video tutorial to learn how to use it in the City of Lights model!
- Insert the slider into the base, with the ridged side facing up.
- Snap on the battery and RGB LED modules. Make sure the negative (-) terminals of each component are aligned.
- Move the switch into the right, middle, and left positions to change the LED color! Do you feel a slight "click" when you move to each position?
- Finally, you might have to wedge a strip of paper under the slider, just in case the Circuit Scribe switch is not connecting.
- Now you can operate your traffic light!
In the next lesson you will learn about voltage!
Next Lesson:Voltage Park