There are a number of precautions you can take when working with mains power. We’ve all used the simple in-line power strip so you can quickly switch off the current, but [Yann] has included a ...

Being able to control something is nice, but being able to tell if a mains-connected appliance is on or not is just as valuable. [Shane] has a really simple circuit he’s been working on to do ...

We also liked that the power bank can be plugged into the mains and used as a wireless charging pad, meaning it never eats into the power bank’s battery. This is one of the niftiest inventions ...

Having a power bank in your bag is the smart thing to do because you don’t want to end up with a dead battery on your phone, especially when it will be a while before you reach home. Thankfully ...