An electronic tattoo that can be controlled by a smartphone via Bluetooth! It can not only change the style of the tattoo, display important information, and make the tattoo disappear without a trace, but the pattern can still be moved!
My younger sister discarded an old electric bicycle, which was worthless at a discount, so I took it (the battery was more than a year old, and I paid 300 yuan for the whole bike. I thought it was 20A
The temperature sensor is based on DS18B20, and the single chip microcomputer uses EM78447. Because I bought an EM simulator, I used its core chip. It uses a 4-digit LED display and retains 1 decimal
At present, computer hardware education in China is still in its infancy. Due to the requirements of the practical environment and laboratory, hardware education in most training institutions and voca
[i=s] This post was last edited by Huanan on 2016-3-10 15:55 [/i]My simulation circuit is like this. At present, it can realize the voltage output of the switch (given a fixed signal, it can output no