With the Dcc Monitor you can “SEE” the DCC packets transmitted in your layout tracks ! Your just need an Arduino Uno and some skills in electronics.
- The Arduino collect continuously Dcc packets from tracks (it reads 0 and 1 bits)
- Every second the Arduino send packets to the computer through the serial port (emulated on USB)
- Dcc Monitor application on computer translate raw packets and display information on the screen.
Dcc packets seen on an oscilloscope
Translated packets in the application
Components used and diagram
- 10K resistors (x2)
- 1K resistor
- Diode 1N4148
- Optoisolator 6N137
- LED 5V
- Screw terminal
- Pin headers
- Oscilloscope probes
Source : http://www.mynabay.com/