You can also program them to close when you turn on air conditioning so that the sunlight does not add heat inside your home. Optimise lighting and sunlight conditionsĪutomatic curtains can be programmed to close when you are watching TV to provide optimal viewing experience. This can save you a significant amount of money on heating and cooling bills. So, you can program them to open up when your home gets warm, and close when either your home is cooler or the outside is very cold. Ventilate your home based on temperature from sensorsĪutomatic windows connected to sensors in a home automation system can keep the windows closed or open based on the temperature inside and outside your home. With automatic windows connected to home automation, you can have the system close all the windows at the touch of a button on your smartphone or a remote. Hence, many of us may get lazy and leave the windows shut, hence reducing ventilation. When it starts raining or when you want to close your windows for the night, it might be a chore to physically reach every single window and close it, especially if you have a large house. Open and close all your windows at the touch of a button Let us take a look at how automatic windows and curtain can make your life easier. However, when these actuators have the ability to interface and integrate with a home automation system, it opens up a wide range of possibilities. These devices are also available without interfaces for home automation integration, when they may be simply called powered or motorised windows or curtains, which reduce manual effort with the help of electric or hydraulic actuators. Two useful components which can be incorporated into a home automation system are automatic window openers and automatic curtains. Home automation makes a lot of chores much easier and more efficient. The magnet for actuating the reed switches is a rod magnet with a hole in the middle (order number 503659), and the chain of the Venetian blind is fed through this hole.When buying a newly built home or retrofitting an existing home, you might have heard of home automation as an optional premium feature. An O-ring is fitted to the pulley to provide sufficient friction with the drive chain of the Venetian blind. Diodes D2 and D5 prevent the outputs of the 555 ICs from being pulled negative when the relay is de-energised, which could otherwise cause the timer ICs to malfunction.Īll components of the mechanical drive come from Conrad Electronics : a motor with a reduction gearbox (type RB32, order number 221936) and a pulley (V-belt pulley, order number 238341) on the output shaft. The rest of the operation is the same as described above for opening the blind. Now the motor starts running in the other direction. The timer clock removes power from RE3, which causes a trigger pulse to be applied to the other 555 timer (IC2) via R5 and C4. If the reed switch does not operate for some reason, the relay is de-energised anyhow when the monostable times out (time delay = 1.1 RC approximately 5 seconds). When the magnet reaches reed switch S1 (‘Open’), the 555 is reset. IC1 (a 555) then receives a trigger pulse on pin 2, which causes its output (pin 3) to go High and energise RE1, which in turn causes the motor to start running. When the timer clock applies power to the 230-V (120-V) relay RE3, the voltage at the junction of C1 and R1 goes high. In the quiescent state, relays RE1–RE3 are de-energised and the motor is stopped. The circuit works as follows (see Figure 1).
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