TTS Crumble Blog 5 Operating instructions

Brand: TTS

Model: Crumble Blog 5

Type: Operating instructions

TTS Crumble Blog 5 empowers you to create a personalized nightlight using everyday materials and simple coding. With its intuitive interface and step-by-step instructions, you'll transform a cardboard craft roll and corrugated plastic into a charming candle-shaped nightlight. Unleash your creativity by customizing the design with paint, colored gems, and other embellishments to match your unique style.

1 Make a nightlight - Crumble blog 5

www.tts-shopping.com

Crumble blog 5

Product Code: TE10001

Make a nightlight

2 Make a nightlight - Crumble blog 5

Follow this step-by-step guide on how to make a nightlight.

Associated resources:

Crumble lesson plan

Crumble PowerPoint – nightlight

Crumble blog 1 – set up the controller

Crumble workbook 5 – nightlight

You will need:

Parts included in class kit

▪ 1 Crumble controller unit (see Crumble blog 1)

▪ 1 square of corrugated plastic 12.5cm x 12.5cm

▪ 1 cardboard craft roll

▪ 1 strip of corrugated plastic 1.5cm x 39cm (the

corrugations must be across the strip, not along it)

▪ 4 crocodile leads

▪ 1 light sensor (this can be either an LDR [older kits]

or a phototransistor [newer kits])

▪ 1 lamp

▪ 1 lamp holder

▪ 3 card discs

▪ Coloured gems

Other parts, tools and consumables

▪ Paint & paintbrush (optional)

▪ Pair of compasses

▪ Large scissors

▪ Double sided tape

▪ Ruler

▪ Pencil

▪ Cool melt glue gun & glue sticks

▪ Computer (see Crumble blog 1)

Step 1

Paint your craft roll and/or card discs and leave them

to dry (optional).

Step 2

To make the candle holder, use the protractor to mark

out a circular base on the square of corrugated plastic

and cut it out. To make the handle, cut a slot in two of

the card discs and slot them onto the edge of the base,

gluing them firmly in place. Glue the strip of corrugated

plastic around the edge of the base, starting with one

end butted up against the handle. Trim the other end so

that it also butts up against the handle.

Step 3

Take the third card disc and use the

nose of the scissors to enlarge the hole

in the middle until the nose of the bulb

holder can just be pushed in (it should

be a tight fit). To do this, push the nose

of the scissors into the hole and rotate

the scissors to make a smooth round

hole. Trim off any rough edges.

3 Make a nightlight - Crumble blog 5

Step 4

Glue the bulb holder to the card disc. Clip two

crocodile leads firmly to the lamp terminals

(screws) from underneath. Cut a vee 0.8cm long

in the bottom of the craft roll. Feed the crocodile

leads down through the craft roll and glue the

card disc to the top of the craft roll.

Step 5

Tuck the crocodile leads into the vee and glue

the bottom of the craft roll firmly down onto the

base, with the crocodile leads sticking out.

Step 6

Cut a 1.2cm x 1.5cm rectangle from corrugated plastic

offcuts. Use the double-sided tape to stick it onto the

bottom of the light sensor (the side without the

components – see the photos in Step 8). Glue the other

side of the plastic firmly down onto the base. Clip the two

remaining crocodile leads onto the terminals on either side

of the light sensor. Cut notches in the side of the candle

holder and feed the crocodile leads out through them.

Step 7

Connect the two crocodile leads from the

lamp terminals to the Motor 1 terminals on

the Crumble. It doesn’t matter which way

round these are connected. If you have the

2xAA battery holder, clip the battery snap

onto the battery holder terminals. If you

have the 3xAA battery holder, switch it on.

Step 8

Identify whether your light sensor is an LDR or a phototransistor. The components are labelled, and

photos of each are given below.

Phototransistor LDR

Top Top

Bottom Bottom

4 Make a nightlight - Crumble blog 5

Step 9

Connect the two crocodile leads from the light sensor to terminals C and D on the Crumble. If you

have a phototransistor then it is labelled + and -. Connect the + side to D and – side to C. If you have

an LDR then it doesn’t matter which way round it is connected.

Connecting up the Phototransistor Connecting up the LDR

Step 10

Construct and run the following program. This program sets the

output D to high. It then checks if the signal received at C is low and

if so, it switches on the lamp. Cover the light sensor with your hand

and check the lamp lights up. Take your hand away, and the lamp

should go off.

(The light sensor is a component whose characteristics change with

the light level. When light falls on it, it will conduct more easily, so if

D is set to high then C will also be high. If the light sensor is in the

dark then it becomes less conductive, and so C becomes low and

the lamp comes on.)

Step 11

Decorate your candle and candle holder.

Step 12

Switch off (if you have the 3xAA battery holder) or unclip the battery snap from the battery holder (if

you have the 2xAA battery holder) when not in use to avoid draining the battery.

TTS Crumble Blog 5 Operating instructions

TTS Crumble Blog 5 Operating instructions

TTS Crumble Blog 5 Operating instructions

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