Here is an update to my program. In the previous version I made a beginner's mistake, ie an endless loop when shortcircuit is detected. Below I...
..I am most surprised too :) The DCC signal actually is a modulated DC current (where the polarity may be inverted, hence the relay). The library...
I dimensioned the pcb so that 2 can be made out of a standard 100x100mm board (used by most PCB fabs). The board supply voltage may be anything...
Below is a revised schematic for the autoreverser (no essentials have been modified, addition of a 5V regulator, diodes and caps, and a few...
Here the software for the above schematic: //Autoreverser 1.0 (2020-12-25) // DCC Isolated Autoreversing circuit for turntable track // A0 pin...
Software to follow, but that will be a very small amount of code. The code published on the above Github page is flawed. I will do some testing...
..and finally here is the schematic for a ACS712-based auto-reverser. Since the ACS712 is modular based I used two connectors (X2-1 and X2-2) for...
Hi Bob, sure a different stepper modus is possible: in my pcb there are solderpads for MS1 through MS3. If left open, then "full step" (default)...
https://github.com/normhal?tab=repositories ;)
Hi Bob, many thanks for your query: yes indeed things for me are improving; still needing domestic nursing care for a week or two because of the...
Bob, what model of ACS712 are you using? If it is a 5A model then sensitivity (the amount of output voltage in mV/A) should be 185. For the 20A...
Very nice visual representation Sumner! But even in your first drawing, an autoreverser would be able to set the polarity of the turntable...
Yes sure Sumner, as soon as it is ready I will publish it here. And I will design it as a stand-alone controller pcb; much more versatile then...
Interesting question. If a loco, moving forward (cab foward) on a track, is lifted and replaced after turning around 180 degrees, does it still...
Thank you Sumner for that link, I would not have found it. Thanks Bob for the reference to that video. I am glad we seem to agree on a hardware...
If I understand @peteGSX well you are using the software approach: accumulating (pos and neg) the steps performed by the stepper to decide whether...
Thank you for your kind wishes Sumner. In my concept the turntable rotates either, to outgoing tracks, straight through, or reversed. In order to...
Many thanks to the valuable contributors on this topic. I watch this thread albeit from "a distance" since I still am recovering from surgery and...
Hi Bob, many thanks for that information. I will take that into account with my research on a track polarity proof-of-concept. Unfortunately I...
Sure, it is my pleasure to have received this essential requirement "to-do".
