In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Today we are going to create a strobe light for the tips of the wings of an rc airplane using a 555 timer (NE 555 or lm 555 IC) this circuit is very easy to make with few components and most ...

I've reviewed security systems from all major brands. Here are my most important recommendations when you're ready to set up your own.

Pennsylvania led the nation in fire deaths in 2025, but the Red Cross hopes to change those statistics by providing free smoke alarms. According to the U.S. Fire Administration, 26 fire fatalities ...

Ohio fire officials urge residents to check smoke alarms and carbon monoxide detectors when clocks 'spring forward' this weekend.

With zero coding skills, and in a disturbingly short time, I was able to assemble camera feeds from around the world into a ...

The American Red Cross is urging residents to test their smoke alarms this weekend as they set their clocks forward for daylight saving time on March 8.

Firefighters in St. Louis are installing 1,000 smoke alarms this weekend as part of the “Smoke Alarm Blitz” initiative, in partnership with the Red Cross, to help prevent fire-related ...

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning. In June 2024, early career geologist Gustavo Béjar López traveled to Guatemala ...

Falling space junk is becoming a real-world hazard, and scientists have found a clever new way to track it using instruments already listening to the Earth itself. By tapping into networks of ...

Fire officials say working smoke alarms are critical to giving families time to escape during a fire.Residents are encouraged ...

Anchorage Fire Department and the American Red Cross will distribute fire safety info and free smoke alarms at Malaspina ...