Today we had the Ocklanders and R. Lopez helping us with the scenery. They did a ton of work. Greg fixed broken scenery, Claudette dusted off every single building in the city, and Robert refreshed the “green” grass/bushes in the mountain.

After talking to tech support at NCE: the Button Board has a bug and they don't support non-momentary switches like the rotary toggles we use. It MUST be momentary.

<cold shower>

Proposed hack to verify: add a push button on the common ground of leading to the rotary toggles. Operation mode is thus turn a toggle then push the button to simulate a momentary push.

Longer term: my first reaction is to just simulate the Button Board using an Arduino. Must take 16 digital inputs and emit the proper 2-bytes sequence over serial.

I ordered this: http://amzn.to/2i8bOAQ 

Relay: TRS-12V-SA-L20

Datasheet: looks similar to this http://www.micrus.ru/pdf/trs.pdf 

On the bottom there's a pinout drawn that is similar to the pinout from the datasheet:

  ⇐ This is the BOTTOM view. Invert vertically from top.

How to wire it for the layout:

After repeated failures at trying to control the T330 turnout using an NCE Switch-8, I finally crawled under the layout and I find this:

That is definitely not a Tortoise turnout motor, which is what I had been planning for all along.

Doh.

Double-doh.

Turns out the layout uses:

We did a "simulation" yesterday at Randall using JMRI, a simple Jython script and time-based automation as indicated previously.

For the Passenger automation:

• We used the half/full/half speed scheme.
• Block-wise, the idea is to stop on 370 on the Summit.

For the Branchline automation, Jim decided on a "full speed" scheme, relying on DCC momentum.

Whenever possible I'd like to use block detection rather than IR sensors. It may not be a choice for the Branchline, but that remains to be seen by crawling under the layout and decoding the Branchline panel more closely. If not, I'll do IR sensors.

Simply plugging the NCE USB to Power Pro resulted in no status from AIU card whatsoever.

Consensus is that will never work on the USB (when it ironically works on a PowerCab, but only with one AIU on cab address 4).

Bottom line for Randall I'm going to have to switch to RS232 with a USB adapter.

https://sites.google.com/site/markgurries/home/nce-info/nce-usb-limitations

• All forums and sites point to the same Keyspan USA-19HS adapter: http://amzn.to/2dBYkNY  … $25.
• Need a Straight (not null modem) RS232 cable, 50 ft will work here.

This is where what should be simple becomes overly complicated.

The easy solution is to use NCE Switch-It (1 tortoise) or Switch-8 (8 tortoise) control.

There are a few issues.

This takes power from the track bus or external supply.

• Know issue ⇒ Do NOT take power from same booster powering the same block that is being switched. If there's a short when throwing the turnout, it will remove power from the switch-8 which consequently won't be able to finish switching.
• Power MUST be from either a different booster OR use the direct DC power plug.

The GGMRC officially donated the layout to the Randall Museum.

L'important ce n'est pas la chute, c'est l'atterrissage.

Now it’s time to (re?)build a relationship and get this going.

Freeze frame. How did we end up in this situation?

The opinion below is solely my own and not the official views of the GGMRC. It is based on my own recollection of events and my own biased opinion on such events.