from machine import Pin, ADC    
adc = ADC(Pin(32))
adc.atten(ADC.ATTN_6DB)   
adc.width(ADC.WIDTH_11BIT) 
 
while True:   
   adc_value = adc.read()                                      
   
   volts = (1.235*adc_value)/2047                                 
      
   input_voltage = "The input voltage is {:0.3f} volts and raw value is {:4d}"   
   print(input_voltage .format(volts,adc_value),end = "\r")