Let's build the interactive painting! First, download the image below and print two copies of it on a color printer.
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Prepare the Background
The second print will be the background of our interactive painting. Let's prep it for use.
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Mount and Frame Backing
Now that the servo is mounted to the frame backing, with the print on the front, we can place it all inside the frame. Lay the mat into the frame, and then place the cardboard.
You can then fold down the metal tabs and get ready to mount the rest of the hardware.
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For the remaining parts:
- Use hot glue to affix the battery pack in place next to the Crickit so it can plug into the power jack
- Connect the two speaker wires to the Crickit's speaker port and screw them in place, then tape the speaker to the cardboard as shown. This provides good resonance for the sound and it will be plenty loud!
- Plug the micro servo into the Crickit's Servo 1 port with the yellow signal wire nearest the outside edge of the board
The circuit is complete!
Add Frame Standoffs
You'll notice that the parts on the back of our painting will prevent the frame from hanging normally. So, we'll attach some scrap wood to push the frame out away from the wall a bit and provide clearance.
Wood Blocks
I used a couple of piece of scrap 1/2" thick plywood roughly 1-1/2" x 6". The 1-1/2" height is enough to allow all of the parts to clear the wall when hung
I glued them in place with high temperature hot melt glue, which works well -- an even stronger method would be to use wood glue and clamps.
I also added a small block of wood for extra support at the top as I used the top piece for hanging. |
While the glue cures, let's program the Circuit Playground Express using CircuitPython!