Before trying the STM32WB55 Nucleo pack, I was still looking forward to it. After all, it is the first dual-core MCU of STM32, and it has BLE 5.0 + 802.15.4 dual-mode wireless function and low power d...
This paper introduces a telephone alarm with a single chip as the control core. It uses the telephone network to transmit digital and voice information, with novel design, complete functions, high rel...
Registered early
I haven't come for some personal reasons.
I went to the exhibition during the epidemic and saw EE
After coming back, I found that there are many resources here, the learning atmospher...
Figure 1 shows some connected sampling resistors, and Figure 2 shows the detection circuit. I would like to ask how to determine the resistance values of C17 and R7 in the detection circuit? How to de...