Ash-4
commented
3 weeks ago https://dcc-ex.com/reference/hardware/motorboards/ex-motor-shield-8874.html#stacking-two-ex-motorshield8874s Yes, that is the correct link. Each motor shield requires a power supply. Did you make the modifications for VIN, etc.? After you upload a new sketch with your custom motor shield definition, the tracks require definition after startup, or perhaps in myAutomation.h <=> To see the listing of tracks
No config files or startup logs were attached.
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Moritz created a ticket
Name: Moritz Braig
Email: braig.moritz@gmail.com
Timezone: 1
Software: EX-CommandStation
Version: 4.0.x
Title: Dual stacket EX-MotorShield8874 does not work
Description: Hello DCC-EX Team, I started to get familiar with the DCC-EX platform a few weeks ago. I already have two working setups with a single EX-MotorShield8874, Arduino Mega and a WLAN shield as well as a Ethernet shield instead of the WLAN shield. For my layout I need a setup with two Motorshields and I implemented the setup, which you present here: https://dcc-ex.com/reference/hardware/motorboards/ex-motor-shield-8874.html#stacking-ex-motorshield8874s I changed the solder bridges on the second Motorshield and I wired the "fault" pins directly with the Arduino Mega, as you write in the explanation. See the attached pictures. I also checked the solder-bridges with a continuity tester and could find no errors. I have also my config file attached. With this settings only the unaltered Motorshield is working. With the Web Throttle, also only Track A and B are available. I expect a Track C and D also appear in the command window, but is is not. Only on the lower unaltered Motorshield, both Track LEDs are glow. I tested different configurations but it does not work as expected. All other files except of the config file are unchanged. If I connect the altered shield only and set the Arduino IOs for this board, then the altered shield is working, the other shield is of course off. Therefore I expect, that there is no problem with the hardware. I would be happy, if you can help me with my problem. Thank you very much in advance. Best regards from Germany Moritz Braig
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