Hello.

My name's Mrs. Taylor and I'm really pleased you can be here to join me for our lesson today.

Our lesson today is integrate a micro:bit into a wearable product, and this is part of the unit Functional prototypes: wearable technology.

The outcome.

I can integrate a micro:bit into a wearable technology product and plan the manufacture.

There are three key words.

Pattern piece, which is a cut-out template used to cut fabric pieces.

Parts list, which is a list of all the materials and components required to make a product.

And integrate, which means to combine one or more components.

We have two parts to the lesson today.

The first is development and the second is planning for manufacture.

Let's begin with development.

Sam shares his design brief.

"I am going to design a wearable device for young children that lights up automatically.

It could be attached to the child's coat or book bag.

It will be used when walking to and from school in the dark.

The light will make sure that other people can see the child, which is really important when crossing the busy road near our house.

" When designing to integrate a control system, you must begin by identifying all the components to be included.

Integrate means to combine one or more components.

Sam has identified the components he needs to include, the micro:bit and the portable battery pack.

Before we can plan the device, we need to measure the components.

All dimensions are in millimetres.

The micro:bit is 53 millimetres by 42 millimetres by 12 millimetres, and the portable battery pack is 53 millimetres by 25 by 15.

Here we have a check for understanding.

To combine one or more component is to A, initiate, B, intimate, or C, integrate.

Pause the video and have a go.

Wonderful.

Let's check.

That's right.

It's C, to integrate.

Well done.

Next we think about the function of the device.

Sam shares his initial thoughts.

The micro:bit and battery pack must be accessible to allow for changing and reprogramming.

The LEDs on the micro:bit must be visible.

The electronic components must be protected as the device will be used when travelling.

A solid case would need fabric straps to attach it.

A fabric pouch would need a clear window to show the LEDs and also some padding to protect the micro:bit and the battery pack.

Here is a CAD model for a case that can be 3D printed.

This is the top view and the front view.

And here we can see the side view.

And now we can see an isometric view.

Sam chose to use a CAD model, which he then used to 3D print a case.

The components are integrated by being slotted in place.

They are a push fit, which means they are pushed into place without the need for tools.

The battery pack slots here and the micro:bit slots at the front.

And here we can see the 3D printed case with both the battery pack and the micro:bit added.

The LEDs on the micro:bit are visible from the front.

Here we have a check for understanding.

There are four images and four labels.

Can you match the image with the correct label?

Pause the video and have a go.

Wonderful.

Let's check.

The first one is an isometric view.

The second is the top view.

The third the side view.

And the fourth is the front view.

Well done.

We now move to task A.

Part one, read your design brief.

Part two, list the different components to be integrated.

Part three, measure each component and record the dimensions.

And part four, consider the function of your device and decide how you will integrate all the components.

Record your decision using sketches, words, or a combination.

Check the success criteria to ensure you have included all the details.

The success criteria are which components are to be integrated, what other dimensions of the components, how to protect the electronic components, and how to access any inputs or outputs.

Pause the video and have a go.

Fantastic.

Let's have a look at some of the answers you may have come up with.

Sam's design brief says, "I am going to design a wearable device for young children that lights up automatically.

It could be attached to the child's coat or book bag.

" And he identified that the micro:bit and a portable battery pack are the components which need to be integrated.

For part three, he measured each of the components and added the information to a table to show the length, width, and depth of each one.

And part four, he used the success criteria to check his design and decisions had been recorded, including which components are to be integrated, what are the dimensions of the components, how to protect the electronic components, and how to access any inputs or outputs.

Well done.

We now move to part two, planning for manufacture.

Once you have designed your device, it is important to develop the design to ensure it will be successful.

Sam considers some questions he has about his design.

"How will I attach the case to the child, their clothes or their bag?

" Sam conducted some primary research.

He measured the different places the device could be attached.

He measured a strap on the front of a backpack and the backpack shoulder strap, a coat sleeve, and a lunch bag handle.

On the case Sam is using, there are several slots which could be used to attach the strap.

We can see them here on the top view and the side view.

Sam uses paper to model his ideas.

The yellow paper model fits through the wider slots at the bottom of the case, and the pink paper model fits through the narrower slots at the side of the case.

Here we have a check for understanding.

Primary research is A, measuring items, B, carried out by the researcher, C, read on the internet, or Dm carried out by someone else.

Pause the video and have a go.

Fabulous.

Let's check.

That's right, it's B, carried out by the researcher.

Well done.

The measurements range from 120 millimetres to 260 millimetres and Sam has recorded this in a table.

He then says, "I have decided to design my device to attach to a backpack or lunch bag.

The coat sleeve needs a much larger strap, which would be too long when used on a backpack or lunch bag.

" Sam made a paper pattern piece for his strap, which is a cutout template used to cut fabric pieces.

The success criteria are the correct size to attach to the case and backpack or lunchbox, overlap for fastening method added, and a seam allowance added.

Here we can see that we have the correct size to accommodate both the 120 from the front of the backpack or lunch bag handle, and 160 millimetres to accommodate the shoulder strap of the backpack.

There is an overlap for a fastening method to be added and a seam allowance, which is the extra fabric between the seam line and the edge of the fabric, which allows two pieces to be sewn together.

Here we have a check for understanding.

A seam allowance is A, the cost allowed, B, extra fabric to allow for mistakes, or C, extra fabric to allow pieces to be sewn together.

Pause the video and have a go.

Fantastic.

Let's check.

That's right, it's C.

A seam allowance is extra fabric to allow the pieces to be sewn together.

Well done.

Sam then made a parts list of all the components he would need to create the strap to attach the case.

Sam showed all of his components and dimensions and details in a table.

He needs polyester mesh fabric, which will be orange in colour and 200 by 45 millimetres in size.

He needs some hook and loop fastening, which will be black in colour and 60 by 20 millimetres.

And he will need thread in both orange and black.

We now move to task B.

Part one, measure the different places your device could be attached.

Part two, plan your design using paper models.

Part three, identify the success criteria for your design.

Part four, create a paper pattern piece for your design using your success criteria.

And part five, create a parts list for your design.

Pause the video and have a go.

Wonderful.

Let's have a look at some of the answers you may have come up with.

You may have recorded the measurement for the different places your device could be attached using a table.

For example, the front of the backpack measures 120 millimetres.

The backpack shoulder strap is 160 millimetres.

The coat sleeve was 260 millimetres and the lunch bag, 120 millimetres.

For part two, Sam made two paper models for his design ideas.

Part three, identify the success criteria for your design.

Your answers may be something similar to this.

The correct size to attach to the case and backpack or lunchbox.

Overlap for fastening method added.

And seam allowance added.

And for part four, create a paper pattern piece for your design using your success criteria.

And here we can see that this paper pattern piece has got the correct size to accommodate both 120 and 160 millimetres.

It has the overlap for the fastening method and the seam allowance.

And part five is to create a parts list for your design.

Here we can see polyester mesh fabric 200 millimetres by 45 millimetres and orange in colour is required.

Hook and loop fastening 60 millimetres by 20 millimetres.

Black in colour is required.

And thread in both orange and black is required.

Well done.

We now move to a summary of our learning today.

When designing to integrate a control system into a device, we must consider the different components to be included, the size and function.

Integrating a control system into a device requires planning.

Using a paper pattern piece for textiles products allows you to test the design to ensure the size and positioning are correct.

A parts list identifies all the different components and materials required.

I'm really pleased you could join me for our learning today.

Thank you and well done.