Remote Control Time Delay Switch With Sensor
The infrared remote control is commonly seen around the house nowadays. Its usage can be seen ranging from TV, video player, CD player and so on. Recently, even the fans have employed the usage of infrared remote control. However, all of these infrared remote controls can only control one and...
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| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2005
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| Online Access: | http://eprints.usm.my/57981/ http://eprints.usm.my/57981/1/Remote%20Control%20Time%20Delay%20Switch%20With%20Sensor_Khoo%20Welix.pdf |
| Summary: | The infrared remote control is commonly seen around the house nowadays. Its
usage can be seen ranging from TV, video player, CD player and so on. Recently,
even the fans have employed the usage of infrared remote control. However, all of
these infrared remote controls can only control one and only one electrical appliances
at once. Thus, it will be more useful to design an infrared remote control learning
switch that has the ability to learn the code from different infrared remote control sets
and perform switching operations when data are sent. This project is dedicated to
implementing switching using any infrared remote control in the market. It has a
learning ability which makes it user friendly and eliminates the restriction whereby
the user needs to use a dedicated infrared remote control. The user can use any
infrared remote control to control four of the switches. Apart from that, by using a
light sensor, implemented using a light dependant resistor (LDR) it can also scan the
light intensity from the environment and turn on or off a light as needed. The amount
of light intensity that is needed to turn off the lights can also be adjusted from the
light sensor via a variable resistor. This gives the user freedom to adjust the light
sensor to suit their needs. The design also comes with a door sensor where when
activated, will sense the number of people going into a room. Once the first person
enters the room, it will turn on the light. And when the last person exits the room, the
lights will turn off automatically. Although this project is discussed mainly using
lights, in practice, it can be used with any loads and have been tested with both
inductive and resistive loads. The design is controlled using the Microchip PIC
16F84A microcontroller. The programming is done using the PIC microcontroller
assembly language and the hardware used to flash the hex code into the
microcontroller is the F84 programmer. The program used to flash the hex code into
the microcontroller is Nigel Goodwin’s WinPICProg version 1.91. As for the
switching part, triac switch and relay switch are also discussed here. |
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