This circuit does all that and more by jamming most IR remote signals. The circuit releases a flood of pulsing IR light that confuses the reciever by corrupting the data stream.
http://aaroncake.net/circuits/jammer.asp
This remote transmits a tone using an infa-red LED. This tone is decoded by the receiver. Since the receiver only switches when it hears the tone, there are no accidental activations.
http://www.aaroncake.net/circuits/irremote.asp
This transmitter is designed to work with the next circuit as a remote control transmitterand receiver. It is only a single channel and you could once get multi-channel chips for the whole job. However ultrasonics have fallen out of favour commercially so I think most of these chips are now obsolete.
http://www.4qdtec.com/ultra.html
The PC board used for the USB Sensing Power Switch can also be used to build a remote mains relay. This can be used for switching mains power to lights or appliances using a remote switch (or relay) linked by low-voltage wiring. It can also be used for controlling security lights from the relay contacts on a PIR sensor.
http://www.siliconchip.com.au/cms/A_111083/article.html
Here is a handy gadget for test- ing of infrared (IR) based re- mote control transmitters used for TVs and VCRs etc. The IR signals from a remote control transmitter are sensed by the IR sensor module in the tester and its output at pin 2 goes low. This in turn switches on transistor T1 and causes LED1 to blink.
http://www.electronic-circuits-diagrams.com/testimages/testckt2.shtml
Here is a handy gadget for test- ing of infrared (IR) based re- mote control transmitters used for TVs and VCRs etc. The IR signals from a remote control transmitter are sensed by the IR sensor module in the tester and its output at pin 2 goes low. This in turn switches on transistor T1 and causes LED1 to blink.
http://www.electronic-circuits-diagrams.com/testimages/testckt2.shtml
The only thing that was missing was a remote control to switch On or Off my Media Center. After I searched on the net to buy a complete remote control system, I saw that the price was a little bit high (about 90 euros). I checked my stuff to find my old 7-in-one remote control that I had bought 2 years ago and I started to build my own remote control receiver circuit.
http://www.serasidis.gr/circuits/InReCoMe/InReCoMe.htm
Here is a circuit of a remote control unit which makes use of the radio frequency signals to control various electrical appliances. This remote control unit has 4 channels which can be easily extended to 12. This circuit differs from similar circuits in view of its simplicity and a totally different concept of generating the control signals.
http://www.electronic-circuits-diagrams.com/remotecontrolsimages/remotecontrolsckt5.shtml
This project allows you to take the video recorder and satellite receiver remote controls upstairs, and operate the equipment from there. There is no additional cabling to install, the signal being carried along the existing coaxial aerial cable linking the two rooms.
http://www.web-ee.com/Electronic-Projects/projects/remote_extender2/index.htm
This project allows one to take the video recorder and satellite receiver remote controls upstairs, and operate the equipment from there. There is no additional cabling to install, the signal being carried along the existing coaxial aerial cable linking the two rooms.
http://www.web-ee.com/Electronic-Projects/projects/remote_extender1/index.htm