Some experience in reducing noise and electromagnetic interference. (1) If low-speed chips can be used, high-speed chips should not be used. High-speed chips should be used in key places. (2) A resist
There are two audio configuration files: alsa.conf and asound.conf. I looked at alsa.conf and found @hooks [ { func load files [ "/etc/asound.conf" "~/.asoundrc" ] errors false } ] which calls sound.c
[align=left]It is only 3*3*0.75mm, and can accurately detect weak ECG signals from microvolt to millivolt levels. It integrates the detection of metal probe falling off. The algorithm library provides