[ '/', 'Home' ],
'wifi' => [ '/wifi', 'WiFi config' ],
'waveform' => [ '/waveform', 'Waveform' ],
'fft' => [ '/fft', 'FFT' ],
// 'spectrogram' => [ '/spectrogram', 'Spectrogram' ],
// 'transient' => [ '/transient', 'Power-on transient' ],
'about' => [ '/about', 'About' ],
];
$appname = 'Current analyzer';
?>
<?= htmlspecialchars($menu[$page][1]) ?> - <?= htmlspecialchars($appname) ?>