555 Timer IC Projects - Electrical Engineering Purdue ECE
This 555 timer IC circuit uses two IC 555 chips to generate the speaker's tone and then play the note at an adjustable frequency and duty cycle. This electrical engineering project is for Purdue's notorious 2k7 class, which pairs with 2k1. Learning the 555 timers in monostable and astable modes in this DC circuit is a lot for a one-credit-hour lab in basic electrical engineering.
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