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Make-an-Entrance Party Doorbell

Make-an-Entrance Party Doorbell

Next time you host a party, let your guests could choose what kind of entrance to make! The Make-an-Entrance Party Doorbell is a wireless doorbell with four buttons. Your guests can select between themes you choose, say, royal fanfare, heavy metal, Star Wars, or cheering sports fans. When they push the appropriate button, a regular doorbell sound is heard inside. But when the door is opened, a sound effect is played to match their selection. At the core of the project is a Raspberry Pi equipped with the EnOcean Sensor Kit.

chalk-writer

The ChalkJET Writing Machine

“Way back” in 2009, students in the UC Berkley “ME 102” class came up with this excellent automatic chalk-spraying machine. It uses 8 cans of spray-chalk to spray the message of your choosing onto the sidewalk or street as you push it along. This device is controlled by two Arduino Duemilanove boards, which apparently base […]