Always working solar lamp – Part 1: the data

Intro Everybody knows them: solar garden lamps. They work quite well during summers, when there is a lot of sun, days are long and nights are short. But come winter nights and you barely get anything from them. So i thought, what would it take to make a solar lamp that can always run when it is dark, winter or summer? In fact, this ties into a more general question: how do I size a… Continue reading

Too much sleep power

Intro Plenty of devices are running on power all the time, even when we are not using them. Sometimes all they do is monitor for the user to press a button or interact with the devices, but many modern devices maintain network connectivity. This allows them to wait for some user interaction which may come through a network connection from a computer, phone or other device. Some of these devices are doing so with low… Continue reading