Random PyVISA Function Generator

This function randomly selects a function from the PyVISA library and generates a function that calls this function. This function can be used to communicate with instruments.

Technology Stack : PyVISA

Code Type : PyVISA function generator

Code Difficulty : Intermediate

                
                    
import random

def generate_random_visa_function():
    # List of possible PyVISA functions
    visa_functions = [
        'write',
        'read',
        'query_ascii_values',
        'query_binary_values',
        'queryf',
        'write_ascii_values',
        'write_binary_values',
        'read_ascii_values',
        'read_binary_values',
        'ask',
        'ask_for_values',
        'write_values',
        'read_values',
        'stop',
        'clear',
        'reset',
        'close'
    ]

    # Randomly select a PyVISA function
    selected_function = random.choice(visa_functions)

    # Define the function
    def random_visa_function(resource_manager, command):
        if selected_function == 'write':
            return resource_manager.write(command)
        elif selected_function == 'read':
            return resource_manager.read()
        elif selected_function == 'query_ascii_values':
            return resource_manager.query_ascii_values(command)
        elif selected_function == 'query_binary_values':
            return resource_manager.query_binary_values(command)
        elif selected_function == 'queryf':
            return resource_manager.queryf(command)
        elif selected_function == 'write_ascii_values':
            return resource_manager.write_ascii_values(command)
        elif selected_function == 'write_binary_values':
            return resource_manager.write_binary_values(command)
        elif selected_function == 'read_ascii_values':
            return resource_manager.read_ascii_values()
        elif selected_function == 'read_binary_values':
            return resource_manager.read_binary_values()
        elif selected_function == 'ask':
            return resource_manager.ask(command)
        elif selected_function == 'ask_for_values':
            return resource_manager.ask_for_values(command)
        elif selected_function == 'write_values':
            return resource_manager.write_values(command)
        elif selected_function == 'read_values':
            return resource_manager.read_values()
        elif selected_function == 'stop':
            resource_manager.stop()
        elif selected_function == 'clear':
            resource_manager.clear()
        elif selected_function == 'reset':
            resource_manager.reset()
        elif selected_function == 'close':
            resource_manager.close()
        else:
            return "Unsupported function"

    return random_visa_function

# Example usage
resource_manager = 'GPIB0::1::INSTR'  # Example resource manager
command = 'IDN?'  # Example command
result = random_visa_function(resource_manager, command)
print(result)