Search found 2616 matches

by TerryJC
20/05/2017, 9:55
Forum: Design
Topic: Overall System Design Specification
Replies: 42
Views: 6639

Re: Design Specification Review

Another thing to be aware of is that the BCM chip isn't the only device on the RPi board. When the bells system was failing, I was able to monitor a core temperature of only 48 dec C, but the system was still resetting itself. There are three chips on the RPi that need heatsinks, but even with thos...
by TerryJC
20/05/2017, 7:55
Forum: Design
Topic: Overall System Design Specification
Replies: 42
Views: 6639

Re: Design Specification Review

Oh, should we also create a simulation of our project (perhaps as a video) that we can show to visitors for educational value? I think any ideas to enhance the educational value of the Project are welcome. I have to ask though what would the video show that the visitors can't go outside and see for...
by TerryJC
20/05/2017, 7:52
Forum: Design
Topic: Overall System Design Specification
Replies: 42
Views: 6639

Re: Design Specification Review

Do we need to keep remote devices below 35 degrees C? This might be an additional expense, especially since Pis can run at up to 82 C and sensors don't give out much heat (probably). Actually the range is 0 to 70 deg, see https://www.raspberrypi.org/help/faqs/#performanceOperatingTemperature . Even...
by TerryJC
19/05/2017, 16:01
Forum: Design
Topic: Overall System Design Specification
Replies: 42
Views: 6639

Overall System Design Specification

All, I have just posted Issue 0.2 of the River System Design Specification to the Development Website (see http://www.hadrian-way.co.uk/WMT_River_System_Development/Design/WMT_River_System_Design_Iss_0.2.odt ). Please review and comment on it. Some points: I have recorded all changes in the document...
by TerryJC
17/05/2017, 11:54
Forum: Design
Topic: Brainstorm Meeting 2017-05-16
Replies: 2
Views: 816

Brainstorm Meeting 2017-05-16

I have now updated the Devices Comparison document as discussed yesterday and renamed it Devices_Comparison_V0.2.odt. It is available on the website in the Design folder, as discussed. I have added the comments that we agreed, including a new table of controlling devices as requested. Please add to ...
by TerryJC
17/05/2017, 10:23
Forum: WMT Model Railway Lighting System
Topic: Historic Information
Replies: 0
Views: 1145

Historic Information

This post is to provide links to all the historical information that exists to document the work that was done over the Winter of 2015/2016 to develop the Lighting Control System in the Model Railway. If new work is commenced on the Model Railway Lighting, but under a new Project then a separate thr...