I bought a Ninja Block about three years ago, which is essentially a Arduino + Node.js server thing that runs on the device to send the data from your devices (in my case, just two 433Mhz ...

Temperature control is important from the plastic room to the carrousel of the truck in the server room or the refrigerator, but there are surprisingly many places where it is difficult to record the ...

While using the household appliances as usual, by watching the power consumption of them, they will tell us a guideline for energy saving, that is"F-PLUG"is. By using this together with a personal ...