[size=4] Wireless communication is a communication method that uses the characteristics of electromagnetic wave signals propagating in free space to exchange information. Wireless communication techno...
[i=s]This post was last edited by fish001 on 2018-9-25 14:55[/i] [size=4] Usually, we often mention the three parameters of temperature sensors, such as resolution, sensitivity and accuracy. But many ...
I got a STM32L151C8T6 board, powered by a 3.3V button battery. But the battery died. I used STLINK to power it, and it should be 3.3V, but when I measured it with a multimeter, it was 4.77V, and somet...
The output voltage rises, the cathode voltage of TL431 drops, the P tube is turned on, and the output voltage drops.
But doesn't the transistor go directly to the ground when it is turned on? Is there...