Uploaded May 2026 | Updated September 2026, 12 hours ago

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Can you really build your own DCC decoder? Thanks to Geoff Bunza - yes you can! In this video we follow Geoff's design to create an Arduino based decoder on a custom manfactured PCB from NextPCB.

Choose NextPCB for exceptional, dependable electronics manufacturing solutions:
NextPCB: https://www.nextpcb.com?code=LittleWicketRailway
DFM: nextpcb.com/dfm

Geoff's Files:
scalemodelanimation.com
forum.mrhmag.com/post/sma20-low-cost-17-channel-dcc-decoders-ver-6-01-with-soundtriggered-soundstepperdual-motorled-and-12201920
forum.mrhmag.com/post/sma34-more-power-to-sma20-decoders-with-tips-and-additions-12215355

Amazon Affiliate Links:
Soldering Iron: amzn.to/4un16aE
Solder: amzn.to/4txXXUR
Flux: amzn.to/42dItKq

Support the channel by becoming a member or Patron:
youtube.com/channel/UCjSL9gh-CP9cL2grTM4VRCQ/join
patreon.com/LittleWicketRailway

00:00 Introduction
01:54 Next PCB
03:06 Components
04:23 Construction
08:43 Arduino Code
10:05 Testing
11:36 Conclusion