The dry coupling ultrasonic testing method does not require the application of liquid coupling agents such as water or oil on the surface of the material to be tested. It is easy to operate and flexib...
LM311 is a voltage-frequency conversion chip produced by National Semiconductor (NS). After National Semiconductor was acquired by Texas Instruments (TI), it became a product produced by Texas Instrum...
In the same batch of boards, other boards can work normally, but one board cannot communicate with the processor. Reading the registers shows all zeros, and the Linux system of this board cannot find ...
The modelsim simulation of the shift-add multiplier written in vhdl does not meet expectations. I can't find the problem myself, and hope to get your advice
Original code
LIBRARY IEEE;
USE IEEE.STD_LO...
When testing the ESP32 micropython network application, I found a problem: ESP32 is set as AP, and ESP32 is used as the server. The mobile phone is connected to ESP32 normally, and the mobile phone is...
Test/Measurement
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