This case is a work for an electronic design competition. It mainly realizes non-feature speech recognition control, speaker playback, IoT monitoring and control, voice control and other functions. A ...
I recently saw a video by a great guy outside the Great Firewall. It's pretty good, so I'd like to share it with you. The video content explains the basic circuit principles and also includes DIY of v...
[size=4]Don't plug or unplug while power is on, [/size][size=4]Don't plug or unplug while power is on, [/size][size=4]Don't plug or unplug while power is on! [/size] [size=4] I have to say it three ti...
Test phase voltage and phase current waveforms 1. Ia and Ua waveforms when the motor starts (blue is current and yellow is voltage)2. Ia and Ua waveforms when the motor is running steadily (blue is cu...
[align=left][size=14px][font=Microsoft YaHei, arial, 宋体, sans-serif][size=5][color=#666666]The circuit arrangement of the rigid-flex board requires resistors in some 'fortresses'. Soldering technology...