This smoke alarm built using a UM3562 sound generator can help maintain a smoke-free environment in apartments, offices, factories, restaurants, hospitals, etc. In this article, we’ll explore the working of this circuit and how to build it. Fig. 1 shows the Smoke Alarm’s prototype while Fig. 2 shows the MQ2 sensor module used for the […]
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View more at https://www.electronicsforu.com/electronics-projects/smoke-alarm-circuit.
Credit- EFY. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed
