Make yourself an automatic ice bucket challenge machine with ATmega32u4

You have likely seen your fair share of ALS Ice Bucket Challenge videos over the last few weeks, but this new automatic Ice Bucket Challenge vendor demonstrated by gckulo changes the game.

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We featured Christopher Lewis’ automatic Ice Bucket Challenge device last week and this contraption fits in the same innovative bill. The ATmega32u4 based RoMeo V2[R3], which behaves like an Arduino Leonardo, serves as the brains of the DIY build. This Arduino-compatible device dumps the bucket of ice water whenever the sensors linked to its central control system are triggered.


“When the guy is standing in front of the machine, the Arduino controlled system will pull the rope and pour out the ice and water in the bucket,” the Maker describes his contraption.


An ultrasonic sensor is employed to trigger when a user enters the specified splash zone. “The range of this ultrasonic sensor is about 10 meters. However the detecting angle is about 15 degrees. So it could achieve the detection in a specified range,” gckulo adds.

In all, this project works to raise awareness for ALS and the Maker community. What a great combo!

To read the initial tutorial, you can browse through the project’s Instructables page here.

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