BLOG-O-MATIC
Tag: RGB
I built this “Word Clock” for my girlfriend. A handcrafted walnut frame houses an 8×8″ RGB LED panel that shines though a laser-cut steel stencil with the aid of some 3D printed lattices, a diffuser, and a RTC-equipped Raspberry Pi computer.
This is one that I’ve been excited about for a long time. When element14 asked me to put together a holiday special, I knew just what to do. This episode is the most technically complex so far; it covers non-inverting op-amp circuits, low-pass envelope detection filters, buffers, power management, and[…]