[BlocksExtension]

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read digital sensor () at ()

Description

Read digital sensor () at () block is a reporter block available in sensors extension for evive and all Arduino boards. The block reports the digital state of the digital sensor, connected to the selected digital pin.

Available pins in evive: 26 digital pins available for the user (2-27)
Available pins in Arduino Mega: 52 digital pins available for the user (2-53)
Available pins in Arduino Uno: 12 digital pins available for the user (2-13)
Available pins in Arduino Nano: 12 digital pins available for the user (2-13)

Available digital sensors:

IR proximity sensor
Touch sensor
PIR motion detector
Soil moisture sensor
Hall effect sensor
Generic digital sensor

Note: This block is available in both Upload mode and Stage mode.

Example

Displaying the reading of the digital sensor on TFT display of evive.

Example

Touch Piano

The example demonstrates using the Quarky touch display to make touch piano.

Script

Output

Touch-Numbers

Dance Party

The example demonstrates how to run different actions with the Quarky touch sensor to make a disco party in PictoBlox.

Script

Output

Ultrasonic Sensor with Quarky

The example demonstrates how to use an ultrasonic sensor with Quarky.

Connections

Now we will connect the Ultrasonic Sensor to the Robot. The sensor and the robot have the following pins:

Ultrasonic Sensor Pins:
1. VCC
2. GND
3. Trig
4. Echo
Quarky Pins:
1. GND
2. V
3. D1
4. D2

We will start with connecting the ultrasonic sensor with Quarky using the 4 set wire provided in the kit. But, first, make the connection in the following way:

First, connect the VCC of the ultrasonic sensor with the V pin on the Quarky.
Connect the GND of the ultrasonic sensor with the Ground pin on the Quarky.
Connect Trig of the ultrasonic sensor with D1 pin on the Quarky.
Finally, connect the Echo of the ultrasonic sensor with the D2 pin on the Quarky.

Script

Output

Tobi Movement with Buttons – Python

The example demonstrates how to make the sprite movement with Quarky buttons.

Code

sprite = Sprite('Tobi')
quarky=Quarky()

while True:
  if quarky.readpushbutton("L"):
    sprite.move(-10)
  elif quarky.readpushbutton("R"):
    sprite.move(10)

Output

Touch Piano – Python

The example demonstrates using the Quarky touch display to make a touch piano in the Python Coding Mode.

Code

sprite = Sprite('Tobi')
quarky = Quarky()

while True:
  if quarky.ispadtouched("T1"):
    quarky.drawpattern("bbbjjbjjbjjbbjjbjjjbjjbjjjbjjbjjbbb")
    quarky.playtone("C4", 8)

  if quarky.ispadtouched("T2"):
    quarky.drawpattern("cccjcccjcjjjjcjcjjcccjcjjcjjjcjjccc")
    quarky.playtone("D4", 8)

  if quarky.ispadtouched("T3"):
    quarky.drawpattern("fffjfffjfjjjjfjfjjfffjfjjjjfjfjjfff")
    quarky.playtone("E4", 8)

  if quarky.ispadtouched("T4"):
    quarky.drawpattern("dddjdjdjdjjdjdjdjjdddjdjjjjdjdjjjjd")
    quarky.playtone("F4", 8)

  if quarky.ispadtouched("T5"):
    quarky.drawpattern("gggjgggjgjjgjjjgjjgggjgjjjjgjgjjggg")
    quarky.playtone("G4", 8)

Output

Ultrasonic Sensor with Quarky – Python

The example demonstrates how to use an ultrasonic sensor with Quarky.

Connections

Now we will connect the Ultrasonic Sensor to the Robot. The sensor and the robot have the following pins:

We will start with connecting the ultrasonic sensor with Quarky using the 4 set wire provided in the kit. But, first, make the connection in the following way:

First, connect the VCC of the ultrasonic sensor with the V pin on the Quarky.
Connect the GND of the ultrasonic sensor with the Ground pin on the Quarky.
Connect Trig of the ultrasonic sensor with D1 pin on the Quarky.
Finally, connect the Echo of the ultrasonic sensor with the D2 pin on the Quarky.

Code

sprite = Sprite('Tobi')
quarky = Quarky()

quarky.setultrasonicpins(1, 18, 19)
while True:
  sprite.say(quarky.getdistance(1))

Output

Dance Party – Python

The example demonstrates how to run different actions with the Quarky touch sensor to make a disco party in Python Coding Environment.

Code

sprite = Sprite('Cassy Dance')
quarky = Quarky()

import time

sprite.switchcostume('cassy-a')
sprite.gotoxy(0, 0)

while True:
  if quarky.ispadtouched("T1"):
    quarky.playsound("QuarkyIntro")

  if quarky.ispadtouched("T2"):
    quarky.showpattern("party colors")

  if quarky.ispadtouched("T3"):
    time.sleep(0.2)
    sprite.nextcostume()

  if quarky.ispadtouched("T4"):
    quarky.stopaudio()

Output

Biodegradable vs Non Biodegradable Waste

A waste management system that will differentiate the waste based on its type. If it detects biodegradable waste, the LEDs Quarky’s matrix will turn green. If it’s non-biodegradable waste, the LEDs will turn blue.

Script

Output

Object Detection on Stage

The example demonstrates how to run an object detection on the stage and show all the objects with confidence.

Script

Output

Detection at 0.3
Detection at 0.5
Detection at 0.8

Threshold Demonstration – Person Detection

The example demonstrates how to detect persons on the stage with different confidence thresholds.

Script

Output

Waste Classifier – Python

A waste management system that will differentiate the waste based on its type in Python Coding Environment. If it detects biodegradable waste, the LEDs Quarky’s matrix will turn green. If it’s non-biodegradable waste, the LEDs will turn blue.

Code

sprite = Sprite('Tobi')
od = ObjectDetection()
speech = TexttoSpeech()
quarky = Quarky()

od.video("on", 1)
od.enablebox()
od.setthreshold(0.5)

speech.setvoice('alto')
speech.setlanguage('en')

while True:
  od.analysecamera()
  
  if od.isdetected('banana'):
    quarky.drawpattern("ccccccccccccccccccccccccccccccccccc")
    speech.speak("Biodegradable Waste")
  
  if od.isdetected('bottle'):
    quarky.drawpattern("fffffffffffffffffffffffffffffffffff")
    speech.speak("Non Biodegradable Waste")

Output

waste

Object Detection on Stage – Python

The example demonstrates how to run an object detection on the stage and show all the objects with confidence.

Code

sprite = Sprite('Square Box')
obj = ObjectDetection()

obj.disablebox()
obj.setthreshold(0.5)
obj.analysestage()

sprite.gotoxy(0, 0)
sprite.setsize(100)
sprite.say(str(obj.count()) + " Object Detected", 2)

for object in range(1, obj.count() + 1):
  sprite.setx(obj.x(object))
  sprite.sety(obj.y(object))
  sprite.setsize(obj.width(object))
  sprite.say(obj.classname(object) + " with " + str(obj.confidence(object)), 2)

Output

Detection at 0.3
Detection at 0.5
Detection at 0.8

Person Detector – Python

The example demonstrates how to detect persons on the stage with different confidence thresholds.

Code

sprite = Sprite('Tobi')
obj = ObjectDetection()

obj.enablebox()
sprite.gotoxy(-180, -110)
sprite.setsize(100)

obj.setthreshold(0.3)
obj.analysestage()
sprite.say(str(obj.detectedcount("person")) + " Person Detected at 0.3 Threshold", 2)

obj.setthreshold(0.5)
obj.analysestage()
sprite.say(str(obj.detectedcount("person")) + " Person Detected at 0.5 Threshold", 2)

obj.setthreshold(0.9)
obj.analysestage()
sprite.say(str(obj.detectedcount("person")) + " Person Detected at 0.9 Threshold", 2)

Output

Body Part Counter

The examples show how to use Pose Recognition in PictoBlox to count the number of body parts detected in the body.

Script

Output

Air Draw

The example demonstrates how to use hand recognition and pen extensions to make an air draw game.

Script

Output

Finger Tracking

The example demonstrates how to use hand recognition to track the different parts of the fingers.

Script

Output

Clown Maker

The example demonstrates how to use human body detection to track the nose and make someone clown.

Script

Output

Finger Tracking – Python

The example demonstrates how to use hand recognition to track the different parts of the fingers in Python Coding Environment.

Code

thumb = Sprite('Thumb')
index = Sprite('Index')
middle = Sprite('Middle')
ring = Sprite('Ring')
pinky = Sprite('Pinky')

hand = Posenet()
hand.video("on", 0)
hand.enablebox()

thumb.switchcostume("ball-a")
thumb.setsize(50)
index.switchcostume("ball-b")
index.setsize(50)
middle.switchcostume("ball-c")
middle.setsize(50)
ring.switchcostume("ball-d")
ring.setsize(50)
pinky.switchcostume("ball-e")
pinky.setsize(50)

while True:
  hand.analysehand()
  
  if hand.ishanddetected():
    thumb.setx(hand.gethandposition(1, 4))
    thumb.sety(hand.gethandposition(2, 4))
    thumb.show()
    
    index.setx(hand.gethandposition(1, 8))
    index.sety(hand.gethandposition(2, 8))
    index.show()
    
    middle.setx(hand.gethandposition(1, 12))
    middle.sety(hand.gethandposition(2, 12))
    middle.show()
    
    ring.setx(hand.gethandposition(1, 16))
    ring.sety(hand.gethandposition(2, 16))
    ring.show()
    
    pinky.setx(hand.gethandposition(1, 20))
    pinky.sety(hand.gethandposition(2, 20))
    pinky.show()
  
  else:
    thumb.hide()
    index.hide()
    middle.hide()
    ring.hide()
    pinky.hide()

Output

Body Part Counter – Python

The examples show how to use Pose Recognition in PictoBlox to count the number of body parts detected in the body in Python Coding Environment.

Code

sprite = Sprite('Tobi')
pose = Posenet()

pose.video("on", 0)
pose.enablebox()

while True:
  pose.analysecamera()
  bodyPartCount = 0
  
  for i in range(21):
    if pose.isdetected(i, 1):
      bodyPartCount += 1
  
  sprite.say(str(bodyPartCount) + " Parts Detected")

Output

Clown Maker – Python

The example demonstrates how to use human body detection to track the nose and make someone clown.

Code

sprite = Sprite('Ball')
pose = Posenet()

pose.video("on", 0)
pose.enablebox()

while True:
  pose.analysestage()
  
  if (pose.isdetected(0, 1)):
    sprite.setx(pose.x(0, 1))
    sprite.sety(pose.y(0, 1))
    sprite.show()
  
  else:
    sprite.hide()

Output

Air Draw – Python

The example demonstrates how to use hand recognition and pen extensions to make an air draw game in the Python Coding Environment.

Code

sprite = Sprite('Pencil')

hand = Posenet()
pen = Pen()

hand.video("on", 0)
hand.disablebox()

pen.clear()
pen.setcolor([0, 255, 0])
pen.setsize(2)

while True:
  hand.analysehand()
  if hand.ishanddetected():
    if sprite.iskeypressed("space"):
      pen.down()
      sprite.setx(hand.gethandposition(1, 8))
      sprite.sety(hand.gethandposition(2, 8))
    else:
      pen.up()

Output

Sign Detection with Quarky

The example demonstrates how to use sign detection and make the Quarky show the detection on the LED.

Script

Output

Sign Detection – Tobi

The example demonstrates how to implement sign detection in PictoBlox.

Script

Output

Multiple Sign Detection

The example demonstrates how to find the closest sign from multiple sign detection and make the decision accordingly.

Script

Output

Object Tracking Robot

The example demonstrates how to make an object-tracking robot.

Script

Output

Home Automation – Light Control

The example demonstrates how to make smart home automation for light control using NLP and Speech Recognition.

Script

Output

QR Code Reader

The example demonstrates how to make a QR Code reader.

Script

Output

QR Code Reader – Python

The example demonstrates how to make a QR Code reader in the Python Coding Environment.

Code

sprite = Sprite('Square Box')
qr = QRCodeScanner()

qr.video("on flipped", 0)
qr.disablebox()

while True:
  qr.analysecamera()
  if qr.isdetected():
    sprite.setx(qr.xpos("center"))
    sprite.sety(qr.ypos("center"))
    sprite.setdirection(qr.angle())
    sprite.say(qr.codedata())
    sprite.show()
  else:
    sprite.hide()

Output

Pendulum Wand – Rotation

The example demonstrates how to make a sprite be fixed to a point but can rotate. The wand is hanging like a pendulum.

The center of the wand in the costume is the point of rotation.

The following code creates the simulation of the pendulum.

Output

Bell and Falling Balls

In this example, you understand the effect of the density, roughness, and bounce properties of the sprites. The ball falls from the top randomly, and the bell is fixed but can rotate.

Script of Bell

The bell center is changed to make it swing from the top.

Script for Ball

This script creates clones of the ball every 0.5 seconds.

This script assigns the properties of the clone.

Output

We will change the density of the bell and the ball in the block – set sprite density () roughness () bounce (). This will result in different simulations.

Bell is very light and the balls are very heavy: The inertia of the balls will affect the bell too much.
Bell is very light and balls are also very light: The bell is less affected by the ball. Gradually the bell slows down.
Bell is very heavy and the balls are very light: The bell is not affected at all. The balls are thrown without adding any effect on the bell.
Bell is very heavy and the balls are also very heavy: Same as option 2 – The bell is less affected by the ball. Gradually the bell slows down.

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[PictoBloxExtension]

read digital sensor () at ()

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