This article tries to get you some idea how to interface IR remote controllers to computer. Possible applications could be controlling your computer your TV`s remote control or controlling your VCR using computer. This circuit was posted to sci. electronics newsgroup long ago. This circuit has been very useful to me because I based my first IR remo
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te control experiments on this circuit. With some little modification the transmitter part of this circuit can be used with computer. The idea is to cut the wire going to 7555 IC pin 4. Connect the wire end coming form receiver to computer input and the end going to 7555 chip pin 4 to one computer output (computer inputs and outputs should be TTL level signals). This circuit is a good example how to do the computer to IR remote interfacing in both ways. All you need is a simple program for sampling the data coming form receiver (few kHz sample rate is enough). When you want to control something, then just send the sampled data to the transmitter part of this circuit. The circuit can be easily connected to PC parallel port for your experiments. If you are experimenting only with reception, then one good idea might be to connect the receiving part of the circuit to joystick port, because there are easy to use input lines and also poer for the whole circuit. Newsgroups: sci. electronics From: dplatt@ntg. com (Dave Platt) Subject: Re: Infra Red Retransmitters - For Remote Controllers. Organization: New Technologies Group, Inc. Palo Alto CA Date: Mon, 28 Feb 1994 04:00:25 GMT >1)Several receptors in parallel (arranged in order to have at least >270 degree range) You can probably use the little receiver modules made by Sharp, and marketed by Radio Shack (among other places), in a sort of wired-OR arrangment. Sony TV sets do this...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
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Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
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In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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