تکنیک charlieplexing:
یکی از روش های کاهش تعداد پین مورد نیاز برای روشن کردن یک LED خاص، I/O و....
به طوری که برخلاف روش عادی استفاده از ۲ multiplexer هم اندازه، تمامی پین ها با هم در تماس اند و نقطه اشتراک دارند.
از روی نیز تصویر میتوان مشاهده کرد که چینش سمت چپ ۱۶ نقطه قابل تشخیص، و شکل سمت راست ۲۸ نقطه دارند.
BY Turing Things
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
The messaging service and social-media platform owes creditors roughly $700 million by the end of April, according to people briefed on the company’s plans and loan documents viewed by The Wall Street Journal. At the same time, Telegram Group Inc. must cover rising equipment and bandwidth expenses because of its rapid growth, despite going years without attempting to generate revenue.
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