Showing posts with label remote. Show all posts
Showing posts with label remote. Show all posts
Friday, August 29, 2014
TV Remote Control Jammer
This schema 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 TV detecting a channel-change or any other command. This allows you to watch your own program without anyone changing the channel !! The schema is adjusted to produce a 38kHz signal. The IR diode is called an Infra-red transmitting Diode or IR emitter diode to distinguish it from a receiving diode, called an IR receiver or IR receiving diode. (A Photo diode is a receiving diode).
There are so many IR emitters that we cannot put a generic number on the schema to represent the type of diode. Some types include: CY85G, LD271, CQY37N (45¢), INF3850, INF3880, INF3940 (30¢). The current through the IR LED is limited to 100mA by the inclusion of the two 1N4148 diodes, as these form a constant-current arrangement when combined with the transistor and 5R6 resistor.
TV Remote Control Jammer
This is really fantastic schema.Because you can fun with this schema.If others operate your TV set or setup you can use this to control them.and you can use this to annoy someone.so enjoy with this....
Parts:
Q1 2N4403 PNP Transistor
Q2 2N4401 NPN Transistor
C1 10nF Ceramic Disc Capacitor
C2 1uF Electrolytic Capacitor
D1, D2, D3 High Output IR LED
R1 100K 1/4W Resistor
R2 150K 1/4W Resistor
R3 10K 1/4W Resistor
R4 1K 1/4W Resistor
S1 Normally Open Momentary Push Botton
B1 4.5V Battery (Three "AA"s In Series)
MISC Wire, Case, Board
Note
# You may need to adjust the value of R5 for the right frequency.
#supply 4.5v
Friday, June 6, 2014
Simple MiniCom An Arduino LCD DSLR Remote Control
It’s my first post in English on this blog, just to get to the broader English crowd of the maker world. I’ll present my latest project, the fifth iteration in my quest to create a remote control for my DSLR.
There’s a night-mode, where all the LCD turns red, useful for astro-photography, when you need to be able to look at it without compromising your acquired night vision. The interface is limited to a single rotary knob you can push to validate your choices. It remains easy and intuitive to use even when it’s minus 20°C and it’s pitch black. The output is a standard 3.5mm stereo jack, you can use different cables to control different brand of DSLRs. [Link]
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