Create the Gengar using shadows！

Do you like Gengar in Pokemon? Let's use shadows to create one.

Hardware

• Micro:bit V2 * 1
• Newbit Arcade Shield * 1
• Jacdac Rotary Button * 1
• Jacdac RGB Ring * 1
• black opaque cardboard * 1
• A4 paper * 1
• several LEGO bricks

Tools

• utility knife
• scissors
• 3M tape
• transparent tape

Step 1: Create the "Gengar"

Prepare a piece of black opaque cardboard, print out the pattern of Gengar, fix the pattern onto the cardboard, and finally use a craft knife to cut out the Gengar.

Step 2: Making the slide rail and fixing the pattern

Then use LEGO blocks to build a rack with a slide, and fix Gengar to the side that can slide.

Step 3: Writing the MicroCode program

Now let's start programming. The LED will light up in red when the potentiometer is turned to the right, and turn off when turned to the left.

Step 4: Testing the effect and improve it

Testing the effect, it can be found that the shadow is not clear, because the light source is dispersed. We can use black cardboard to cover the other LEDs, assemble the entire device and see the final effect.

Step 5: Final result display

This time the shadow is clear and the size can be adjusted.