abstract
The main objective of this project is to make the home appliances user friendly and simpler to access. With the invention of new components in electronics it made the existing appliances more user friendly, simpler to access and also increased their facilities. This project concentrates on Remote control fan speed regulator, Remote controlled switch and Automation of motor pump which will be useful for home.
Now a day's fan become an essential element in our daily life. It is difficult for the old and physically handicapped person to get up from the bed in order to control the speed of the fan. By controlling the speed of the fan through remote enables us to operate from the bed itself. So it is very helpful for the old and physically handicapped persons. This circuit can be controlled from 10 meter’s distance. It uses a 38 KHz’s TSOP 1738 receiver which receive the infrared signal from TV or DVD remote’s. The speed of the fan can be controlled in five steps. Here the variation in the firing angle of triac is used for regulation of speed. In this 2 NE 555 IC’s connected in Monostable mode and a decade counter CD 4017 is used.
Sometimes while watching the TV at night due to drowsiness we may feel difficult to switch off the TV at the switch board we just off it with the remote and left the light without switching off. Even though the TV is switched off with the TV remote it is not completely off it consumes some electricity. So there is wastage off electricity. By using the Remote controlled switch circuit we can completely switch off the appliance like TV, light etc from the bed itself. So we can save electricity. This circuit uses an infrared receiver TSOP 1738 to receive an infrared signal around 38 KHz’s and uses a decade counter CD 4017 and a relay.
At present, most of the people are using the overhead tanks and a motor pump to supply water to overhead tank from underground sump. There are some situations we may forgot to switch on the motor and the tank becomes empty so we may face water problem. And in some situations we may forgot to switch off the motor so overflow of water occurs. It is the loss of both electricity and water. So by using this circuit we can automate the motor i.e. when the water level is below the prefixed minimum level the motor automatically switch on and when the water level is above prefixed maximum level it automatically switch off.