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Genre: Howto & Style
Feb 17, 2023 ^^
warning: returnyoutubedislikes may not be accurate, this is just an estiment ehe :3
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RYD date created : 2024-08-26T20:16:05.780516Z
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Top Comments of this video!! :3
Sigh.. once again, every single circuit put out by this channel seems to be crap. You cannot just connect up bare LEDs to IC outputs like that. This circuit will fry that counter chip in no time, because you are pulling way too much current through those output pins.
According to the datasheet, that chip can handle an absolute max of about 100mW for each output pin. At 9V supply voltage, that means 11mA max. There is no current limiting at all on those LEDs, which means the only reason the LEDs aren't fried instantly is probably because they're being limited by the internal resistance of the IC, which is very very bad and will not last long.
If anybody wants to make a version of this circuit that doesn't fry itself after running for a minute or two, make sure to hook up some 330 ohm resistors in series on each of those output lines. That will limit the output current to a level that the chip can actually handle. (if you reduced the supply voltage to 5V (or, say 4.5V (three AA cells)) you could probably get away with 150 ohm resistors instead, which would make the LEDs brighter, while still adequately protecting the chip and the LEDs)
(Yes, surprisingly, reducing the battery voltage can actually let you make the LEDs brighter in this case.)
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ขอขอบคุณสำหรับ รีวิวเพื่อการพัฒนาระบบสารสนเทศภูมิศาสตร์ เพื่อการศึกษาของมวลมนุษยชาติ ได้รับการสนับสนุนและส่งเสริมให้เกิดประโยชน์สาธารณะตลอดเวลาที่จะมีเวลาว่างพอนะครับ สำหรับคลิปนี้ ขอบอกเลยว่าสุดยอดมากครับ เป็นที่สุดในโลก อินเตอร์เน็ตไร้สายในโลกปัจจุบันส่งต่อถึงอนาคตของมนุษยชาติ ได้มุมมองที่ดีขึ้นไปอีกนานเท่านาน มาก ๆๆๆๆๆๆ สวัสดีครับ เรามาเริ่มกันเลยครับ ?❤❤❤❤😂😂😂😂😂😂😂
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Not gonna lie, I was disappointed. I looked at the pyramid and asked myself "How are they gonna address the LEDs individually" (it wouldn't even be that hard in that configuration to light each one individually).
Seeing the ones stacked on top of each other lit in parallel was kinda anticlimactic.
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@INTION1
2 months ago
Other Projects : type @intion1 on YouTube search Bar Tools and components : type @intion1 on YouTube search Bar. Then see the channel’s Description.
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