These days, if you want to flash some LEDs, you’d probably grab a microcontroller. Maybe you’d go a little more old-school, and grab a 555. However, [Jacob] is even more hardcore than that, as ...

In this project, I'll make a small circuit capable of blinking lights, on its output we get a digital signal that we can use to turn on and off an external light like an led or relay for bigger loads.

A small satellite launching in early 2021 will test a novel method to track satellites in orbit – using light-emitting diodes (LEDs) that flash to relay its position to the ground. LEDSAT, a ...