[[TOC(heading=Table of Contents, Docs/Prog/Manual/*)]] = Beeper = The beeper device /dev/cardbeep accepts formatted strings containing various notes to play. The following notes are supported: ||'''Note'''||'''Octave'''||'''Frequency (Hz)'''|| ||C||5||523.25|| ||D||5||587.33|| ||E||5||659.26|| ||F||5||698.46|| ||G||5||783.99|| ||A||5||880|| ||B||5||987.77|| ||C||6||1046.5|| ||E||6||1318.5|| ||G||6||1568|| ||A||6||1760|| ||C||7||2093|| ||D||7||2349.3|| ||E||7||2637|| A string can be formatted to send to the device in the format: {{{ * duration * 1 – 8, note = 1/duration * 1 = whole (1/1) note * 4 = quarter (1/4) note * 8 = eighth (1/8) note * note - letter from above table * octave - number from above table }}} Commas are used to separate note information, for example: {{{ 4A5,8E6 }}} Plays a 1/4 note A in octave five then a 1/8 note E in octave 6. The default octave may be set by: {{{ O }}} Example: {{{ O5,A,B,C }}} Sets the default octave to 5 then plays note A, B, and C. The tempo may be set by: {{{ T }}} ''tempo must be three characters numeric''' Example: {{{ T100,A,B }}} Sets the tempo to 100 then plays note A and B. Refer to the lib825ev library functions for sound output. http://tech.825spectrum.com/trac/wiki/Docs/Prog/Manual/ApplicationLibraries/lib825ev/KeypadSound#KeypadSoundFunctions [[Top]]