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Explanation of the types of piezo or buzzer speakers, alarm sound, buzzer and their uses, and how to operate and convert a passive buzzer such as or to an Active buzzer at a frequency of 4000 hz using the simplest 555 ic oscillator circuit Difference Between Active and Passive Buzzer buzzer active vs passive What is the active buzzer? #Active_buzzer #passive_buzzer #Types_of_buzzer #techno_mesho ============ To subscribe to the channel and benefit from the advantages: / @technomesho ================= Replacing the multimeter speaker and raising the volume • Raising the volume of the multimeter speaker multimeter... ================= To communicate, email [email protected] We invite you to visit our page and like / meshil-eng-101047975106808