This, of course, means an I2C programmable oscillator in the form of an LPC810. [kodera2t] built this circuit after reaching for a 555 timer a few too many times. It’s a one-chip solution with ...

Using a 555 calculator, he designed a clock circuit that would run at 11.99 ... It would be easy enough to interface this with an oscillator, an IR LED, or a laser for long-range control.