What [Manuka] gives us is a circuit that is designed to be built into your project or project’s power supply. Using only an ultra-bright white LED, red blinking LED, PNP transistor, and a diode ...

Part 1: Light Touch Construct the first circuit using a single transistor, an LED, a power source, and a resistance. The brightness of the LED will indicate the relationship between the current ...

Probably not, but here is what I tried: Flashing is legal these days ... as I couldn’t find a 4V3 Zener), the Zener pulls the transistor on and lights the leds. The 3n3 capacitor gives the circuit ...

so the blinking only occurs in darkness. Of course, the resistor also has to have a sufficient view of the LED. You might use this as a safety light that only works in the dark. A simple circuit ...