Where pin is the number of the PWM capable pin you want to write to, and value is the duty cycle between 0 (always off) and 255 (always on). Explain why 0 volts corresponds to 0 and 5 V corresponds to ...

/* serial_pin_control_with_breathing - take commands from serial and light or extinguish leds based on it Demonstration of taking serial commands while doing something else. */ int max_led=7; int ...

Most projects are built on abstractions. After all, few of us can create our own wire, our own transistors, or our own integrated circuits. A few months ago, [Julian Ilett] found a problem using the ...