The ice is being broken at the swimming pool by the river. It looks like some people are going to swim soon.The temperature is very low in the morning.It will be better when the sun rises.The ice-brea
The P87LPC769 is a 20-pin packaged microcontroller that can achieve highly integrated, low-cost solutions under a wide range of performance requirements. As a member of the Philips small package serie
pthread_mutexattr_settype(&recursiveAttr, PTHREAD_MUTEX_RECURSIVE); When compiling, it reports that PTHREAD_MUTEX_RECURSIVE is not declared. How to correct it? ?
In fact, this idea has been around for many years. The roads in our country are too long. On the one hand, they can be used as roads, and on the other hand, they can be converted into electrical energ
My requirement is very simple, that is, I need a 10HZ signal with a stable amplitude of about 5V. The power supply is positive and negative 5V. I have checked many (such as XR2206, ICL8038, MAX038, XR