A simple emergency light which does not require any special equipment; not even a multimeter to assemble and use. Any individual who can do a good quality soldering must be able to successfully build
Just like the floating globes sold in stores, it can make objects with magnets float in the air, except that this device combines permanent magnets and electromagnets, using a microcontroller and an I
This is a real scene that happened at the 17th International Integrated Circuit Exhibition and Conference (IIC-China) held in Shenzhen this year: an engineer from Dongguan came to the ADI booth with h
[i=s]This post was last edited by jishuaihu on 2015-7-3 13:25[/i] I saw a PWM to 0-20mA circuit somewhere else, as shown below. There are two things I don't understand. The first is how a single-power