With cycling safety in mind, I bought a pair of low power red LED ... Flashing is legal these days, so they will be flashing. However, a flashing load might modulate the headlamp, so there has to be ...

It is a 555 LED flashing circuit? Yep. How about a hex counter ... Is it one of those old school 30-in-1 or 50-in-1 “Science Fair” kits with the jumper wires and the springs?

Using this simple Christmas LED lights decoration circuit, you can make an 18 LED flasher to decorate the Christmas Tree. The White, Blue and Red LEDs flash at different rates to give a colorful ...

Note, there is a flasher version ... This is the basic idea of the circuit My cunning idea (now proved to be not-so-cunning) was to have constant current supply to a capacitor and load it with an ...