Five 555 Circuits You May Never Have Heard Of

The famous NE555 chip is more than just a timer. This video is about five unusual circuits and applications you may never have heard of.

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Tools:
- Simulation: https://github.com/sharpie7/circuitjs1
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00:00 - Intrduction into the 555
01:10 - Debouncing
02:03 - Toggle switch
02:58 - Undervoltage protection
03:54 - Electronic fuse
04:25 - Battery protection circuit (PCBWay)
06:17 - Audio amplifier