| 摘要 |
<p>The present invention relates to a clap sensing circuit which comprises a sound receiver for receiving various sound and a controller which consists of Cortex-M0 for filtering and recognizing the frequency corresponding to the sound of clap among the received signals and outputting the frequency as a digital signal. The present invention can transmit a ringtone or an alarm tone by using the sound of clap and can perform a role of an on/off switch capable of controlling peripheral appliances.</p> |
