Showing posts with label remote. Show all posts
Showing posts with label remote. Show all posts

Simple Remote on off Switch Circuit Diagram

Friday, September 26, 2014 | Labels: , , , , , , | 0 comments |
Simple Remote on-off Switch Circuit Diagram. This circuit provides power control without running line-voltage switch leads. The primary of a 6-volt filament transformer is connected between the gate and one of the main terminals of a triac. 

 Simple Remote on-off Switch Circuit Diagram


Simple Remote on-off Switch Circuit Diagram

The secondary is connected to the remote switch through ordinary low-voltage line. With switch open, transformer blocks gate current, prevents the triac from firing and applying power to the equipment. Closingthe switch short-circuits the secondary, causing the transformer to saturate and trigger the triac.

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Simple Remote control tester Circuit Diagram

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This is the simple Remote control tester circuit diagram. When the remote control is not working, first check the battery before, It may be loss.If it is good,so detect transmit infrared light device.However, because the human eye can not see infrared light,so can not know how good or bad.But the photo transistor can use to detect infrared light. 

This circuit so use this photo transistor is the light receiver from the remote control.If it is nice to have the bias current of the transistor BC558.It runs a current flows through the LED,so the LED bright.The remote control that works correctly. The variable resistor VR1 is used to adjust the sensitivity of the circuit.

 Remote control tester circuit diagram
 
Remote control tester circuit diagram
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TV Remote Jammer Using 555 IC

Friday, May 17, 2013 | Labels: , , , , , | 0 comments |
TV Remote Jammer Using 555 ICTV Remote Jammer Using 555 IC

The TV remote control transmits television signals as pulses of frequency around 37.5kHz. Each button on the remote control is pressed or equivalent has a pulse signal codes. This remote transmits pulses of the circuit block of the same frequency as the remote to your TV confuse decoding the transmitted signal.

The heart of the circuit is the 555 timer IC in astable circuit works mode.The output series of pulses at a frequency of 18 kHz to 48 kHz by simply adjusting the 5K potentiometer. What you do is adjust the potentiometer until frequeny jives to its distance from the TV or until the signal is ignored by television.
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Remote Audio Level Indicator

Saturday, April 13, 2013 | Labels: , , , | 0 comments |
The standard degree-indicator circuits which can be available in the market require connections to be made to the output of the player, which may now not be simply accessible. The audio degree indicator circuit described right here take aways this limit as it can be placed on the topic of the participant’s audio system and yet the specified impact can be realised. 

Circuit diagram :

Remote Audio Level Indicator Circuit Diagram

As proven within the circuit, signals are picked up with the aid of the condenser microphone, which get further amplified through the noninverting amplifier built around one of the vital 4 op-amps of LM324. The remaining three, along with 4 op-amps of the 2nd LM324, are used as seven comparators to work as the degree detector, giving seven output degrees via seven colored LEDs. 

The sensitivity of the audio level indicator circuit is also superior by using various the 220k potentiometer. If a nice adjustment is desired, a four.7-kilohm potentiometer is also related in collection resistors with the 220k potentiometer.



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