This series mainly explains the basic knowledge of wavelet theory, basic theory of wavelet transform and wavelet algorithm and other related knowledge.
The infrared induction hand dryer can make the relay respond accordingly according to the infrared induction situation to start or stop the hand dryer motor. The infrared induction hand dryer is mainl
How can I detect whether there is 220V input with the lowest power consumption?
Assuming that an optocoupler is used to detect 5V1MA, it is only 0.005W. However, if an optocoupler is used to detect 22
I have been busy all day today and finally got the program working, but there is one question I have not figured out yet, so I would like to ask for your advice. The question is as follows: 1 OSSemPen
STM32 virtual candle effect : https://training.eeworld.com.cn/course/2285It is very simple to implement. It only needs an ADC port, a microphone, and a picture to create a dynamic effect. The circuit
[i=s]This post was last edited by paulhyde on 2014-9-15 09:19[/i] The circuit is as follows. For some reason, when the output is connected to a transistor, the current and voltage are very large. With