Engineer David Eun with the help of a 3D printer gathered wrist watch, which was able to attach a breathalyzer. Watch will remind the owner that he had enough and it's time to leave the party home. Their only notable drawback is of considerable size, which can attract the attention of both party-goers and the police.

Read more...

Engineer David Eun with the help of a 3D printer gathered wrist watch, which was able to attach a breathalyzer. Watch will remind the owner that he had enough and it's time to leave the party home. Their only notable drawback is of considerable size, which can attract the attention of both party-goers and the police.

Last already stopped engineer interested in, not a bomb attached to his hand. In the case of a massive clock set led display, Arduino Board with a processor and memory, the breathalyzer and the battery. The latter can be charged from a USB port. The clock lights up only when the owner makes a characteristic motion of his hand: they contain a motion sensor.

the Breathalyzer audible signal notifies the owner that the norm of alcohol in his blood has already been exceeded. Just enough to breathe on the device. The signal indicates that it is time to know and honor.