Microbit Binary Counter

Specification Sheet

• Purpose: Count the number of 1s and 0s in a given binary string.
• Input: A binary string provided by the user.
• Output: Counts of 1s and 0s in the input binary string.
• Validation: The program ensures that the input only contains binary digits (0s and 1s).

Pseudo Code

    Start
    Prompt user for a binary string
    Validate the input:
        If input contains characters other than 0 or 1:
            Display error and terminate program
    Initialize counters for ones and zeros to 0
    For each character in the binary string:
        If character is '1':
            Increment the ones counter
        Else:
            Increment the zeros counter
    Display the counts of 1s and 0s
    End
    

Python Code

    
    def count_binary():
        # Prompt user for a binary string
        binary_str = input("Enter a binary string: ")

        # Validate the input
        if not all(char in '01' for char in binary_str):
            print("Error: Input must only contain binary digits (0 and 1).")
            return

        # Initialize counters
        ones_count = 0
        zeros_count = 0

        # Count 1s and 0s
        for char in binary_str:
            if char == '1':
                ones_count += 1
            else:
                zeros_count += 1

        # Display results
        print(f"Count of 1s: {ones_count}")
        print(f"Count of 0s: {zeros_count}")

    if __name__ == "__main__":
        count_binary()
    
    

Purpose: You will learning to program the micro:bit

Your video will be of the actual Micro:Bit hardware.
            
            You will drop off 5 files into Google Classroom:
            • Your files will be: (Remember the python program is dropped off first.)
                • PX_lastname_BinaryCounter.py (Python program)
                • PX_lastname_BinaryCounter.hex (Hex file for Microbit hardware)
                • PX_lastname_BinaryCounter.png (Screenshot)
                • PX_lastname_BinaryCounter.mp4 (Video running the program online)
				• PX_lastname_BinaryCounter.mp4 (Video running the program on the micro:bit Hardware)

            
              Current Resources needed:
                 Check in and check out your Micro:Bit
                 Launch the Micro:Bit Python interpreter
                 At this time you will run your code.
                 Use the online Microbit but still download the hex file for hardware use.

            
                 If you do not understand this assignment,
                 ask Mr. Cusack and/or attend tutorials.
        

Usage

Run the Python program and input a binary string when prompted. The program will display the count of 1s and 0s in the string. If the input contains invalid characters, an error message will be shown.