Classification-Student Step by Step

Let’s Build!

Create and compare two systems where movement is controlled by pressure.

Instructions

Workspace

Instructions

Turn on and pair: ● 1 Pressure Sensor block/virtual Pressure Sensor block ● 1 DC Motor block and drag onto the workspace.

Also drag on: ● 1 Filter block.

Connect the blocks as shown.

Test your system.

Workspace

Remove from the workspace: ● Filter.

Drag onto the workspace: ● 1 Threshold block.

Connect the blocks as shown.

​In the settings of the Threshold, set the ‘True’ value to ‘30’.

​Test your system.

Ⓒ 2019 SAM Labs

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Challenge 1

Create a system to simulate the defining movement of a spider.

Instructions

Workspace

Instructions

​ ut four pipe cleaners in C half.

Workspace

​ ttach the eight pipe A cleaners to 1 Wheel.

​Attach the Wheel to the DC Motor.

​Bend the legs of the ‘spider’ so it stands.

​Test your system.

Ⓒ 2019 SAM Labs

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Challenge 1 – Debug It!

How can we simulate a faster reaction time of the ‘spider’?

Instructions

Workspace

​In the settings of the Threshold, set the ‘True’ value to ‘15’.

Test your system.

In the settings of the Threshold, set the ‘True’ value to ‘75’.

Test your system.

Which Threshold setting simulated a faster reaction?

Ⓒ 2019 SAM Labs

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Challenge 2

Create a modification to the system to simulate the spider’s eyesight and reactions.

Instructions

Workspace

Instructions

​Turn on and pair: ● 1 Light Sensor block and drag onto the workspace.

Workspace

​ ecure the Light Sensor on S top of the Wheel with Blu-Tack​TM​.

​Drag onto the workspace: ● 1 Filter block ● 1 Interval block ● 1 Switch Direction block.

Connect the blocks as shown.

I​ n the settings of the Filter, set to ‘20–49’.

Ⓒ 2019 SAM Labs

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I​ n the settings of the Threshold block, set the ‘True’ value to ‘50’.

​Test your system.

Ⓒ 2019 SAM Labs

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