A modular orientation and acceleration data logger using a pair of ultrasonic sensors, RF transceivers, and a 1Sheeld.
Project tutorial by HyperChiicken
This article explains how to generate DTMF tones only using Arduino Uno.
Project tutorial by Dilshan Jayakody
A servo-driven lead screw using Arduino to calculate proper spindle and lead screw speeds for cutting English and metric threads with VFD.
Project showcase by Nick Romeo
My kids love balloons, and they know that daddy is almighty. :)
Project showcase by
I actually used this to determine artificial cloud speed. Basically, me running around with a big piece of cardboard where my phone is attached to. Not sure about topographic measurements though. Some measurements can probably be inferred from several sensor data.
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