Free Simple Circuit Diagram
To make LED works, you need a voltage source that is higher than the LED’s forward bias voltage, and it’s higher that 1.5V (around 2V for red LEDs). Fortunately, now you can make a LED flasher circuit that needs only 1.5V or a single cell battery to work. Here is the schematic diagram of the circuit: The core of this […]
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LED flasher circuit can be built based on 555 IC. Using 555 IC, the flashing rate can be more flexible to adjust. This LED flasher circuit is similar to our transistor flasher circuit, but the flashing period of both LEDs won’t be same. The flashing frequency is determined by C1, R1, and R2. You can try values around 100k for […]
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This simple LED flasher circuit will turn ON and OFF two LED alternatively. The first LED will turn ON when the second LED is OFF for some period, then the first led will turn OFF and the second LED will turn OFF. This cycle will be repeated as long as the battery is connected to the circuit. This LED flasher […]
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Dimmer Switch Introduction Dimmer switch can be used to replace your electrical switch for lamps, heaters, or some types of electric motor. Dimmer switches will control the electricity not only for on-off operation, but they are capable of operating somewhere between “on” and “off”. Dimmer switch actually works by switching the electricity on-off rapidly, and the proportion of on and […]
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