Priced at £15, the Scalloped 10 LED Indoor Outdoor Solar String Lights have customers rushing online and in store in the hope ...

Using only an ultra-bright white LED, red blinking LED, PNP transistor, and a diode, the circuit gives a strong visual indication of current consumption by blinking brighter and more frequently as ...

Blinking an LED with three resistors and a capacitor. Ok, ok… one of the resistors is a light-dependent resistor, but still. In reality, this is a classic relaxation oscillator. The capacitor ...