title: How to convert Char into Float
body: <p>How to convert an unsigned char value into a float or double in coding in AVR studio 4.?</p>
  
  <p>Please help I am a beginner, my question may sound stupid too :/</p>
  
  <p>Like I have got a  char keyPressed</p>
  
  <p>and I have printed it on the screen using
  lcd_gotoxy(0,0);
  lcd_puts (keyPressed);</p>
  
  <p>Now I want to use this value to calculate something..
  How to convert it into float or double? please help</p>