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The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation and oscillator applications. The part is still in widespread use, thanks to its low price and ubiquity. The 556 timer is simply two 555 timers in a single package.

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basic arduino question - do I need a 555 timer?

I have read a bit about 555 timers. … If I wanted to control two motors simultaneously stepping the motors independently of each other from my single Arduino, could this be done with a 555 timer IC for each motor? …
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