Let’s Build!
Create an alarm system for your ‘safe’.
Instructions
Workspace
Instructions
Turn on and pair: ● 1 Light Sensor block ● 1 RGB LED block and drag onto the workspace. Also drag on: ● 2 Compare blocks ● 2 Colour blocks. In the settings of the Compare blocks, set as follows: ● 1st: ‘≥ 30’ ● 2nd: ‘≤ 29’.
Workspace
Connect the blocks as shown.
In the settings of the Colour blocks, set as follows: ● 1st: red ● 2nd: yellow.
Ⓒ 2019 SAM Labs
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Instructions
Workspace
Put the Light Sensor inside your ‘safe’ and the RGB LED outside of it. Test your system.
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Challenge 1
Create a ‘smart safe’ that has a sound alert to confirm that the alarm is on standby.
Instructions
● ●
Workspace
Instructions
Drag onto the workspace: 1 Sound Player block 1 additional Compare block.
Connect the blocks as shown.
Workspace
In the settings of the new Compare block, set to ‘> 3’.
I n the settings of the Sound Player, set to ‘Set Alarm’.
Test your system.
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Challenge 1 – Debug It!
How can I make the alert more effective when the ‘safe’ is opened?
Instructions
Workspace
Instructions
Drag onto the workspace: ● 1 virtual Buzzer.
Workspace
In the settings of the Buzzer, slide the volume down.
Connect the blocks as shown.
●
Drag onto the workspace: 1 Interval block.
In the settings of the Interval block, set to ‘3 seconds’. Test your system.
Connect the blocks as shown.
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Challenge 2
Create an image-capture feature in the system to photograph the intruder opening the ‘safe’.
Instructions
● ●
Workspace
Instructions
Drag onto the workspace: 1 Camera block 1 additional Interval block.
Workspace
In the settings of the Interval connected to the Camera, set to ‘500 milliseconds’.
Connect the blocks as shown.
Test your system.
iew the images in the V gallery on your device. Discuss your system. Define the ‘event’, ‘action’ and the ‘If-Then’ parts in the system.
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