Arduino is a microcontroller designed for real-time hardware control with very low power use. Raspberry Pi is a full computer that runs operating systems and handles complex tasks. Arduino excels at ...

Overcurrent relays with inverse definite minimum time (IDMT) characteristics are widely used in power systems to protect ...

Here we detail the design and implementation of a compact, low-cost, smart air-quality monitoring system based on the Arduino ...

Fidget toys are everywhere these days. A particularly popular type simply puts some keyboard switches on a plate to provide a certain type of clicky satisfaction. [wjddnjsdnd] took that concept a ...

Finally, eco-friendly music.

An Arduino library for the Hi-Link HLK-LD2450 24Ghz FMCW radar sensor. This sensor is a Frequency Modulated Continuous Wave radar, which makes it good for presence detection and has some interesting ...

New CodeCell C6 board adds Wi-Fi 6, Bluetooth 5, and Zigbee support plus Home Assistant compatibility, making sensor automation setup easier.

For people who are at high risk of developing breast cancer, frequent screenings with ultrasound can help detect tumors early. MIT researchers have now developed a miniaturized ultrasound system that ...

Home automation with high usefulness and low annoyance tends to rely on reliable person sensing, and [francescopace]’s ESPectre shows one way to do that cheaply and easily by leveraging ...

"This project is not about powerful hardware or complex graphics." ...

The MV300 detects the direction and strength of the 3D (X, Y, Z) magnetic field. The signal from Hall sensors is amplified and converted to digital signal. The magnetic field range can be scaled from ...