[i=s]This post was last edited by DIAG on 2019-3-24 22:01[/i] [size=5]It’s still the old 32 Skyworth LCD TV, with simple functions, suitable for my grandma. The auxiliary 5V power supply was repaired
The difference and usage of passive crystal and active crystal oscillator :This content is originally created by EEWORLD forum userzkj2014. If you need to reprint or use it for commercial purposes, yo
Figure (01) shows the circuit of the UC1525A (same as UC2535A and UC3525A, the three models differ only in the operating temperature range) switching power supply control chip produced by Unitrode (ac
From: https://blog.adafruit.com/2019/06/13/circuitpython-4-1-0-beta-0-released/
The biggest feature of 4.1.0 is speed! Python's general execution speed will be 2-5 times faster, and the display will r
[i=s]This post was last edited by wsmysyn on 2019-4-2 10:24[/i] The first post of this year is actually about a bug{:1_133:} I just changed my avatar, and it took five minutes to succeed. Then, after