The Relay is a walkie-talkie type product meant to help bridge the gap between kids and their parents. Rather than hand little Johnny or Suzie an addictive screen, the Relay lets parents keep tabs on ...

Technology has given us more ways than ever to keep up with friends and family. Smartphones let us effortlessly stay in touch, keep an eye on the kids, and even see who's coming and going from the ...

Over the years, control relays of various types have been used by the hundreds — even thousands — to control nearly every function in commercial and industrial processes. Today, many of those ...

Members can download this article in PDF format. In this design idea, you will learn how to interface two PIC microcontrollers using a wireless 433-MHz RF transmitter/receiver pair to control up to ...

History is littered with attempts to build a mobile phone for kids. There was a range of Japanese phones with cute ears, there has been the MyPhone, BeMilo and others. Dozens of them. And they all ...

ESP-01 is a tiny and useful piece of hardware. It has a 32-bit MCU, 2.4GHz 802.11 b/g/n WiFi, 1MB flash memory, and several other useful embedded features. Such ...