How to reads data(float) from keyboard and write to external EEPROM.

Hardware Arduino Due
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Arduino DUE.

How to reads data(float) from keyboard and write to external EEPROM.

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you need to read digit by digit from the keyboard

to make a float of it you multiply the number you hav by 10 and add the new digit until you encounter a . then you do a similar trick for the decimal part (divide by 10 100 etc)

finally if the number is read completely you save the four bytes that make up the float to EEPROM.