Brother, I made a STM32F10XVB core board, including CPU, crystal, capacitor, reset, 100 pins are led out by 4 2X13 connectors, I have a question:should 5 VDD be connected together and use one pin to l
I made a DA conversion circuit of DAC0832 and 51 microcontroller, but I need to convert the output into a voltage of 0-30V. I don't know what operational amplifier to use. I looked at LM358, but it se
I attended the launch of Keithley's new product, the 2450 SourceMeter, the industry's first desktop source meter with a capacitive touch screen and an icon-based operating interface. I found that many