Connect the LED light. Because the power supply can only provide 5V, the three LEDs need 12V to light up. I removed one LED so that 5V can also light up. After connecting, fix it with insulating glue
In order to facilitate testing, a PCB expansion board was designed and proofed. The board is designed with female headers corresponding to the pin headers of the STM32F401 development board, so that t
In a world where everything is connected, more and more electronic devices that can understand speech are coming into our sight. In devices such as smartphones, tablets and laptops with Siri or Cortan
29. What is the requirement for phase noise at 1k offset , 10kHz offset, and 100kHzoffset for GSM handset?Answer: For GSM handset RX it has several architectures to implement:Superheterodyne,near zero