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Added failure mode to watch for

Matt D 2019-08-26 10:41:02 +00:00
parent aca4d701f8
commit 6101762cc0
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Hyleton-313-Smart-Plug.md

@ -65,6 +65,15 @@ Shorting pin *7* (GPIO0) to ground while plugging the serial adapter into the co
Screw the PCB back to the housing, and place the PCB back into the other half of the socket. Apply a small 1mm bead of super glue around the edges and firmly clip the two halves back together again, and hold firmly for about 30 seconds to allow the glue to cure.
> ### Dangerous Failure Mode To Avoid
> When reassembling the plug, be extremely careful to ensure that the resistor next to the PCB screw is not leaning towards the earth (top) pin! It is very easy to slightly bend it towards the earth pin when unscrewing. If the resistor is too close to the earth pin when a plug is inserted it can get caught by the earth pin, bent over, short-out, then explode.
>
> <img src="https://i.imgur.com/EljDTYH.jpg" alt="Do not let the resistor short-out on the earth pin" width="400"/>
>
> <img src="https://i.imgur.com/KjzsoFu.jpg" alt="Do not let the resistor short-out on the earth pin" width="400"/>
>
> This will kill the socket, and maybe you too. Take extreme caution - mains electricity is dangerous.
If you've done everything right you should have a fairly clean looking plug still with just a small amount of cosmetic scratches on the bottom side of the unit where you used the pry tool.
## Configuration