Spy Box

by emily_littlebits

Published on October 8, 2015

Having trouble connecting the Bits to the mounting board? Visit here for some quick troubleshooting tips, or contact us at [email protected].

YOU’VE BEEN PROMOTED TO TOP-SECRET SPY! Your mission, should you choose to accept it, is to organize a hand-off with a surprising and dramatic reveal. When your fellow spy picks up the trigger, your secret spy box will open, allowing your partner to get at the stashed goods. This is made possible with wireless Bits™ and a servo that pushes a secret door open.

Duration: 60 minutes

How To Make It

STEP 1 : First build your WIRELESS TRANSMITTER CIRCUIT, which will work as your remote controller, sending its signal to the receiver in the box.

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STEP 2 : BUILD A TRIGGER BOX and place your transmitter circuit within it. Cut out a small hole, and use Glue Dots to stick the light sensor and wireless transmitter to the side with the hole. The light sensor should be facing out of the hole.

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Exposing the light sensor will activate the wireless interaction.

STEP 3 : Build the RECEIVER CIRCUIT. Press it onto a mounting board.

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STEP 4 : BUILD THE MECHANICAL ARM with the receiver and transmitter ON, and the hole of the trigger box COVERED UP. This will set the servo in the correct position for opening the Spy Box. DO NOT screw the servo onto the servo mount.

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STEP 5 : BUILD YOUR SPY BOX. You can use any kind of box that’s at least as long as the mechanical arm.

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STEP 6 : Use Glue Dots and adhesive shoes to ATTACH THE SERVO TO THE TOP OF THE INSIDE OF THE BOX so that the mechanical arm pushes against the top of the flap when triggered. Stick the mounting board to the back of the box using more Glue Dots.

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*Note: Adhesive shoes are one-time use only.


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Turn on the transmitter circuit, close up the trigger box, and set it down with the hole facing down. Turn on the secret compartment, stash your goods, and close it. When you’re ready, ASK YOUR FELLOW SPY TO PICK UP THE TRIGGER BOX. This will wirelessly activate the secret compartment, revealing the hidden goods!


Make your transmitter and compartment LOOK LIKE EVERYDAY OBJECTS. This way, only you and your confidants will know how to access the hidden goods.


Your next mission is to MAKE YOUR OWN SPY MOVIE. Devise a secret mission and ask your parents to film as you act it out. Invite all your friends to the premier! CLICK HERE TO PARTICIPATE IN THE COMMUNITY CHALLENGE.


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By swapping a few Bits and adding some specialty props, you can turn your spy box into a magic trick fit for the stage! CLICK HERE TO LEARN HOW.

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