Several years ago [Michael Davis] built a charge controller for his wind turbine ... original circuit could be easily replaced with a 555 timer. Since the 555 chip is so ubiquitous, he figured ...

Until now. [ZHut] managed to bring these two worlds together by presenting how to make an Arduino blink an LED in conjunction with a 555 timer. We know, we know. It is hard to decide how to ...

In these applications, a 555 timer can replace the microprocessor and still allow accurate control of LED current independently of input voltage, temperature, and LED forward-voltage drops. At ...