I am new to this board and just getting back into model railroading after a 20+yr absence. I am trying to get DCC++ running and am having problems – I can’t get power to the tracks. The LED’s are not lit and there is no voltage measured with a multimeter on the screw output terminals I found a 2017 thread that described my problem and tried those suggestions to no avail. I sent a <1> via the Arduino Serial port monitor and get no response – same thing with an <s> Other info: I have an Arduino Uno connected to an Arduino Motor Shield - they are both actual Arduinos not clones I cut the VIN pin on the Motor Shield - the MS is powered by an external PS rated at 12V that measures 14.55V DC I have 14.8 volts at the input screw terminals On the Arduino the one LED is solid green, and the other LED is blinking yellow. Jumpers are installed pins10 to 12 and 5 to 13 The Arduino IDE sees the Arduino and reports the BN and other status info The DCC++ program seems to see the Arduino – when the Arduino is unplugged it complains The baud rate is 115200 Thanks in advance for the help Andy
Hi Andy, I found this video very helpful (I ignored the parts about the Raspberry Pii). The testing procedure might shed some light on what's not working. I had trouble cutting the trace on the motor shield, so I just bent the pin back. Good luck, Joe.
Is there any possibility you cut the trace too deep. I read where one person said they did that. I'd also use Dex's installer and put the sketch on the Arduino again... http://1fatgmc.com/RailRoad/DCC/page-4.html How do you have the multimeter set when measuring voltage on the main and program track output? Are you connected to the Arduino Uno with a Raspberry Pi or a computer. If the trace is cut I believe the Uno gets its power from the Pi or computer. Sumner
If it is the 'L' led blinking, your program didn't program. The RX & RT indicates you have network traffic. Check in your device manager if the Uno appears under the coms port.
Hi everyone, Thanks for all the help!! I used the video that Joey Paul suggested and got it working. I used the original Arduino and a new MC. I had watched a few videos on installation but unfortunately not that one!!! As Joey said it is the best for debugging!!! The sections about testing without the MC and DCC++ were especially helpful. I will eventually try the other MC and report back but for now it is back to layout building!! How do I determine if I cut the trace too deep? One other question - I eventually plan to use a Raspberry PI and maybe my phone for control. Does anyone have suggestions for an inexpensive touch screen for the PI? Thanks Andy
There are a lot of them in different sizes and price ranges. If you want one with a bezel, try this: https://www.amazon.com/dp/B07QLMBGZ...olid=25978BMTOENJI&psc=1&ref_=lv_ov_lig_dp_it I've also used the little 3" ones
