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Operators Blocks for Block Coding in PictoBlox
[PictoBloxExtension]
PictoBlox Extension

Operators

Operators
Extension Description
Operator blocks deal with many mathematical functions within a project.
  • STEMpedia-Rocket-800x800 Available in: Block Coding
  • STEMpedia-Rocket-800x800 Mode: Stage Mode
  • STEMpedia-Rocket-800x800 WiFi Required: Yes
  • STEMpedia-Rocket-800x800 Compatible Hardware in Block Coding: evive, Quarky, Arduino Uno, Arduino Mega, Arduino Nano, ESP32, T-Watch, Boffin, micro:bit, TECbits, LEGO EV3, LEGO Boost, LEGO WeDo 2.0, Go DFA, None
  • STEMpedia-Rocket-800x800 Compatible Hardware in Python: evive, Quarky, Arduino Uno, Arduino Mega, Arduino Nano, ESP32, T-Watch, Boffin, micro:bit, TECbits, LEGO EV3, LEGO Boost, LEGO WeDo 2.0, Go DFA, None
  • STEMpedia-Rocket-800x800 Object Declaration in Python: sprite = Sprite("Sprite-Name")
  • STEMpedia-Rocket-800x800 Extension Catergory:

Introduction

Operators is one of the ten categories of default Scratch blocks. They are color-coded light-green and are used to script math equations and string handling.

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PictoBlox Blocks

The block activates the RFID sensor to read any nearby RFID tags for the specified time. Once identified, the value of the reading is stored in the local system which can be used from the other blocks. The block also reports whether the operation is completed or not. If any RFID tag is scanned the block returns 1, else it returns 0.
The block reports the selected field data from the last read request from ThingSpeak.
The block resets the timer running for the oscillator to 0.
The block executes the oscillator according to stored parameters for the servo motor and the current angle specified in the block.
The block sets the Gripper Robot’s gripper servo motor angle for the open or the close position to the specified value.
This block defines the angles at which the gripper of the robotic arm will open and close. The block ensures that the robotic arm will open and close the gripper at the specified angles.
The block returns the value of “hours”, “minutes”, “seconds”, “date”, “month”, “year” or “weekday” from evive’s RTC. 
open and close gripper block
This block opens and closes the gripper of the robotic arm by setting the gripper servo motor the opening angle and the closing angle set by the user using set gripper open angle to () & close angle to () block.
The block checks to see if its sprite is touching the edge of the screen with the move steps block — and if it is, the sprite will point in a direction that mirrors the direction from which it is coming. It uses a line perpendicular to the edge to determine the reflection angle.
This block resets all 7 graphic effects.
The block will report a specified value of the specified sprite or the Stage.
The block reports how many characters the given string contains.
The block checks if any items in the specified list are equal to the given text—if at least one of them is, the block returns true; if none of them are, it returns false. The item must contain the exact text; for example, “abc” would not work if the item contained “abcde”. This block is case-sensitive.
This block is used to check if the input image belongs to one of the classes previously defined. The class to be checked with can be set using the drop down menu.
The blocks add a force to the sprite with the defined value in the specified direction.
The block reports the data stored from the last RFID scan.
The block makes the specified type of HTTP request (GET, POST, or DELETE) on the specified URL. The request can have a body or not.
The block reports the time passed from the reset for the oscillator.
The block executes the oscillator for the complete cycle for the specified cycle times. The cycle time is the maximum time period assigned for the oscillator for the individual servo motors.
This block sets the angle of the robot’s gripper servo motor to a value you specify.
This block is used to open and close the gripper on a robotic arm by setting the gripper servo motor to specific opening and closing angles set by the user.
The block gives the value of the voltage sensed on the sensing ports of evive. There are 2 ports red (voltage range -30 to 30V) and blue (voltage range -5 to 5V). 
get current servo angle block
This block reports the value of the angle of the selected servo of the robotic arm.
The block changes the Rotation Style of the sprite in-project. Regardless of the style, the variable direction will still change.
If the block’s sprite is hidden, it will show the sprite. If the sprite is already showing, nothing will change.
It reports either the current local year, month, date, day of the week, hour, minutes, or seconds, depending on the argument. The block gets the data based on the user’s computer’s clock and set in 24-hour clock.
The block reports the remainder of the division when the first value is divided by the second. For example, when 10 is put in the first input and 3 in the second, the block will report 1; 10 divided by 3 gives a remainder of 1.
The block shows the specified list’s Stage monitor.
This block is used to get the class of the input face detected from the analysis. 
The block adds a spin force to the sprite with the specified value.
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