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DBoulanger

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  • Keep in mind that if someone comes in your room with pretty much ANY remote control, he/she will be able to turn on/off the lamp at their will. Imagine your "remote control switch" being in the living room. Every time someone will adjust the volume or change channel, your light will go on/off. Not too convenient, don't you think ? For those people who think that you can aim at an IR receiver with a couple of cm of precision, think again. IR signals can bounce off the walls, ceilings, furnitures and reach the target, making the overall thing pretty much useless unless a better approach is used,

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  • The overall idea is really clever. However, having to run wires around the door frames isn't too appealing, at least for me.As suggested by someone else, by installing PIRs at appropriate locations, close by an electrical outlet, and adjusting the sensitivity and delays, you would have something fairly functional too.Obviously, you would lose the potential flexibility of the microcontroller, but on the other hand, what is needed is only some lightning for specific needs, nothing exhaustive.As per my past experiences, the SR501 PIR sensors aren't reacting exclusively to movement. In the past, I had one installed just above a door on the back of my garage, which was triggering when the dogs were entering or leaving the garage. During the summer, the door was left open and only the warm a…

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    The overall idea is really clever. However, having to run wires around the door frames isn't too appealing, at least for me.As suggested by someone else, by installing PIRs at appropriate locations, close by an electrical outlet, and adjusting the sensitivity and delays, you would have something fairly functional too.Obviously, you would lose the potential flexibility of the microcontroller, but on the other hand, what is needed is only some lightning for specific needs, nothing exhaustive.As per my past experiences, the SR501 PIR sensors aren't reacting exclusively to movement. In the past, I had one installed just above a door on the back of my garage, which was triggering when the dogs were entering or leaving the garage. During the summer, the door was left open and only the warm air flow was sufficient to trigger the PIR. In fact, any meaningful temperature variation was sufficient to get the PIR in action, so cold to warm or warm to cold, would trigger it. Finding the appropriate setting to accommodate the needs, might become somehow time consuming, but it's fun when everything is working.Movement detection and light detection always lead to interesting little projects.Don't come back home too late, just in case someone swap the lights for an alarm and you'll end up having an hearth attack ! ;-)

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