Blumcaw Cupcake (Blinking, LED, Ultrasonic, Motorized, Cackling, Arduino, Witch) With 3d Printed Parts
Intro: Blumcaw Cupcake (Blinking, LED, Ultrasonic, Motorized, Cackling, Arduino, Witch) With 3d Printed Parts
This old witch has a blinking wart on her nose. If you step too near (as determined by a Ping ultrasonic transducer), she will cackle out a greeting, her hat will spin and her eyes will flash seven colors.
Blumcaw can be made as a "plain old cupcake" without electronics and 3d printed parts if maintaining sanity is important in your household.
STEP 1:
Almond Cupcakes
Preheat the over to 350 degrees F and line a cupcake tin with 12 paper cups.
Ingredients:
¾ cup softened butter
1 ¼ cup granulated sugar
3 eggs
½ teaspoon pure vanilla extract
½ teaspoon of almond extract
1 ½ cup all-purpose flour
½ teaspoon baking powder
½ cup milk
Put softened butter and granulated sugar into a mixing bowl and cream together with an electric mixer until light and fluffy. Add eggs, vanilla, and almond extract. Blend together. Add flour, baking powder, and milk. Mix until the batter is smooth. Fill a cookie scoop with batter and put batter into one cupcake paper. Repeat process until all of the paper cups are filled. Bake for 20 minutes or until the top of cupcake springs back when touched.
Yield: 12 cupcakes
STEP 2:
http://www.thingiverse.com/thing:31224
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To connect the 7 color LED's, take a look at these instructions:
http://www.seanliming.com/Docs/Articles/MSGBB557TA_7_Color_LED.pdf
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STEP 38:
Butter Cream Frosting(for witch’s purple collar)
Ingredients:
1 lb. of 10X confectioner’s sugar
1 stick of softened salted butter
¼ cup milk
2 teaspoons real vanilla extract
red and blue food coloring
Using an electric mix, cream ingredients together until frosting is smooth. Add 6 red drops of food coloring and 4 blue drops and mix together for purple frosting.
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const int pingPin = 7;
long duration;
int ledPin = 13;
int eye = 5;
void setup ()
{
pinMode (ledPin, OUTPUT);
pinMode (eye, OUTPUT);
}
void loop ()
{
digitalWrite (ledPin, LOW);
digitalWrite (eye, LOW);
delay (10);
pinMode (pingPin, OUTPUT);
digitalWrite (pingPin, LOW);
delayMicroseconds (2);
digitalWrite (pingPin, HIGH);
delayMicroseconds (5);
digitalWrite (pingPin, LOW);
pinMode (pingPin, INPUT);
duration = pulseIn (pingPin, HIGH);
if (duration <4000)
{
digitalWrite (ledPin, HIGH);
digitalWrite (eye, HIGH);
delay (10000);
}
else
{
digitalWrite (ledPin, LOW);
digitalWrite (eye, LOW);
}}
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I added this video so that technically curious people could see the entire system in operation. Sensitivity range is around two feet for triggering the cupcake.
Special thanks to my wife for marzipan work and wire pulling :)
5 Comments
The Steph Show 11 years ago
Kitana Kellaway 11 years ago
susanchen2011 11 years ago
iceng 11 years ago
Our toys are the best engineering.
A
jessyratfink 11 years ago