LM317 Voltage Regulator circuit
This LM317 voltage regulator circuit has a bridge rectifier. So we can fed 220V/110V AC supply at the input to get adjustable 0-12volt DC at the output.
Speed control of DC motor using PWM with 555 IC
In this 555 timer project, I have shown how to make speed control of DC motor using PWM with a 555 timer IC circuit.
IR Sensor Switch with IC 4017 project
How to make IR sensor switch using the CD4017 IC and 1738 IR receiver explained with circuit. Control light from manual switch & IR Remote.
Motion Sensor Light Switch using CD4017 & IR sensor
In this 4017 project, I have shown how to make a motion sensor light switch using the CD4017 IC and IR proximity sensor with circuit.
Automatic Water Pump Switch ON-OFF Circuit with 555
Automatic water pump switch using the 555 timer IC. The pump with automatically ON and OFF according to the water level in the tank.
Automatic Battery Charger Circuit for 12V & 6V Battery
Automatic battery charger circuit for any battery on zero PCB. Make this auto cut-off charger for charging 12V / 6V battery
LED 220V AC circuit with Calculation
Connect LED with 220V AC supply using a transformerless power supply. Explained how to make transformerless power supply with calculation.
LED Flasher Circuit using RGB LED
This is a 12v LED Flasher circuit using RGB LEDs Explained with LED blinker circuit. Supply12v DC at input and connect Multiple LED strips at output.
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.