There is already a thread about serial port evaluation: https://en.eeworld.com/bbs/thread-1146793-1-1.html But the author should have used an independent USB-to-serial port module, and only tested "th
This was removed from a device that detects whether transparent glass bottles have defects. The red one is an LED light, which will shine light into the glass bottle, and then the probe can detect the
I found that I basically didn't finish reading a book in 2021. I plan to read a few books in 2022. However, I have been reading e-books. However, I feel that e-books have some disadvantages. Sometimes
The problem is this: I use a microcontroller to control the shutdown of the MOS tube to control the motor. The power supply voltage is 4V, but every time the motor starts, the microcontroller crashes.