Automatic Infrared Water Tap
Simply place your hands or dishes underneath the Automatic Water Tap to activate the IR sensor and water is released from the water switch. Cost ₹300 or $5
Fire Detector Alarm with BC547
This is a simple fire detector alarm circuit using BC547 transistor. This fire alarm circuit can easily detect the fire with IR LED and start the buzzer.
LED Dimmable Lights with 555 Timer
This is a simple 12v LED dimmable lights circuit using the 555 timer ic. We can control the brightness of this PWM dimmable LED light with a potentiometer.