Circuit diagrams of electronic hobby circuits
These are some circuits of infrared based remote controls and alarms which consists of an IR transmitter and an IR receiver which are built around IR LED and IR sensor modules and some associated components.
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| Modulated IR ray transmitter. |
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| Automatic gate opener with street lights and musical bell. |
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| IR based any remote operated bulb glowing remote control. |
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| IR based intruder alarm. |
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| IR based AC device controller. |
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| Remote control of home appliances using any TV remote. |
Electronic shooting game using infrared rays
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| Gun in which IR transmitters are placed. |
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| Target on which the receiving sensor is placed. |
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| Circuit inside the gun. |
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Circuit after the IR sensor which drives outputs.
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In this shooting game one can improve their accuracy and speed very simply.We have to point the gun towards the target and press the switch.IR rays from the gun strikes on the target IR sensor module and a confirmation LED just lits and an audio indication is also heard along with it.This circuits use only a few components which are easily available in local market.
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| Sound converted to invisible radiations |
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Modulated IR rays to sound
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