δ1 - Relay-based R/2R stepped attenuator

[Grahame]

Ooh, this does look interesting ....

Introducing δ1 (delta1), the first of a series of application modules for the LCDuino-1.

I will add more info here, but for now here is a 3D render "teaser" of the PCB:

The LCDuino-1 I/O processor - Page 20 - Head-Fi: Covering Headphones, Earphones and Portable Audio

[nattonrice]

256 steps is pretty huge