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Type: Posts; User: hitman47

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  1. Thread: 555 timer

    by hitman47
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    4,734

    they ar connected in series.

    they ar connected in series.
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    LDR (CdS Photocell) prices

    Prices of these LDRs(smallest to largest size available) in Mumbai?

    http://www.sunrom.com/bmz_cache/9/9651e29c99504d09e019d6cb6283a58d.image.76x112.jpg
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    Door entry detection(with direction) URGENT

    I want to check whether a person goes outside or inside a room and count them. So I need to use some kind of laserbeam/IRbeam/Lightbeam sensor and place them across the door frame. Please tell me how...
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    Nokia 3310/3315/3350 LCDs

    Nokia LCDs in Mumbai? What price?
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    2
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    1,276

    Transformer for this project?

    I want to transmit audio over laser beam. But can I get an Audio Transformer(8:1000ohm) in Mumbai.

    http://www.wikihow.com/Transmit-Audio-With-a-Laser-Pen...
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    Where to find diffused White/Blue LEDs

    Does anyone know from where to get diffused White/Blue/Orange leds? Normally these leds have clear(transparent) body, I want a diffused one.
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    2
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    1,516

    CNC/Lathe metal workshop in Mumbai?

    I need to make small metal railway wheels(no plastic/rubber) for my project(About 1cm in dia). Does anyone know where can I get them made in Mumbai?

    Has anyone used custom made wheels(even...
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    1,168

    Lead Free Solder

    Where can I get Lead Free Solder Wire in Mumbai??
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    2,161

    Cheapest 12V DPDT Relay (8 Pins) in Mumbai?

    Whats the price of a 12v DPDT Relay in Mumbai? I am going to use them for switching appliances, so should be able to handle 2Amp or more at 250VAC.
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    Thanks for the reply. I will try the method...

    Thanks for the reply.

    I will try the method soon. But the Triac/Scr used dimmers always produce hum in motors. They also cause RF fields which are detected in nearby Radios etc and eventually...
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    3,694

    Ceiling Fan speed control circuit

    I want to automate some of my appliances and fixtures in my house and control them by a remote. I know the principle used for remote controlling of these(using relays etc). But how can i control...
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    Want Audio Transformer

    I want audio output transformer which has standard 8ohm:1000ohm windings. The size of the transformer is small almost half inch.
  13. Need Ideas for home automation project! (Auto switch off)

    I am thinking of controlling my home appliances(fans)/lightings using a remote/computer/microcontroller. My main objective is power saving. Like as soon as someone leaves a room the lights & fans...
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    PIR(Passive InfraRed) sensors in Mumbai

    Where can I get these PIR modules for motion detecting in room so that I can turn off lights automatically when a person leaves it.

    http://img512.imageshack.us/img512/7082/pirmoduletq7.th.jpg
    ...
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