Hi , I was halfway through the process of making 3 DCC to Arduino adaptor boards using Vero board when I lost the guy who was helping me with it all , I have little electronics experience and I need help in translating the attached circuit diagram for use with Vero board ie I need to know where to position the components and where to make cuts to the board ,I have all the components and the Ver
View attachment 33120 o board ,any help would be most appreciated ,
Actually, Gary (PCTrainMan) hasn't "lost the guy who was helping", he said he didn't
want any more help. I know, because I'm the person he is referring to in his post, quoted above...
Gary sent me this email message on 19/Mar/2017:
"Hi , Thank you for the diagram but I would'nt worry about me and my layout anymore as i've decided to abandon any more work on it other than finishing it scenically , I spent a whole week trying to find another short and did find it in the end and then found that although the points are receiving power from the DCC bus the track (blocks ) are not it would seem that the reader boards are not acting as a return path for the current and to be honest i've had enough i'm fed up with forever chasing problems and forever trying to figure out what is going on , I thank you for your help and i'm sorry to have wasted your time , Gary ."
I was in the middle of preparing the Veroboard Layout, when Gary broke off communication. I finished it anyway, but didn't send it to Gary because he seemed very unhappy, and adamant that he didn't want to proceed with the Automation project.
Contrary to what Gary told me, he searched the Internet for a Veroboard Layout of the DCC to Arduino Optocoupler. I know, because on 18/June/2017, Gary found a complete kit of how to build it (Including the Veroboard Layout Diagram), on a website that I helped set up in the middle of April, 2017.
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On 17/April/2017, Gary Posted...
Hi , I have the attached diagram given to me before I lost the guy who was guiding me through the construction of some electronics modules for model rail and Arduino , the simpler of the 3 modules required I have been able to assemble without any further help but I have a couple of questions on this one of which I need 2 and intend to construct them on the same piece of Veroboard , firstly i'm asuming that the Green component on the right hand end is simply a 3 way screw terminal block ? and my second question is does the 18 volt DC supply as well as the uncouplers Red and Black wires both go to this block ? and lastly how do I determine which way around the Darlington Transistor (TIP 120) goes ?.
As the person who drew the Veroboard Layout, the reason for using the Colours Black-Red-Blue is not to match any particular Servo Extension Lead, but to match the Colours of the 3-Pin Header on the Arduino I/O Shield which is at the other end of the Servo Extension Lead.
Gary told me that - since his Stroke - His Memory and Concentration had been adversely affected, so the idea was to use the same Colours at each end, rather than worry about what colours the Wires were. Manufacturers of Servo Extension Leads have different Standards, and by using the same Colour as the Header Pins, I reasoned that I didn't need to concern myself with the Wiring Colours.
I'm not sure what Gary asked about the Screw Terminals, because as far back as 08/February/2017, I sent Gary a Picture of the Green Screw terminals, and a Link to an eBay Seller, where he could buy them. These are the same Screw Terminals that Gary should have used to build the Veroboard modules he was referring to, when he said:
... the simpler of the 3 modules required I have been able to assemble without any further help...
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Later on 17/April/2017, Gary Posted...
Hi , Thank you for your reply , I did'nt do the drawing it is how it was supllied to me...
Yes, I never supplied Circuit diagrams to Gary, because he had told me he didn't really understand them, and he opened this Thread with the statement:
...I have little electronics experience and I need help in translating the attached circuit diagram for use with Vero board...
I reasoned that since he didn't want them, there was no need to provide them, as he wasn't going to look at them, or - worse - they might just confuse him.
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Later still on 17/April/2017, Gary Posted...
... I don't think the last of the 3 projects will be any more complex than this one as it is just a DCC to Arduino interface using a fast optoisolator and I think a Diode and some resistors but i'm not sure as I was never given a drawing for that one .My electronics knowledge and circuit diagram comprehension is only basic at best so I would very much appreciate if you could indicate where I need to make cuts to the veroboards tracks...
It should now be clear why Gary didn't get a Veroboard Layout for the DCC to Arduino Optocoupler from me - He told me he didn't want it on 19/Mar/2017.
However, he didn't find my Veroboard Layout on the Internet, on 18/June/2017 (Which is after the last Post in this Thread.
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Later in the same Post on 17/April/2017, Gary says...
... I forgot to say in my first post that space is not a consideration I need to worry about so I intend to mount the Vertical resistor flat...
Unless Gary has purchased more Veroboard, I shoe-horned everything Gary eventually told me about (The 2 Electromagnetic Uncouplers were a late addition) into all the Veroboard that he purchase. There is enough spare for 1 Module for any of the 3 Functions, but there is not sufficient for any Single Module to have extra Holes.
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I'm guessing that the reason Gary hasn't been back here, is because on 24/Apr/2017, Gary started the same Thread here:
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http://mrlforum.co.uk/forums/index.php?/topic/3470-dcc-optoisolator-to-arduino-interface-board/
And, on 27/April/2017, Gary started the same Thread here:
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http://www.electro-tech-online.com/threads/arduino-to-dcc-circuit-help.150749/
Anyway, as you can see from this Thread, plus the other 2, it would seem that Gary has now collected sufficient information to complete Modules for all 3 of the Functions he needs.
For what it's worth, I haven't seen Gary come back in any of these Threads that he started, to close them off as 'Resolved'.