Analysis of ZIGBEE's main competitors Wu Xianyi ZigBee wireless technology has made a big splash ZigBee is a brand-new short-range wireless network communication technology that focuses on low power c...
The second troublesome problem in the first project I am working on involves a 10-bit DAC, a DA chip with 4 outputs (0~10V and 4~20mA). Because it needs to be isolated from the MCU by a high-speed opt...
What I want to do is, after inputting a command from the serial port, how to submit it to the kernel for processing, how to hook out the processing result and send it to the serial port for display on...
It can play normally, but the progress bar just doesn't move. I use WM_Timer to update it. I checked and it can respond to OnTimer. I don't know why the progress bar just doesn't move forward. Can any...