In the previous design of the oscilloscope input buffer (click here), I noted that the negative part of the signal was clipped. However, there is one more problem, the value close to zero (below ~300mV) is also considered too low to be passed by the buffer. The revised design solves this problem and give better limitation on the input signal amplitude to protect your sound card.

Infinity Mirror

Not long ago, I saw the infinity mirror illusion on youtube and really wanted to make my own

The result:

Okay, seriously, it looks cooler than it really is in real. LEDs are white btw! :P

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All previous projects are posted in my google site here

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