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Remote Control Circuits
Remote Control Circuits
IR Remote Control Jammers
IR Remote Control Testers
A photodiode, SFH2030 as an infra red sensor. A MOSFET opamp, CA3140 is used in the differential mode to amplify the pulses of current from the photodiode. LED1 is an ordinary coloured led which will light when IR radiation is being received. The output of the opamp, pin 6 may be connected to a multimeter set to read DC volts. Infra red remote...
This unit can be useful as a short-range, single-channel remote-control. When the pushbutton in the transmitter circuit is briefly activated, the LED D1 in the receiver illuminates and an optional beeper or relay can be operated. Circuit operation is based on a non-modulated 35KHz frequency carrier transmitter, and on a high-gain two-stage 35KHz a
IR Remote Control Extender circuit diagrams
This is an improved IR remote control extender circuit. It has high noise immunity, is resistant to ambient and reflected light and has an increased range from remote control to the extender circuit of about 7 meters. It should work with any domestic apparatus that use 36-38kHz for the IR carrier frequency. Please note that this is NOT compatible
Infra Red Remote Control Extenders
Infrared Remote Control Stepped Attenuator
I don`t like motor potentiometers, especially if there are cheap and small attenuators but big motors. But big blue alps like ebay item No..
DIY Canon RC-1 IR remote control clone
This site describes how to build a low-budget DIY Canon RC-1 infrared remote control clone based on an AVR microcontroller..
IR Remote Control Switch
Today we are going to explain about a simple circuit which is used to switch on/off any electrical device remotely through a relay using the normal TV/VCR..
Home Appliance Control Using TV Remote
This circuit is designed to switch on/off any home or industrial appliance by using the TV/DVD remote controller. The circuit can be operated up to a dist..
Infrared Remote Control Jammer
This 555 timer circuit Remote control Jammer device it s useful when we need to block someone to use the remote control (children that change frequently t..
Infrared Remote Control Tester
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 train whena signal is present. Other detector modules that an inverted output is in the...
IR Remote Control Receiver
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..
IR Remote Control Tester
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 photodiode directly to the input of an oscilloscope, but has the advantage that no oscillosc
On-off Infrared Remote Control
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,..
RC (Remote Control) Switch
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
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
remote controlled fan regulator
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..
Simple Remote Control Tester
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.
TV Remote Control Jammer
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..
IR Remote Control Circuits
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 applications Consider also Bluetooth and wifi as another strong point now as this is leading...
GSM Remote Control 2 IN and 2 OUT DTMF
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..
200 solar charged remote control lawn mower
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 others how to build a 63W solar panel and solar powered system. There are a total of 14...
off infrared remote control schematic
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 number 1N5352 will work.
TV remote control blocker/jammer circuit diagram
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 transistor acts as a current source supplying roughly 25mA to the infra red LEDs. To increas
Telephone operated remote control using PIC16F84A microcontroller
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 do the following: IMPORTANT: This circuit has been tested by me and found to work correct
remote control sckt
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. It can transmit signals up to 15 metres without any aerial. The operating frequency of the
radio remote control RC using DTMF circuit diagram
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. Usual
A simple remote control tester circuit diagram
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. At the same time, the buzzer beeps
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 PHOTOCELL or light, the substances with which this is constructed, its resistance varies w
Remote Control Your Computer
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 controls your program (like mp3 player etc). The action can be any thing like "moving to next so
Infrared Remote Control Switch
Infrared Remote Control Switch Circuit Remote controls, specially cordless type, are very popular nowadays. Here is a simple and..
Infrared Remote Control Tester Circuit
Infrared Remote Control Tester Circuit This is a simple circuit you can build in order to test infrared remote controls. The circuit uses an..
Stepper Motor Circuits
Direction Finder Circuits
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Ultrasonic distance finder circuit
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 measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
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 find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
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 circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
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 circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
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, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
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 calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
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 supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
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. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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