.. ho questo problema.. devo convertire una stringa tipo "650762387.45" nel corrisondente valore decoimale...
Per un tipo artificioso a 64 bit posso farti un atoi64Non ora, ma e' in cantiere tra le TODOLIST 2012.
floatDatatype for floating-point numbers, a number that has a decimal point. Floating-point numbers are often used to approximate analog and continuous values because they have greater resolution than integers. Floating-point numbers can be as large as 3.4028235E+38 and as low as -3.4028235E+38. They are stored as 32 bits (4 bytes) of information.Floats have only 6-7 decimal digits of precision. That means the total number of digits, not the number to the right of the decimal point. Unlike other platforms, where you can get more precision by using a double (e.g. up to 15 digits), on the Arduino, double is the same size as float.
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