[i=s]This post was last edited by sky999 on 2019-7-15 17:52[/i]When only 5V is powered, the LED does not light up. When 220V is powered, the LED lights up. If the neutral wire is disconnected and the
Are audio amplifiers, Class A, Class B, Class C, Class AB, Class D, OTL, etc. circuits a type of DAC amplification? What are the similarities and differences with ordinary DAC analog voltage amplifica
1. Flash specificationsThe main chip used in this article is N32L436RBL7, and the flash size is 128k
The flash is divided into 64 pages, numbered 0-63, and each page is 2k.2. Precautions for flash ope
The correspondence between LCD segment codes and pins Yesterday, when debugging the segment code LCD, a problem occurred. The LCD displayed garbled characters. This segment LCD can display 9 digits an
I just came into contact with Renesas chips. The R5F0C908 used by the company is not in the main series, but in the R78 series. There is no library file for this, so I can't choose the model. The kern
In the EMC design of RS-485 ports, we need to focus on three factors: electrostatic discharge (ESD), electrical fast transients (EFT) and surge. The International Electrotechnical Commission (IEC) spe