Use SIM300 module to call ATD13XXXXXXXX; OK, the call is connected but the call is not working. There is no sound in the headset. The other party cannot hear me and I cannot hear the other party. What...
[size=4]40MHz bandwidth, for amplification (at least 1000 times), filtering (for high-pass, low-pass I used passive filtering), please recommend a few chips, and give reasons. [/size]I use OPA690, 847...
JTAG is also an international standard test protocol (IEEE 1149.1 compatible), mainly used for internal chip testing. Most advanced devices now support the JTAG protocol, such as DSP, FPGA devices, et...
Why is it that the acceleration parameters I read back from MPU6050 are only stable on the x-axis, there are noises on the y-axis, and the z-axis is always unstable, x-1, y-2, z-3, I am a newbie and i...