Programmable DCC Turntable Controller

Note

Since writing this initial software, I’ve changed tact for my layout and will be using a DCC-EX integrated turntable using the EX-Turntable software instead.

The code for this programmable DCC turntable is still available if it’s of use for anyone, but unlikely to undergo any further development.

This is the documentation for my programmable DCC turntable controller.

• Overview
• Hardware components
  • Arduino Uno
  • ULN2003/28BYJ-48 stepper driver and motor
  • Hall effect sensor
  • Dual relay board
  • Prototype shield
  • Power supply/voltage regulator
  • DCC Decoder circuit
• Software and Logic
  • Startup
  • In action
  • Error checking
  • Decoder base address
  • Position definitions
• Programming
  • Base decoder address
  • Turntable positions
  • Service mode programming
  • Ops mode programming (Program on Main/POM)