The “two flashing led” circuit is designed for 9 Volts but it works at lower voltages too. In this design we used red leds but by changing the series resistors R1 and R4 you can also use different LED ...

Removing either LED does not break the circuit, either, because current can still flow through the other LED to complete the circuit. In a parallel circuit, all the LEDs you connect will glow no ...

While LEDs are common in voltage detection applications, I have never seen an LED circuit that is dedicated to indicating the presence of low values of current flow. This simple LED current sensor ...

The Fig. 1 example includes LED loads D1 + D2, D3 + D4, D5 + D6 and a power-supply output voltage, with a constant output current, providing the circuit input voltage (V IN).

Discover the step-by-step process of creating a powerful music reactive LED strip circuit in this comprehensive tutorial.