How to make electric internal roller blinds with up-down switch and end stop control?

Hello. I’d like to fit automatic fabric blinds in my bedroom window. Ordering these blinds is quite expensive, so I thought I’d have a go at making them myself.
I’d like to control them using an up-down switch fitted next to the window (the control doesn’t need to be wireless).
I’ve been looking for a simple and inexpensive controller that would simply stop the blind in the fully closed or fully open position and allow me to stop it at any time. Alternatively, a controller with a timer function would be useful, but I haven’t found anything. So here’s my question. Does anyone know where I can buy such a controller, or would anyone be willing to make one for me?
Many thanks in advance.

Take a look at what Zamel has to offer.

Mate, the question was specifically about the controllers, not the blinds.

Thank you for your replies.
I apologise for the vague question.
I’d like to avoid limit switches and am looking for a controller that will work without them.
Mate, will an overload switch work on a ‘cheap’ roller shutter?
alberciak – He’s answering my question, you’re not. Sorry, but you’re completely missing the point.
Aren’t there any controllers where you can programme, say, 200 revolutions (up and down) and, if it stops, they’d ‘remember’ how many they’ve done and how many are left in each direction?
Thanks again.

Added after 1 [hour] 57 [minutes]:

And I can’t believe there aren’t any controllers like that

The easiest way is to get hold of two small motors, two buttons and an H-bridge – simply set one to ‘up’ and the other to ‘down’, and when you press a button, the roller blind will move. Just a handful of components and a bit of fun putting it all together, but satisfaction guaranteed

Best regards

Thank you for your replies.
I’m looking for a solution that won’t be as expensive as external metal shutters! It doesn’t have to cost 100 zł, but over 1000 zł is a bit much in my opinion.
I don’t like having to hold down a button – it’s simply quicker to use a ‘chain’ and close them manually.
Limit switches are unsightly and difficult to hide.

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I don’t think there is one, though. It’s too expensive and complicated compared to a limit switch or an overload switch.

What might the cost be? Just a rough estimate.

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Stopping at a specific position is achieved by measuring the closing and opening times

I think measuring the time is a good alternative. How should I go about this?

Thanks again.

I would suggest a setup using a microcontroller and a stepper motor; for example, the calibration could involve counting the steps for each window individually and storing the results in the microcontroller’s memory.

Best regards.