def readADC_pico(nn,cnvrt=5.035477e-05):
    #By D@CC
    #On 2024BFeb29
    #Article: 180.html
    #uSD: Fla53D

    #nn is the pico GPnn (ADCnn) to read
    # if cnvrt is absent:
    #   returns a value from 0 to 3v3
    # if cnvrt = 1
    #   returns the value read from 0 to 65535
    # if cnvrt = other
    #   returns a value in range 0 to other*65535

    #Functions Used:
    # Pin()
    # machine.ADC(nn)
    #

    #cnvrt = 5.035477e-05 converts the reading to volts
    #          when the ixProbe is not used .
    # that is the default cnvrt factor.
    # next line is needed to remove pull-up resistor
    #   to produce a high-impedance input
    #   Source: forum.micropython.org/viewtopic.php?f=21&t=9959
    adcFirst =Pin(nn+26,Pin.IN)
    # create the ADC object
    adcFirst = machine.ADC(nn)
    # now read the ADC
    adcValue=adcFirst.read_u16()
    #print("The value of ADC0 is", adcValue)

    #conversion_factor = 3.3 / (65535)
    #print("conversion_factor:",conversion_factor)
    adcVoltage=adcValue * cnvrt
    #print("The voltage at ADC0 is", adcVoltage)
    #print("-bye- from readADC_pico.py")
    return adcVoltage
#def end
#/readADC_pico.py