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Forum Index : Microcontroller and PC projects : MicroMite Elevator...

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Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9590

Posted: 02:29pm 14 Feb 2017

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Yeah, there is a thing called.....I can't remember the name........something 'Dispatch', which is where you select the floor you want on the panel of buttons on the wall adjacent to the actual elevator-bank, and then a display will point you to the lift to go to. This is over actually pressing a button for a SPECIFIC lift. You tell the system where you want to go, and it will send the closest lift to you, to minimize delays.

That is a very cute system, and efficient.

In my case, I originally set out to build my model out of relay-logic, but once I realised just how many relays I would need, to say nothing of the loom of wiring needed to get that going.....

But still - relay logic elevator controllers were a thing of pure electro-mechanical clicking, thumping beauty.

So then I set out to build my one using shaft sensors for all the floors, but you extremely quickly use up tens of switches and I/O pins, so then the multi-turn pot idea has revived this project a little because the MM has a good resolution ADC. I do like MicroBlock's idea of a single switch per floor, and that I may well still use, as a floor-level sensor, and the ADC multi-turn pot just lets the MM send the cabin in the right direction, and when it knows it is close to where it should be, it slows down, and waits for the signal from the sensor switch.

I am also thinking very seriously about totally re-designing my 'Building', as it is way to big and heavy now. Something smaller would be a better concept for portability and storage of the beast too.

Smoke makes things work. When the smoke gets out, it stops!

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