7 years, 5 months ago.

You could use the read_u16 member function of the AnalogIn Class

so in your example

      //Assign a named variable in memory
      unsigned int adcData;

      // Read the ADC and return a 16bit Unsigned short Integer
      adcData=ain.read_u16();

      //send the data as a unsigned integer number
      printf("%#u\n",adcData);
      //or convert to a binary series of 1's and 0's here plenty of howto's on the web for this

A comment on the unsigned number here. This is a 'Normalised' 16 bit number regardless of what the actual number of bits used for any MBED based controller you have selected. The MBED API will know which board you have selected and perform as follows:- e.g. For a 12 Bit ADC to 16 bit conversion. Shift Left by 4 bits and then add the upper 4 bit nibble to the lower (now zero) 4 bit nibble. The result is a 16 bit short Integer. (General case 16-numberofbitsoftheADC to give bit shift) If you know the ACTUAL number of bits your particular ADC uses then all you have to do is RIGHT shift by "16-umberofbitsoftheADC" to give your ADC value.