hi sir can you please help me to design a circuit ...i really need your help as 4 days from today i will be having a presentation of my project...... i want to make a circuit that using a ic555timer ,buzer,led,transistor,and relay if possible.
i am aiming to make a circuit that can determine whether or not Refrigerator door is closed properly. i want the buzer to produce sound alert & the led to light up whenever if the Refrigerator door is not closed within within a given amount of time preferably minutes.
is this possible? please help me... please design the circuit for me so that i can learn how a simple circuit can solve this problem
i am aiming to make a circuit that can determine whether or not Refrigerator door is closed properly. i want the buzer to produce sound alert & the led to light up whenever if the Refrigerator door is not closed within within a given amount of time preferably minutes.
is this possible? please help me... please design the circuit for me so that i can learn how a simple circuit can solve this problem