Madhurig at 10:38, 21 October 2025

2025-10-21T10:38:29Z

Madhurig at 10:34, 21 October 2025

2025-10-21T10:34:08Z

Nirmala Venkat: Created page with "{| border="1" |- || '''Visual Cue''' || '''Narration''' |- ||
Show Slide:

'''Title Slide'''
|| Welcome to..."

2025-10-10T07:58:39Z

Created page with "{| border="1" |- || '''Visual Cue''' || '''Narration''' |- || <div style="color:#000000;">Show Slide: </div> <div style="color:#000000;">'''Title Slide'''</div> || Welcome to..."

New page

{| border="1"
|-
|| '''Visual Cue'''
|| '''Narration'''
|-
|| <div style="color:#000000;">Show Slide: </div>

<div style="color:#000000;">'''Title Slide'''</div>
|| Welcome to the '''Spoken Tutorial''' on '''Ultrasonic Sensor''' using '''Electroblocks'''.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide 2'''

'''Learning Objectives'''
|| In this tutorial, we will learn to,
# <div style="margin-left:1.27cm;margin-right:0cm;">Build a set of blocks for '''Ultrasonic sensor''' to detect an object in its range</div>
# <div style="margin-left:1.27cm;margin-right:0cm;">Check the output of the experiment using the simulator</div>

|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide 3'''

'''System Requirements'''

|| To record this tutorial, I am using<span style="color:#000000;"> the following setup: </span>
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Slide 4:

Prerequisite

|| To follow this tutorial,learner should have a basic knowledge of
* <div style="margin-left:1.27cm;margin-right:0cm;">Electroblocks </div>

|- style="border:1pt solid #000000;padding:0.176cm;"
|| Type

https://electroblocks.org/
|| Let us open the '''ElectroBlocks''' website in the chrome browser.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Only narration
|| Let us open a new blank project.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide:5'''

Required section
* <div style="margin-left:1.27cm;margin-right:0cm;">Logic</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">Motion</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">LED</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">Time</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">Math</div>

|| We will need the following secti<span style="color:#000000;">ons f</span>or this experiment.
|- style="border:1pt solid #000000;padding:0.176cm;"
||
|| Switch back to the '''Electroblocks''' interface.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Show '''Circuit Diagram.png'''

|| This is the circuit diagram of an ultrasonic''' sensor''' experiment.

Here, when an object comes in the defined range of the sensor the buzzer is turned ON.

Otherwise the buzzer is turned OFF.

|- style="border:1pt solid #000000;padding:0.176cm;"
||
|| Let us build this circuit using '''ElectroBlocks'''.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Keep the loop block in the middle area '''

Click on the Logic section

Point to if-then-else block
|| Click on the '''Logic''' section.

Drag the '''if then else''' block and place inside the '''loop''' block.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Narration

Click on the '''Sensors''' section
|| Now we will add an '''Ultrasonic sensor block.'''

Click on the '''Sensors''' section and Click on the '''Motion'''.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Select the '''Setup Ultrasonic Sensor '''block and drag it in the working area.

Point to the '''Setup Ultrasonic Sensor '''block.
|| Select the '''Setup Ultrasonic Sensor '''block and drag it to the working area.

The '''Setup Ultrasonic Sensor '''block is used to configure the '''Ultrasonic sensor '''in the circuit.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Point toward trigger pin and echo pin.

Point toward trigger pin

Point towards echo pin

|| I<span style="color:#000000;">n the </span><span style="color:#000000;">'''setup'''</span><span style="color:#000000;"> </span><span style="color:#000000;">'''block, '''</span><span style="color:#000000;">the </span><span style="color:#000000;">'''trigger'''</span><span style="color:#000000;"> pin and </span><span style="color:#000000;">'''echo'''</span><span style="color:#000000;"> pin are used for distance measurement.</span>

<div style="color:#000000;">'''Trigger''' pin emits ultrasonic sound waves.</div>

<div style="color:#000000;">'''Echo''' pin receives the ultrasonic waves reflected from any object in its range.</div>
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Point to '''trigger''' pin and '''echo''' pin

|| Here, the '''trigger''' pin and '''echo''' pin are connected to '''pin 11 and 10 '''of the Arduino.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Only narration

Point towards the number box
Click on the number box and change it to 5.

Point to simulation window

Point to the red rectangular box in front of the sensor.
|| We can change the distance by clicking on the '''Distance in Centimetre''' box.

Click on the box and change the value to '''5.'''

Check the '''Copy All''' checkbox.

This setting will set the distance of the object to 5 centimeters for all the 3 loops.

In the simulation window, the '''5''' cm distance is displayed on the ultrasonic sensor.

Here the object is shown as a red rectangular box in front of the sensor.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Only narration

Click on the '''logic''' option

Select the''' (=) block''' and drag in the working area.

Place the block in the '''if '''section of''' if then else block.'''
|| We need a '''comparison''' block.

Click on the '''logic''' section.

The third block represents the comparison block.

Drag the''' comparison''' '''block''' and place it in the''' if '''section''' '''of the '''if then else block.'''

This will compare the distance value of the object from the sensor.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Only narration

Click on the '''Motion''',select distance (cm) block.

Place this block in the '''first section '''of the '''logic''' block.

Point to dropdown option

Click on the dropdown option and select '''less than''' '''equal to''' option from the list.
|| Let us add a '''distance '''block'''.'''

Click on the '''Motion'''.

Drag the '''distance(cm)''' block and place this block in the '''first section '''of the '''comparison''' block.

Click on the dropdown option and select '''less than equal to '''option from the list.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| click on the '''math''' option available on the left side on the screen.

|| Next,<span style="color:#ff0000;"> </span>click on the '''Math''' section.

We will add the distance value.

Drag and place the first '''number''' '''block''' next to the '''less than equal to '''option.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Click on the '''number''' block and change to 10.
|| Click on the '''number''' block and change to 10.
|- style="border:1pt solid #000000;padding:0.176cm;"
||

Click on the''' LED '''option.

Select the '''Turn a LED '''block.

Place the block in the ‘'''then’''' section of the '''if then else '''block.
|| Next let us add a '''Buzzer '''to the circuit.

Click on the '''Add-ons''' and click on the '''Passive Buzzer'''.

Drag and drop the '''Turn Passive buzzer''' block to the '''then''' section of the '''if then else''' block.

By default the '''Buzzer '''is '''ON '''and connected to pin 9 of the '''arduino.'''

|- style="border:1pt solid #000000;padding:0.176cm;"
|| Right Click on the''' Turn a LED '''block and select the duplicate option.

Place this new block in the '''else''' section of the '''If then else''' block.

Click on the dropdown option in the''' Turn Passive LED '''block''' '''and select the "'''Off'''" state.
|| Right click on the''' Turn Passive buzzer '''block and select the duplicate option.

Place this new block in the '''else''' section of the '''If then else''' block.

Change the state of the Buzzer to '''OFF''' from the dropdown option.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Click on the '''Code''' icon to view the auto-generated Arduino code for the experiment.

Highlight the code on right side
|| Click on the '''Code icon''' to view the automatically generated''' Arduino code'''.

The code includes self-explanatory''' comments''' for better understanding.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Click the '''Home''' icon and press the '''Play button''' to start the simulation.

Zoom and show the simulation area

Highlight hand symbol and '''pressed''' word

|| Click on the '''Home''' icon and press the '''Play button''' to start the simulation.

We can see the '''Buzzer''' is turned ON.

In the block we have specified the distance as 5cms and the range is less than 10 which is true.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| Only narration

Point towards '''Setup Ultrasonic sensor '''block.

Point towards '''Distance in the Centimeter''' box.

Click on the box and change the value to '''20'''

Point towards the simulation window.

Point to square box.drag this square box to the start point of the simulation.
|| Let us change the distance value and check the simulation output.

In the '''Setup Ultrasonic sensor''' block, change the distance to 20 Centimeters.

In the simulation window, note that the object has <span style="color:#000000;">moved</span> to 20cms.

Let us simulate and see the output again.

Drag the box above the play button to the start position.

|- style="border:1pt solid #000000;padding:0.176cm;"
|| Click on the play button

Point to OFF state

|| Click on the '''Play''' button to see the output.

Notice that the '''Buzzer '''remains in OFF state as the distance is above 10cms.

|- style="border:1pt solid #000000;padding:0.176cm;"
|| Narration only
|| The '''XML '''file of this experiment is provided in the code files for your reference.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide 6:'''

'''Summary'''

In this tutorial, we learnt about,
# <div style="margin-left:1.27cm;margin-right:0cm;">Build a set of blocks for Ultrasonic sensor to detect an object in its range</div>
# <div style="margin-left:1.27cm;margin-right:0cm;">Check the output of experiment using simulator</div>

|| This brings us to the end of this tutorial. Let us summarise.
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide 7 :'''

'''Assignment''':
* <div style="margin-left:1.27cm;margin-right:0cm;">Turn '''ON the Buzzer '''when the ultrasonic sensor detects a distance equals to 10 cm.</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">Turn '''OFF the Buzzer '''if it is not 10 cms.</div>

|| As an assignment, please do the following
|- style="border:1pt solid #000000;padding:0.176cm;"
|| '''Slide 8: Thank You'''
|| Thank you for joining.
|-
|}

@@ Line 259: / Line 259: @@
 # Check the output of experiment using simulator
-|| This brings us to the end of this tutorial. Let us summarise.
+|| This brings us to the end of this tutorial.
 |-
 || '''Slide 7 '''
@@ Line 265: / Line 267: @@
 '''Assignment''':
 * Turn '''ON the Buzzer '''when the ultrasonic sensor detects a distance equals to 10 cm.
-* Turn '''OFF the Buzzer '''if it is not 10 cms.
+* Turn '''OFF the Buzzer '''if it is not 10 cm.
 || As an assignment, please do the following.

ElectroBlocks/C2/Ultrasonic-Sensor/English - Revision history

Madhurig at 10:38, 21 October 2025

Madhurig at 10:34, 21 October 2025

Nirmala Venkat: Created page with "{| border="1" |- || '''Visual Cue''' || '''Narration''' |- || Show Slide: '''Title Slide''' || Welcome to..."

Nirmala Venkat: Created page with "{| border="1" |- || '''Visual Cue''' || '''Narration''' |- ||
Show Slide:

'''Title Slide'''
|| Welcome to..."