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Step 1: Create a New LocoXtreme Python Program


Start by creating a new Python program in the LocoRobo Academy.


The logic we will add will occur between the activate and deactivate motor lines. Recall that the motors must be activated in order to properly set the RGB Lights.


W1. Add code to prompt the user three times. Once for each R, G, and B color value, with the output stored in variables R, G, and B respectively. However, each prompt should ask for a HEX value from 00 to FF. Write your code below.

Step 2: Using the Input

With the input hex values stored in variables, we need to convert the values to decimal for use with the LocoXtreme set_lights() command. Recall that the int() function with a base of 16 can convert a hexadecimal string into a decimal integer.

W2. Add code to convert each R, G, B value into decimal, storing the decimal value in the same respective R, G, and B variable. Write your code below.

Now that we have decimal values, we can pass them to the set_lights() command and pause to display the user-specified color.

W3. Call set_lights() using your three decimal color values. Include a sync_lights() call after to update the lights on the robot. Finally, add a time.sleep() call to make the lights display for a time before the robot disconnects.

Step 3. Slicing

In the Lesson Video and Student Guide, it was shown how a string of hex characters could be split using slicing. Rather than prompting the user for three separate hexadecimal color values, we can prompt them for a single string of all three sets concatenated together. For example, rather than a user inputting FF three times, they would input FFFFFF in a single prompt.

For this type of logic, it is assumed the length is always 6 characters. Therefore, the user needs to add a leading '0' if the value would otherwise be a single digit. For example, 'A' would be '0A'.

W4. Update your code to only prompt the user for a single 6-character hexadecimal string. Slice the values for R, G, and B from left to right in the string, before they are cast into decimals. Write your updated code section below.

Answers

Answer 1

The Program based on the information will be given below.

How to explain the program

# Prompt the user to input a 6-character hexadecimal string

inputs = input("Please enter a six-digit hexadecimal sequence (e.g. FFFFFF): ")

# Slice the R, G and B values separately from left to right in the string, adding a leading '0' if needed

R_value = int(inputs[0:2], 16)

G_value = int(inputs[2:4], 16)

B_value = int(inputs[4:6], 16)

# Call set_lights() with three decimal represented colors then sync_lights()

set_lights(R_value, G_value, B_value)

sync_lights()

# To make lights display longer before disconnecting, add a time delay  

time.sleep(5)

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Related Questions

Create a UML diagram for the card game Go Fish.

Answers

A UML diagram for the card game Go Fish is given below:

The UML Diagram

-------------------------

|        Player         |

-------------------------

| -hand: List<Card>     |

| -score: int           |

| +getPlayerName(): String|

| +getHand(): List<Card>|

| +getScore(): int      |

| +addCardToHand(card: Card): void|

| +removeCardFromHand(card: Card): void|

| +addToScore(points: int): void|

| +hasCard(rank: Rank): boolean|

| +getMatchingCards(rank: Rank): List<Card>|

| +askForCard(player: Player, rank: Rank): List<Card>|

| +goFish(deck: Deck): Card|

-------------------------

        |                  ^

        |                  |

        |------------------|

        |                  |

-------------------------  |

|         Card          |  |

-------------------------  |

| -rank: Rank           |  |

| -suit: Suit           |  |

| +getRank(): Rank      |  |

| +getSuit(): Suit      |  |

| +toString(): String   |  |

| +equals(other: Object): boolean|

| +hashCode(): int      |  |

-------------------------  |

        |                  ^

        |                  |

        |------------------|

        |                  |

-------------------------  |

|         Rank          |  |

-------------------------  |

| ACE                   |  |

| TWO                   |  |

| THREE                 |  |

| FOUR                  |  |

| FIVE                  |  |

| SIX                   |  |

| SEVEN                 |  |

| EIGHT                 |  |

| NINE                  |  |

| TEN                   |  |

| JACK                  |  |

| QUEEN                 |  |

| KING                  |  |

-------------------------  |

        |                  ^

        |                  |

        |------------------|

        |                  |

-------------------------  |

|         Suit          |  |

-------------------------  |

| CLUBS                 |  |

| DIAMONDS              |  |

| HEARTS                |  |

| SPADES               |  |

-------------------------  |

        |                  ^

        |                  |

        |------------------|

        |                  |

-------------------------  |

|         Deck          |  |

-------------------------  |

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List the rules involved in declaring variables in python . Explain with examples

Answers

In Python, variables are used to store values. To declare a variable in Python, you need to follow a few rules:

1. The variable name should start with a letter or underscore.

2. The variable name should not start with a number.

3. The variable name can only contain letters, numbers, and underscores.

4. Variable names are case sensitive.

5. Avoid using Python keywords as variable names.

Here are some examples of variable declaration in Python:

1. Declaring a variable with a string value

message = "Hello, world!"

2. Declaring a variable with an integer value

age = 30

3. Declaring a variable with a float value

temperature = 98.6

4. Declaring a variable with a boolean value

is_sunny = True

Compare and contrast the code of ethics of two professional organizations or regulatory bodies in computer science field. Analyze the similarities and differences between the codes, and discuss their implications for professional practice. Critically evaluate the strengths and weaknesses of each code and propose recommendations for improving ethical standards in the profession.

Answers

Ethical standards upheld in the computer science field are set forth by reputable professional organizations like ACM and AAAI.

How is this so?

Both these organizations advocate for values promoting honesty, integrity, privacy protection and respect towards every individual's dignity.

While focus on educational growth is central to the ACM code of ethics, more significant emphasis seems laid down by AAAI for researchers in artificial intelligence fields to consider broader society concerns related to potential impact with AI research practices.

The codes derive their strength from placing significant stress on ethical behavior and acknowledging the influence of technology on society.

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