Littlebits GIZMOS & GADGETS, Manual

TEST Y

OUR

CIR

CUIT

Now build the 

WIRELESS RECEIVER CIRCUIT.

 This will be the buzzer in your room. Press on 

hook & loop shoes to keep your circuit together.

Cut pieces of the hook & loop strip and stick them to the place you want your doorbell to 

hang. Attach the 

TRANSMITTER CIRCUIT

 to the strips, and place the receiver inside your 

room 

USING THE SAME METHOD

. Stick your battery to the wall with Glue Dots.

REMIX

STUFF 

GUARD

PRIVACY, PLEASE!

 Keep your parents’ or 

siblings’ grubby fi ngers out of your stuff  

by setting up a wireless alarm system. By 

installing the light sensor (transmitter circuit) 

in your drawer, you’ll know that someone 

is looking through your stuff  when your 

buzzer goes off  on your receiver circuit.

MATERIALS

• drawer or secret compartment

• mounting board

 WIRELESS 

DOORBELL

2

3

2

1

You’re going to build two circuits that talk to each other wirelessly. First build your 

WIRELESS TRANSMITTER CIRCUIT

. This circuit will send a signal to the buzzer in 

your room, making it go off .

SET UP YOUR ALARM.

CREATE AN INVENTION THAT KEEPS PEOPLE FROM BURSTING INTO YOUR PRIVATE SPACE!

 Your 

new doorbell will alert you when someone wishes to enter by sending a wireless signal from 

outside the door to the buzzer inside your room. Could you use this system to communicate secret 

messages without your parents knowing? Show us how you’re using the wireless doorbell on our 

community pages.

TIME

20 

min

LEVEL

w22 wireless 

transmitter

p1 power (×2)

battery & cable (×2)

 o6 buzzer

o9 bargraph

a6 hook & loop 

shoes (×6)

i13 light sensor

scissors*

*from around 

the house

1

GUESTS CAN NOW ANNOUNCE THEIR ARRIVAL BY COVERING THE LIGHT 
SENSOR TO "PRESS" THE DOORBELL. 

Try adjusting the sensitivity on the light sensor 

and see if you can get it to detect the shadow of anyone approaching your room.

4

Turn on the power for both 

your circuits and cover 

the light sensor with your 

hand. It should buzz.

TROUBLESHOOTING PG 20

  BARGRAPH  

w22 wireless 

transmitter

i5 slide dimmer

p1 power (×2)

battery & cable (×2)

a9 mounting board 

(×2)

o11 servo & hub

mechanical arm

servo mount

BUILD YOUR PRANK ARM.

 On the 

receiver circuit, assemble the servo 

mount, hub, and mechanical arm using 

a Phillips-head screwdriver.

REMIX

GOLF-O-MAT

You can use your Mischief Machine for 

all kinds of fun – 

NOT JUST PRANKS!

 We 

found it’s great for playing mini golf. Build 

your golf course using some colored paper 

and a paper cup. Can you cook up any 

other ways to use your mechanical arm?

MATERIALS

• ball from caster

•  bottle cap

•  paper cup

NICE TO HAVE

• colored paper

•  toothpick (fl ag)

MISCHIEF 

MACHINE

1

2

3

2

You’re going to build two circuits that talk to each other wirelessly. First build your 

WIRELESS TRANSMITTER CIRCUIT

, which will work as your remote controller, send-

ing its signal to the mechanical arm. Then press it onto a mounting board. 

Remove the ball from the ball 

caster. This is now your golf 

ball! 

PLAY GOLF!

 Line up your new golf putter and swing away wirelessly.

CREATE AN INVENTION TO MAKE YOUR PARENTS SHRIEK, EEK!

 A pair of wireless Bits

™

 and a 

servo help you pull this prank on unsuspecting friends and family while you watch it all go down. 

Wirelessly control the mechanical arm to rustle whatever you put it into – is it a mouse or a mon-

ster? Who knows! Just hope they don’t prank you back.

TIME

20 

min

LEVEL

Phillips-head

 screwdriver*

*from around 

the house

1

PRESS YOUR RECEIVER CIRCUIT ONTO 
A MOUNTING BOARD. 

4

5

Build the second circuit. This will be the

 WIRELESS RECEIVER CIRCUIT 

that will rustle your bag.

Use Glue Dots to stick the bat-

teries onto the mounting board.

The servo hub has two hole 

sizes, the arm will screw into 

the smaller holes.

HIDE THE ENTIRE RECEIVER CIRCUIT INSIDE A CHIP BAG

 and place it wherever 

your unsuspecting victim will fi nd it. Quickly slide the dimmer back and forth 

when you’re ready to scare the daylights out of them!

Turn on the power for both 

your circuits and move the 

slide dimmer to see how it 

wirelessly controls the servo.

TROUBLESHOOTING PG 20

TEST Y

OUR

CIR

CUIT

CUSTOMIZE: WHERE ELSE CAN YOU 
HIDE THE MISCHIEF MACHINE?

Could you stick it in a drawer or 

under your brother’s bed?

LITTLEBITS.CC/GGKIT & THE APP

COMMUNITY CHALLENGE: 

Create a 

full, 

18-HOLE COURSE

 with diff erent 

obstacles and terrain. Mix it up! 

What would a golf course look like in 

the desert or the Arctic? Share your 

landscapes with the community, and 

check out what others have done.

COMMUNITY CHALLENGE: 

Create a 

SECRET LANGUAGE

made of buzzes. Share your lan-

guage on our community pages.

LITTLEBITS.CC/GGKIT & THE APP

CUSTOMIZE:

 This wireless 

alarm can be installed any-

where that’s dark, so why not 

an entire room? 

EXPERIMENT 

WITH DIFFERENT SPACES

 and 

light sensor sensitivities. Know 

when someone walks into a 

room and turns on a light.

COMMUNITY CHALLENGE: HOW LOUD CAN 
YOU MAKE SOMEONE SCREAM? TAKE A VIDEO

of your personalized prank and share it on the 

community page!

Create a sign telling people to 

put their hand over the light sen-

sor to announce their arrival.

INSIDE

OUTSIDE

PRO

TIP

Opening the drawer should set 

off  your buzzer, even if your 

receiver circuit is on the opposite 

end of your house. Busted!

TROUBLESHOOTING PG 20

ADJUST YOUR INVENTION.

Switch the light sensor’s 

mode to

 LIGHT 

and turn the 

SENSITIVITY DIAL ALL THE WAY 
CLOCKWISE

. Any hint of light  

will now trigger an alarm!

w21 wireless 

reciever

w21 wireless 

reciever

  POWER  

  WIRELESS TRANSMITTER  

  POWER  

  WIRELESS RECEIVER  

  BUZZER  

TEST Y

OUR

CIR

CUIT

  WIRELESS TRANSMITTER  

  POWER  

  LIGHT SENSOR  

Set the mode to 

DARK 

and 

turn the sensitivity dial 

ALL THE 

WAY CLOCKWISE

 using your 

purple screwdriver. 

LEARN MORE PG 20

  SLIDE DIMMER  

Make sure the wireless receiver is on 

the 

SAME CHANNEL

 (a,b,c,d, or e) as 

your transmitter.

PAIRING TIP PG 20

Make sure the wireless receiver is 

on the 

SAME CHANNEL

 (a,b,c,d, or e) 

as your transmitter.

PAIRING TIP PG 20

  SERVO  

Glue Dots

®

  POWER  

  HOOK & LOOP SHOES  

  HOOK & LOOP SHOES  

Press on hook & loop shoes to 

keep your circuit together.

screws (×4)

non-metallic

bag/container*

Use a chip bag with a 

non-metallic fi nish. Metallic 

fi nishes may interfere with 

wireless signals, derailing 

your prank.

PRO TIP

hook & loop strip

Glue Dots

®

INVENTION 04

INVENTION 05  

Set your servo to 

TURN

 mode 

to control how and when your 

mechanical arm moves.

LEARN MORE PG 21

  WIRELESS RECEIVER  

SHARE AT 
LITTLEBITS.CC/GGKIT

SHARE AT 
LITTLEBITS.CC/GGKIT

REMIX

REMIX

SHARE

SHARE

SHARE

SHARE

SHARE

PLAY

PLAY

 CREATE

 CREATE

h

ole in

 o

n

e

!

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