See how to make a 555 timer chip with a pulsing buzzer.
Parts:
555 timer chip
2x 4.7kohm resistor
100 uF capacitor
Pezio electric buzzer
Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check our list of supported iPhone and iPad models, then follow our step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
Comments
Be the first, drop a comment!