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Telephone operated remote control using PIC16F84A microcontroller – Circuit Schematic
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 swi...
TV remote control blocker/jammer circuit diagram – Circuit Schematic
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 ...
ir emitter 38khz – Circuit Schematic
ir emitter 38khz
I`ve built a 555 based oscillator to drive ir led at 38khz. I`ve got the circuit wired up and I`ve used my meter on the duty setting to read that it is indeed g...
what relay should i use parallel port – Circuit Schematic
what relay should i use parallel port
Control a car toy. The toy car is controlled via a controller that is connected to it via a wire, so it`s not radio controlled. I would like to use relays to co...
38khz ir transmitter – Circuit Schematic
38khz ir transmitter
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off infrared remote control schematic – Circuit Schematic
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 ...
using doorbell circuit control things radio control – Circuit Schematic
using doorbell circuit control things radio control
Modify it to click and latch a relay when i press the button from any ware in the house. Also if it is somehow possible unlatch the relay when pressed again. Im...
Infrared receiver by LM1458-CD40103 – Circuit Schematic
Infrared receiver by LM1458-CD40103
From This simple projects If you want circuits with special features,can be set the program to the circuit works, when the input pluse signal is entered of.....
GSM Remote Control 2 IN and 2 OUT DTMF – Circuit Schematic
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 A...
IR Remote Control Circuits – Circuit Schematic
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 Philli...
TV Remote Control Jammer – Circuit Schematic
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.....
Simple Remote Control Tester – Circuit Schematic
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 circu...
Simple Infrared Control Extender – Circuit Schematic
Simple Infrared Control Extender
Lots of consumer electronic equipment like TV sets, VCRs, CD and DVD players employs infrared remote control. In some cases, it is desirable to extend the.....
remote controlled fan regulator – Circuit Schematic
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.....
Remote Control Mains Switch – Circuit Schematic
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 ...
RC (Remote Control) Switch – Circuit Schematic
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.....
Radio Controlled Electronic Flash – Circuit Schematic
Radio Controlled Electronic Flash
A radio controlled electronic flash is a useful item in any photographer s kit. Professionals use them all the time. For example, a wedding photographer w.....
On-off Infrared Remote Control – Circuit Schematic
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,.....
IR Remote Control Tester – Circuit Schematic
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 connecti...
IR Remote Control Receiver – Circuit Schematic
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.....