<p>➀ The article provides a step-by-step guide to building a timer-controlled doorbell using a CD4060 timer IC and a relay, aimed at managing AC power usage efficiently;</p><p>➀ It explains the interface between the CD4060, relay components, and AC circuits, along with practical installation tips for the system;</p><p>➁ The project targets DIY enthusiasts, electronics students, AC manufacturers, and users seeking energy-saving solutions.</p>