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💬 Detecting Mains Voltage Module

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https://www.openhardware.io/view/8274/Detecting-Mains-Voltage-Module
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General Discussion • sensor newbie advice • • shawn_ky

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@daulagari There are some on AliExpress. A bit cheaper than Antratek but not much. Not 100% sure you get the Uno shield adapter but it seems so. Still no big deal with the price since we only need one gateway.
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That's right @gohan , if you place the "door closed"reed near the floor then only first interrupt should matter, first interrupt should tell you the door is closed. Same for a second reed placed high - the "door open" reed, that would tell you the door is open when interrupted the first time. @McQueen, could be close to you needs ...
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@scalz Maybe this: https://en.wikipedia.org/wiki/Net_radiometer I'm not sure if it's overkill, but it does look like it would do the job.
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Hi.... hehe... I must decode it from source code?? hmmmm... interesting... where I need to write my question? power down mode .. every 1 sec wake up .. using timer2 32kHy crystal 2.make sensor with more sensor type in one device .. for example .. temperature , energy meter, bin input state.. etc..
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@Serg2055 as the name says, openhardware.io is for open hardware. You are allowed to sell PCB units, partially or fully soldered boards, but selling source is not an acceptable option. Please include readable schematic and source of your boards or at least gerbers or bom. For all your boards posted on openhardware.io. Thank you !
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@IronFelix I would not combine so many inputs and outputs in one sketch. But I think if there is enough memory for variables ; then it is possible to go for sensing (step by step) for a combination of sensors. Similarly for buttons, actuators, use a separate hardware.

💬 Detecting Mains Voltage Module

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💬 Detecting Mains Voltage Module

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