This battery backup circuit can be added to surveillance systems like alarms and others to power the circuit during mains failure. The battery backup will immediately take up the load without any ...

In this article you will learn how to make a digital clock using Arduino and the DS1307 RTC ... First of all, connect the DS1307 circuit as below: So, it is not necessary to use coin cell battery as ...

So, what do you do when your Arduino project needs to operate in a remote area or as a portable device? There are LiPo battery shields available, and although they may work well, recharging ...

Adafruit has announced the launch of a new product today in the form of the VERTER power converter, which has been created to convert just about any battery ... using the Arduino platform ...

It’s an easy to build high voltage power supply that interfaces with an Arduino. After harvesting ... [Andrew] used a MOSFET and MOSFET driver for this circuit (although he says this guy works ...

Makers, developers and hobbyists that enjoy building Arduino ... a battery connector & charger built-in, & a fuel gauge that can tell you when to charge the battery.” • Battery Charger Circuit ...