Using only a single wire to increase sensitivity, an Arduino's ADC can be used to detect motion!
Project tutorial by connornishijima
Using ultrasong PWM frequencies, the Arduino can now produce square tone() waves with 256 volume levels with nothing but a speaker!
Project tutorial by Connor Nishijima
Did you know that a standard three-wire PC Fan can be used as a sensor?
by Daniel Porrey
Someone has been eating my cookies! Thankfully Arduino is here to help find out who it is.
Project tutorial by Dante Roumega
Sweet! If this'll lead to faster display writing, that would be awesome. Seeed's is pretty slow.
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