A DIY The Wrench maker has built a smart desk dustbin with an automatic iris-style lid, adding both functionality and a ...

To prevent this, the circuit uses a MOSFET (T1 ... ultrasonic sensor are daisy-chained, with the ultrasonic sensor connected to CN2 of the SAMD21 module. This way, the wiring is kept simple; the ...

You can test the circuit with a function generator and a 40-kHz ultrasonic transmitter or a suitable tweeter. An alternative signal source is, for example, the inexpensive Grove ultrasonic distance ...

PDF tutorial(more than 22 lessons) and clear listing in a nice package The most economical kit based on Arduino platform to starting learning electronics for those ...

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