Start with this circuit: power + pressure sensor + wire + vibration motor + branch +
1.) Long LED
2.) wire + pulse + servo (in swing mode)
3.) Long LED
Find a box to be the dog's body.
Cut piece of cardboard to be the dog's head.
Hot glue the head on the side of the box.
Put hot glue on top of 4 cups.
Place them under the box as feet.
Insert modules into the dog's body.
Cut a hole for the pressure sensor and the power switch.
Tape the servo to the back so it can be the tail.
Poke holes in head for the eyes and the tongue.
Put the long LEDS through the eye holes and the vibration motor through the tongue hole.
Draw and cut out ears, nose, tail, and spots. Glue them onto the dog
Add styrofoam balls to the LEDs.
Tie string with the bell around the neck. The string will help the bell stay in place.
Place the vibration motor inside the bell.
Add a spot over the pressure sensor. This is where you'll pet your dog!
Tape the tail to the servo.
Pet your dog and see it wag it's tail!