There are many ways to generate digital phase-shifted signals. The traditional direct digital frequency synthesis (DDS) phase-shifting principle is to first digitize the sine wave signal and form a da...
STC89c54RD+ defines array xdata a[18] _at_ 0x001d; I can change its value with the keyboard, but after powering on, its value changes randomly. I would like to ask you how to ensure that its value is ...
I am using a pressure sensor now, but the no-load voltage of the pressure sensor is not 0.
The sensors are all different.
A great person told me to reset the software, but I don't know how to do it. T...
MV-400 high-precision, high-speed image acquisition card 【Features 】MV-400 high-precision, high-speed image acquisition card is a mature and stable high-precision true color ( black and white ) real-t...
unsigned char SPI_RW(unsigned char byte)
{unsigned char bit_ctr;for(bit_ctr=0;bit_ctr8;bit_ctr++){NRF_MOSI=(byte0x80); // MSB TO MOSIbyte=(byte1); // shift next bit to MSBNRF_SCK=1;byte|=NRF_MISO;// c...
What's inside a counterfeit Macbook charger? A reader sent me a charger he suspected was a counterfeit. On the outside, the charger looked like a near-identical Apple charger, but when you take the ch...