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Remote Control Circuits
Remote Control Circuits
build program remote control
This project is based on integrated circuit from Holtek Semiconductor HT6221/HT6222. Similar parts used to be produced by NEC Semiconductor uPD6121/uPD6122. These ICs are commonly used in television and VCR infra red remote controls, garage door controllers, car door controllers, security systems and other remote control applications. They are cap
rf based remote control robot
Every key pad button generates 5 bit binary code and IC1 sends this code to the IR leds through D1 and D2 diodes. Code is shaped from 6 pulses with 5 gaps. Pulse position modulation PPM technique is used for transferring data. Data information occurs at gaps. For logic 0, long gap, for logic 1 short gap is generated. SL490 includes an auto sta
remote control circuit diagram
tv remote control blocker
This is necessary to set the 10K potentiometer while pointing the device at your TV to block the IR rays from the remote. This can be done by trial and error
stepper remote control car
Stepper motor control circuit Stepper motor control circuit diagram using TLE5206 for remote control car..
building rf remote control
The easiest solution would be to take a cheap wireless toy car take out its receiver module along with its remote and use them in your robot. The other way round is this to make your own RF remote We will be using ASK (Amplitude Shift Keying) based Tx/Rx (transmitter/receiver) pair operating at 433 MHz. The transmitter module accepts serial data a
make a simple wireless remote control switch
Step-by-Step instructions for adding a remote control interface to F/G CED players which can be used with a variety of Atari and Sega joysticks including wireless infrared controllers..
infa red remote control
his 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..
ir remote control tester
As I was developing my IR Extender Circuit, I needed to find a way of measuring the relative intensities of different Infra red light sources. This circuit is the result of my research. I have used 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 photodi
ir receiver toggle switch
long range ir transmitter
Most of the IR remotes work reliably within a range of 5 metres. The circuit complexity increases if you design the IR transmitter for reliable operation over a longer range, say, 10 metres. To double the range from 5 metres to 10 metres, you need to increase the transmitted power four times. If you wish to real i se a highly directional IR beam...
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, who among us has not cursed the light that remained lit after we just sat down in a comfortable chair to watch a good film? This project proposes to solve that problem thanks to its original...
wireless on off switch
Normally home appliances are controlled by means of switches, sensors, etc. However, physical contact with switches may be dangerous if there is any shorting. The circuit described here requires no physical contact for operating the appliance. You just need to move your hand between the infrared LED (D2) and the phototransistor (Q1). The...
Remote Control Server RCS
One of my friends asked me if I could design a circuit for him to be able to remotely power up a server. He has 2 servers and he didn`t want to keep them both on whilst he travelled. He wanted to be able to turn on a server when he needed it. He has one server which is on all the time (web server) to which he RDPs occasionally. The project involve
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, who among us has not cursed the light that remained lit after we just sat down in a comfortable chair to watch a good film This project proposes to solve that problem thanks to its original app
Multi Channel Remote Control System
Here is a hobby circuit of a multi channel remote control system, by which you can control 8 different appliances. The main sections of this multi channel remote control circuit are the RF receiver and transmitter. By using this circuit we can control 8 devices, each of them independently by pressing the push buttons. When the button is pushed, co
5 channel radio remote control circuit based of TX-2B / RX- 2B pair
This article is about a simple 5 channel radio remote control circuit based on ICs TX-2B and RX-2B from Silan Semiconductors. TX-2B / RX-2B is a remote encoder decoder pair that can be used for remote control applications. TX-2B / RX-2B has five channels, wide operating voltage range (from 1. 5V to 5V), low stand by current (around 10uA), low opera
FM Tracking Transmitter Circuit or Remote Control Transmitter Circuit
The circuit of a FM Tracking Transmitter Circuit or Remote Control Transmitter Circuit is explained using 555 IC and and 2N4392 transistors..
Remote Control Circuit Through RF Without Microcontroller
This is a simple type remote control by using RF communication without microcontroller. In this project a remote has been designed for various home appliances like television, fan, lights, etc. It gives lot of comfort to the user since we can operate it by staying at one place. We can control any of the appliances by using this remote within the r
Remote Control Tester Circuit using Infra red sensor IC TSOP 1738
A simple remote control tester circuit with diagram and schematic using infra red sensor IC TSOP1738. An LED will blink when IR waves falls on it which indicates remote control functioning..
IR Widget Consumer infrared remote control capture and visualization
The IR Widget operates in a way that makes it compatible with modern multitasking operating systems. It is able to determine the carrier frequency and demodulate the carrier in the digital or analog domain. The captured information can be used to view, recognize or reproduce the signal. The
A Low-power Wireless Remote Control Transmitter And Receiver
Proximity Sensor-based Remote Control Remote Control Demonstrator Board
Many of todays high performance FPGAs Microproces- sors, DSP and industrial/embedded subsystems require sequencing of the input power PS10 PS11. Historically this has been accomplished: i) discretely using Comparators references & RC circuits; ii) using expensive programmable control- lers; or iii) with low voltage Sequencers requiring resistor d
Sp6691 Remote Control 100khz Infrared Led Driver
Loop stability analysis usually starts from an open-loop Bode plot of the plant under study, e. g. the power stage of a buck or a flyback converter. From this diagram, the designer CAN extract phase and gain data within the frequency range of interest. His job then consists in identifying a compensator structure which will lead to the selected cros
TRF1400 RF TELEMETRY RECEIVERS VHF/UHF RZ ASK REMOTE CONTROL RECEIVER
Ultra-low Power Tv Ir Remote Control Transmitter Msp430f2131
IR Remote Control Extender Mark 3
This Mark3 version of the Infra Red extender is a special version designed to control appliances that use high frequency modulated IR remote controls..
IR Remote Control Modulation Detector
A circuit to extract and measure the modulated carrier of an Infra Red remote control. Note that the circuit does not physically separate control pulses from modulation, but amplifies the completereceived signal allowing the waveform to be displayed ideally on an oscilloscope or a frequency counter. Modulation frequencies between 1kHz and several
Infrared Remote Controls
This circuit will allow you to turn on any piece of equipment that operates on 115 volts ac. The reciever circuit is based on the Radio Shack infrared receiver module(MOD), part number 276-137. It is also available from some of the other sources listed on my Links page. The MOD accepts a 40khz IR signal that is modulated at 4 khz. When a signal is
Infa-Red Remote Controls
Stepper Motor Circuits
Direction Finder Circuits
Power Control Circuits
Motor Control Circuits
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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