/learn/learning-center/stem-academy/microbit/b/blog/posts/10-bbc-micro-bit-projects-in-10-days-day-eight---security-alarmAbout this project This project demonstrates how the BBC micro:bit&#39;s functions can be enhanced with external devices, in this case a 3V buzzer that can be programmed to act as a security alarm. What you&#39;ll need 1 x BBC micro:bi...en-USTelligent Community 12https://community.element14.com/learn/learning-center/stem-academy/microbit/b/blog/posts/10-bbc-micro-bit-projects-in-10-days-day-eight---security-alarmFri, 22 Jul 2016 16:46:24 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:758b15d2-eea6-403b-9023-ecad6478b6a4buteman2<p>What sort of buzzer can this be?</p><p>Is the micro:bit capable of supplying the needed current?</p><p>Is it protected from reverse voltage spikes?</p><p>We need answers to these questions before thousands of them are destroyed.</p><img src="https://community.element14.com/aggbug?PostID=1544&AppID=140&AppType=Weblog&ContentType=0" width="1" height="1">