New PCB Business Cards
I recently ran out of my PCB business cards. Rather than just get another run printed, I designed a new one. Inspired by my last post on using DMX512 with a fenode board, the new cards are Arduino-compatible three channel controllers with an RS-485 interface.
As DMX is not supposed to be used with potentially dangerous devices, these boards are meant to turn 12V RGB LED strips into cheap DMX fixtures. Why a separate load power input (suitable for a deadman switch) remains on the board is left as an exercise for the reader.
The design files are on GitHub - you too can have PCB business cards with a small amount of KiCad know-how!