A homemade Arduino alarm clock that beats on the face

Simone Giertz, a pretty 25-year-old journalist, radio amateur, and programmer, seemed to get her share of fame last week when she wrote a column about programming uArm roborouks . The girl taught an iron friend how to sprinkle a dry breakfast and pour milk into a bowl. It turned out very funny . It turned out that due to the restriction of degrees of freedom in the manipulator, the only way to pour milk is to first drop the packet on its side and then take its suction cup by its side. Same thing with a breakfast box.

The adventures of the journalist did not end there. Now she has decided to improve another home appliance - an alarm clock. It’s easiest to wake a person up if you slap him on the head with a rubber hand, Simon decided - and set up an experiment in her own bed .

Note: Simone lives on a boat, so at the beginning of the video there is a round porthole behind her (however, this is a topic for a separate video cast).

So, the girl took an old alarm clock and figured out which contact closes when it is triggered. She connected wires to two pins, and used an Arduino Uno board with a microcontroller to read the signal.



A rather powerful 12 volt motor is connected to the board via a relay, which rotates at a frequency of 165 revolutions per minute. Simon fastened the entire structure in an iron box to the wall above the bed with tape, and with the same tape fastened a rubber arm on the motor.

When the alarm goes off, the real show begins. The hand begins to spin wildly and will definitely wake anyone.

The alarm clock is very effective, however, during work, he tore some hair from the girl (the strand wound up and got stuck in the motor).



In any case, it is impossible to sleep further, so the gadget does an excellent job of the task.