Connectin Problem of Arduino BT

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hi everyone, need help~~ :p :p
i used arduino bt connect laptop , did work until yesterday.....><..... :smiley-sad-blue:

i connected 1 pin set output high voltage supply accident, , noticed batteries became hot , smelt burning....so turned off batteries immediately.

after such disaster, whenever tried connect arduino bt laptop, have press reset button , connection can insist 5 second. when use serial monitor, connection fail after receiving first data! =( =( =(

is there way make sure arduino bt broken or not?

thank soooo much! ^_^

quote
is there way make sure arduino bt broken

i think found one...


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