Remote Control Circuits
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The infrared detector module (GP1U52X) (Radio Shack 276-137) provides a 5 volt TTL pulse train corresponding to the digital code to the button of the remote control. In the lower circuit, the module output normally low a signal and a positive going pulse.... -
With many audio systems consisting of separate units, you ll often ?nd that due to economic reasons only the amplifier has a remote control receiver modul.... -
This small circuit is ideal for checking the basic operation of an infrared remote control unit. The circuit is based on the brilliantly simple idea of connecting a piezo buzzer directly to an IR receiver IC. This method is almost as simple as connecting a.... -
Most homes today have at least a few infrared remote controls, whether they be for the television, the video recorder, the stereo, etc. Despite that fact,.... -
It is sometimes necessary for an RC (remote control) model to contain some kind of switching functionality. Some things that come to mind are lights on a.... -
Remote Control Mains Switch As the only electronics engineer in my family and circle of friends, it is sometimes not possible to evade an appeal for help .. -
Using this circuit, you can change the speed of the fan from your couch or bed. Infrared receiver module TSOP1738 is used to receive the infrared signal t.... -
In the circuit here it simply biases the BC558 which, in turn, makes LED D1 flash in sympathy with the telegram from the remote control. The preset in the circuit determines the sensitivity... -
This circuit confuses the infra-red receiver in a TV. It produces a constant signal that interferes with the signal from a remote control and prevents the.... -
This is where truthfully you need to migrate to pic micro and possibly look at compilers such as offered by proton Smart which incorporate Sony IR in and Phillips RC5 codec`s But it is the safest particularly if you intend to use this for Security aware.... -
h5. Introduction In this post we present the last application created from the development of the modular remote control we started describing in the issue of April.... -
Create a device that did not rely on gasoline, was simple to operate, could be used as a backup energy source, and to share with others how I built the device. The how-to video series is setup very similar to my previous large project which was showing.... -
As per the note on the schematic IC-2 is a 74HC74 TTL chip, look up the data sheet and it will show you what pins 7 and 14 are. The note for IC-3 is down lower its an AC optocoupler part number MOC3041. D2 is noted as a 15volt. 4 watt zener diode, a part.... -
Just point this small device at the TV and the remote gets jammed. The circuit is self explanatory. 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam. The.... -
You can test the board now. For example set the DIP switch to Switch1 ON, Switch2 OFF (15 sec delay) & switch3 ON, switch4 OFF (4 rings to activate half for switching ON). If you want to switch ON relay 1 (connected to RB0 of main circuit) then you have to.... -
The miniature transmitter module shown in Fig. 1, which just measures 34 mm x 29 mm x 10 mm, can be used to operate all remote control receiver-cum-switch combinations described in this project. A compact 9-volt PP3 battery can be used with the transmitter.....
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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.... -
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.... -
At this circuit you can give a variety of utilities, from an alarm, to open a door, turn on a light in the garden or courtyard, and so on. Your imagination has the last word. HOW IT WORKS: The operating principle is based on the properties of a photoelectric.... -
Imagine you are relaxing and reading your favorite novel while listening to music on your computer, suddenly you want to skip the current song or want to pause your mp3 player. Infrared Software : This decodes the electrical signals and takes action to.... -
Infrared Remote Control Switch Circuit Remote controls, specially cordless type, are very popular nowadays. Here is a simple and.... -
Infrared Remote Control Tester Circuit This is a simple circuit you can build in order to test infrared remote controls. The circuit uses an.... -
This small InfraRed Remote Control Tester circuit is used for checking the operation of an infrared remote control unit. The circuit is based on the idea of connecting a piezo buzzer directly to an IR receiver IC. The TSOP1738 integrated IR receiver accepts,.... -
A very interesting remote controlled alarm circuit using TSOP1736. Routing of an electric cable to attach a calling bell switch near the bed of an old age/patient is not a good idea. Here is an ultra simple battery operated remote controlled alarm to help.... -
It is often required to switch electrical appliances from a distance without being a direct line of sight between the transmitter and receiver. As you may.... -
An IR Remote Control for controlling home appliances can be easily made using Decade Counter CD4017, 555 Timer and TSOP1738 infrared receiver. By using this circuit you can easily control your home appliances using your TV, DVD Player remote control or using.... -
The prototype for this model is one of a `DSG` class of 24 locomotives built in 1981 by Toshiba for the New Zealand Railways. These locomotives weigh 56 tonnes and have two diesel engines, providing a total of 750kW. In more recent years they have been.... -
A teleremote circuit which enables switching on` and off` of appliances through telephone lines. It can be used to switch appliances from any distance, overcoming the limited range of infrared and radio remote controls. The circuit described here can be used.... -
This is my personal website and here you`ll find some of the projects I develop on my spare time, many of them related to electronics and/or Linux. This website is one of these projects. There`s also a section with pictures of places I visited and a....
New Circuits
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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.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
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.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
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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