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+===== G-ASH03 Shield for Arduino Nano for MARDEC DCC accessory decoder  ======
+[[english|{{  rocrail-logo-35.png}}]]
+[[english|Content]] -> [[hardware-en|Hardware]] -> [[hardware-en#arduino_nano_dcc_shield|GCA]]
+  *  [[mgv-overview-en|The GCA modules]]
+ \\
+^^^^By Peter Giling ^^^^
+\\
+|  {{:gca:g-ash03_pict_01.jpg?300}}  |  {{:gca:g-ash03_pict_02.jpg?300}}  |
+|  the assembled board with standard  \\  connectors for various  \\  GCA interface boards   |   Also only the board is  available  |
+\\
+===== Description =====
+In Arduino world, there are many useful designs for Railroad.\\
+Here is a shield for Arduino Uno to be used as a simple and cheap DCC accessory decoder.\\
+It is based on the MARDEC design of Nico Teering.\\
+MARDEC means  **M**ultifuntional **AR**duino dcc **DEC**oder.\\
+See https://www.youtube.com/channel/UC2ZutrHx-0kQUgmlaIxWwYw  \\
+This shield enables you to use interface boards like GCA76, GCA77,  GCA173  and many others. \\
+Though MARDEC has many very useful options, it is just as described a accessory Decoder.\\
+Which means that for feed-back you still will need LocoNet, CBUS or RocNet to establish that.\\
+Also, unlike most other DCC decoders, it is not programmable via DCC commands.\\
+It needs its own program to do that and is done by connecting the USB port to your computer.\\
+How this is done, is explained in the Mardec manual, but up until now only in dutch.\\
+The software itself runs completely in english language.\\
+Complete program for Arduino Nano, and the manual are available by googling  'MARDEC.ZIP'.\\
+The G-ASH03 is now available.\\
+If you are interested: just download the MARDEC.zip, and unpack it anywhere on your PC.
+Then run the ArCoMora file, and install it in a map of your choice.\\
+This shield has a opto-isolated input for DCC signals, but can also be supplied from DCC power\\
+just by setting the two jumpers.\\
+With jumpers set,  DO NOT CONNECT any power source to PWR1 connector! ! !\\
+===== Features =====