Fun project of the year

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Fun project of the year

Postby Roche » Wed Dec 23, 2020 7:24 pm

This job was too much fun to not do it...

The customer turned up with a board that looked like this:
Start.jpg
Start.jpg (99.25 KiB) Viewed 1264 times

It had been running for about 16 years, but was undocumented and unreliable. I persuaded them to go for the nuclear option, and designed this:
Replacement.jpg
Replacement.jpg (94.99 KiB) Viewed 1264 times

The processor is a P18, with plenty of I/O
It is fitted inside this:
Ferry.jpg
Ferry.jpg (96.89 KiB) Viewed 1264 times

Fun bits included radio calling from each bank, 60GHz radar to detect the bank and anything in the direction of travel, speed control, interlocks with gates and other bits of user interface...

It runs across the Thames, about 50 miles west of London.
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Re: Fun project of the year

Postby ric » Thu Dec 24, 2020 12:05 am

I was going to be sneaky, and use geolocaiton info from the photo to try to locate it, but it was taken by a Ricoh camera with no GPS.
50 miles west of London would be around Abingdon/Oxford wouldn't it?
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
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Re: Fun project of the year

Postby Roche » Thu Dec 24, 2020 10:40 am

It's a little closer to London...
I meant to add - it's a chain ferry; so there is a chain between the two banks and the ferry pulls itself along the chain. All battery powered.
You're correct - Ricoh camera - ancient, waterproof and usefully anonymous!
Roche
 
Posts: 65
Joined: Fri Jul 11, 2014 12:35 pm
PIC experience: Professional 5+ years with MCHP products

Re: Fun project of the year

Postby ric » Thu Dec 24, 2020 12:14 pm

Now you've got me curious.
Wikipedia thinks the furthest uptsream ferry is the "Shepperton to Weybridge Ferry", but it's plainly not that one.
From the width of the river, I assume it's a fair way upstream from there.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
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Re: Fun project of the year

Postby Roche » Thu Dec 24, 2020 12:32 pm

Although it is in the Thames, it crosses between the river bank and an island, so it is not a full crossing. Some of what you see in the picture is an island, so you don't see the entire width of the river. It is on a private estate.
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