Ambi-blinds are automated window blinds that close and open according to sunlight and time of day.
The motivation for designing these blinds was two-fold: firstly, proper exposure to sunlight helps regulate one's circadian rhythm. Ambi-blinds will open up to allow sunlight indoors from sunrise, allowing one to wake naturally with the sun's rays.
Second, Ambi-blinds will close shut when the sun sets, for privacy.
Ambi-blinds are driven with an electric servomotor, using a custom-built circuit with an ambient light sensor.
They are powered by solar battery, and as such do not need to be plugged into an outlet.
Ambi-blinds were created as a final project for MAS 863.13. PCB was designed in EAGLE and fabbed using a Roland Modela MDX-15 from a copper plate.
The circuit is powered by a 5V solar-powered battery. The software runs Arduino customized for the ATTINY84 micro-controller.
Go to the How To Make page to read about the making of Ambi-blinds.