Say goodbye to streaming ads! Learn how to set up a Raspberry Pi Pi-hole for just $15 and enjoy seamless, distraction-free ...

Save money with Raspberry Pi projects. From media centers to smart homes, Pi beats mini PCs in terms of cost and flexibility.

Abstract: Since it is difficult to obtain the number of sources accurately in practical situations, direction-of-arrival (DOA) estimation methods without the number of sources are very much needed for ...

In this module we will wire up an ultrasonic sensor and attach it to our Raspberry Pi. Using the ultrasonic sensor we will measure the distance an object is away from the sensor. The distance of the ...

What if you could replace a $20,000 military-grade router with a DIY system costing just $106.23? It sounds improbable, but thanks to open source ingenuity and affordable hardware, it’s entirely ...

Abstract: In this digital era, crimes related to home invasions cause fear for a huge percentage of people throughout the globe. They cause a sense of vulnerability for their houses in place of peace ...

The SparkFun Ultrasonic Distance Sensor - TCT40 (sen-24805) a user-friendly upgrade to the popular HC-SR04 sensor, offers non-contact distance measurement from 2cm to 400cm with an accuracy of 3mm.

I purchased one of each of these cheap sensors recently from aliexpress for testing purposes. Compared with the ubiquitous HC-SR04 (*), I liked the idea of having a combined emitter/receiver, i.e.