[fahadshihab], a young tinkerer, shared his circuit design for a simple remote control using 555 timers. Using a 555 calculator, he designed a clock circuit that would run at 11.99 Hz. Two transistors ...

Every now and then a remote control acts up. Maybe you are trying to change the channel on your television and it’s just not working. A quick way to determine if the remote control is still working is ...

Any time you are working with burglar alarm, access control, sound, nurse call, or intercom systems, as well as computer networks, lighting dimmer controls, and low-voltage industrial controls, you ...

This light activated remote switch circuit could be operated using a flashlight beam and could eb used for toggling a specified load from a distance using an external light source such as a flashlight ...

E-T-A Circuit Breakers has introduced the E-T-A 4930, a new remotely controlled, single pole circuit breaker (RCCB) approved to MIL-PRF-83383 for the protection of aircraft electrical systems and ...

Circuits that fall under the requirements of Art. 725 are remote-control, signaling, and power-limited circuits that aren’t an integral part of a device or appliance. Article 725 includes circuits for ...

Vishay Intertechnology, Inc. has announced an upgrade to its VSOP383xx series of preamplifier circuits for infrared (IR) remote control applications, introducing the new Cyllene 2 IC. These upgraded ...

In a twist on nontraditional uses of ultrasound, neuroscientists have developed pulsed ultrasound techniques that can remotely stimulate brain circuit activity. The findings provide insights into how ...