Nowadays, getting up to turn off/on the lights is too much work. To make it easier for people, my partner Ernie and I came up with the idea of clap on/off lights. The design uses a micro bit, a loudness sensor, and a light(s). In or to turn the lights on, something must make a sound larger than 1000 HZ (the average sound of a human clap). We are also going to get the LED to show ‘Remember to clap to turn off lights’.