For extra points here is the program. Can you tell where I made the error?
Commands get sent down from the crane control room to the gear room by these LEDs installed in what I think are baking tins...
And here’s what it’s like to stand on the platform outside the gear room while the entire crane slews.
The anchor waits patiently to be let back down.
Big anchor energy. We moved the anchor from the bow of the boat to the stern, and in doing so flipped it over so the marine archeology folks can conserve the bottom side of it.
This end of the room drives the derrick and hoist. Here it’s “luffing” by turning the giant screw threads that go up in to the crane.
My beautiful boy...
I am calling this a success. I didn’t get the new module perfectly aligned but I think (as you’ll see in my next post) I eventually got it close enough. Being without the HP factory tooling to bend the leads jjjuuuust right and compounded by using a replacement module of not exactly the same package means it’ll never be completely factory perfect. I’m OK with that.
Here’s a better photo of the modified LCD driver. The LED backlight driver is an ADD5201 (https://www.analog.com/media/en/technical-documentation/data-sheets/ADD5201.pdf). I changed the configuration resistors to put it in direct-PWM mode then tied the backlight enable and PWM pins high (to the 3.3v rail conveniently generated inside the driver IC).
Oh and instead of screws in a bunch of places it has brass taper pins, shown here under the microscope :/
Everything has been cleaned, rinsed and dried and I started reassembly but I’ll probably finish it tomorrow.
There are black zones of shadow close to our daily paths.
Sometimes Kiwicon organiser.
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