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Flamethrowing Jack-O'-Lantern

Step 17Wire the transmitter

Wire the transmitter

Solder a wire to one leg of a 10K resistor. Solder the opposite end of this wire to one of the switch terminals.

Plug in the side of the resistor with the wire soldered to it into pin 2 of the Arduino. Connect the other end of the resistor to ground.

Solder a wire to the other terminal on the switch and connect this wire with 5V on the Arduino board.

Lastly, plug your 9V battery connector into the power socket on the Arduino board.

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