June 7, 2014

DCC Shield

When I first was getting into Arduino, one thing I always wanted to do was create a DCC-controlled Arduino project, but my day job has been pretty much all-consuming.

I ran into my buddy Kevin a few years back and he was thinking the same thing— so I drew up a quick circuit for him to try:



My buddy Kevin beat me to the punch by creating a DCC_Decoder library and DCC_Monitor example sketch:


Fast forward a few years, and I managed to design a shield version of the circuit when I had some vacation time stacked up.  A few weeks ago I got my PCBs and spent about an hour this weekend putting together the first prototype:


After some fumbling with the attachInterrupt API (I'm using a Leonardo), I'm now decoding DCC packets:


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