https://github.com/hzeller/rc-screen
Projector screen, operated by projector remote control.
https://github.com/hzeller/rc-screen
Last synced: 8 months ago
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Projector screen, operated by projector remote control.
- Host: GitHub
- URL: https://github.com/hzeller/rc-screen
- Owner: hzeller
- Created: 2014-08-04T16:43:20.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2017-04-22T22:21:25.000Z (over 8 years ago)
- Last Synced: 2024-12-29T13:26:19.235Z (9 months ago)
- Language: C++
- Size: 335 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Remote controlled projector screen
==================================
Function
--------
Remote control for projectro screen on an Attiny 24.
Reacts on remote control signal from Epson EMP-TW600 projector.
- Remote control ON button brings screen down (so when the projector is switched on, screen comes down)
- OFF button brings screen up (projector off, screen up)
Also, the ON button in fact toggles the screen - that way it is possible to
move up the screen while the projector stays on (in my case, the screen covers
a sliding door, so that is convenient :) )
Inputs
------
- IR-receiver (some common TSOP38 or similar)
- rotation detector of an encoder wheel via reflective optical sensor (CNY70)
(via "software defined" Schmitt-Trigger input: using a comparator and a
digital output to bias that).
- end-switch
Outputs
-------
- motor driver in h-bridge configuration (754410 or similar)
- bias-output for CNY70 Schmitt-Trigger input.
- status LED
The encoder wheel is written in PostScript
https://github.com/hzeller/postscript-hacks/blob/master/encoder-wheel.ps
Here a (bad quality recorded) example:
https://www.youtube.com/watch?v=lvHZYmplDkQ
There is no PCB or something, just directly raster-boarded; the screen is
a IKEA Tupplur blind.
![Screen Assembly][assembly]
[assembly]: https://github.com/hzeller/rc-screen/raw/master/img/assembly.jpg