The circuit presented here is a very simple and yet highly effective alarm system for protecting an object. The circuit requires no special devices and can be built using components that you will no ...

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This simple alarm circuit was designed for use in a combined garage and rumpus room. It can be assembled on Veroboard and uses just one IC plus a handful of cheap components. The circuit is based on a ...

As California highway slides toward sea, the fix will take billions New disclosures show Trump bought bonds affected by ...

A few simple components are all it takes to create an over-temperature alarm. The circuit in Figure 1 requires only an ordinary negative-temperature-coefficient (NTC) thermistor, two common ICs, and a ...

If you could spend a couple of bucks on a simple project that might prevent a $2000 repair bill on your vehicle, you’d probably build it, right? That’s the idea behind this simple low-pressure alarm ...

If you set a schedule and wake-up time on your smartphone you will be informed with notifications and alarms so you can be relieved even if you forget the schedule but when you sleep it was placed on ...

The Lumie Sunrise Alarm is packed full of light, colour and alarm features in a simple display… here’s our full review When you purchase through links on our site, we may earn an affiliate commission.