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September 5, 2014 - 11:04am, 2215 views
I would like to configure the GPIO1 and GPIO2 as inputs and GPIO3 and GPIO4 as outputs.Is it possible to directly joined together through cable connections (GPIO1 with GPIO3 pins and GPIO2 with GPIO4)?
as I assume you wish to connect it directly, change states on output and read the changes on input. This surely can be done, nothing indicates against it.
Thank you very much for your reply.
I have just tested with AT Commands .As you said actually there is no electrical problems but there are inconsistencies in the input.I think it is necessary to use pullup and pulldown resistors.Any suggestion?
what do you mean by "inconsistencies"? The state doesn't change? Is it stuck low or high?
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