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2At a glance, your picture shows that you've connected RX to RX and TX to TX. They need to be swapped, so that each module receives what the other transmits.Rennex– Rennex2015-11-08 06:55:25 +00:00Commented Nov 8, 2015 at 6:55
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To expand on that, I'm not sure if the logic lines of the ESP can handle 5V of the arduino. (5V exceeds the 3.3V, that could cause some problems)aaa– aaa2015-11-08 16:48:01 +00:00Commented Nov 8, 2015 at 16:48
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@FuaZe are you suggesting separate 3.3v power ?Yonkee– Yonkee2015-11-08 17:41:35 +00:00Commented Nov 8, 2015 at 17:41
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@Rennex Thanks for that. I will test it out tonight.Yonkee– Yonkee2015-11-08 19:30:09 +00:00Commented Nov 8, 2015 at 19:30
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@Yonkee I'm suggesting a TTL logic converter or a resistor-divider on the logic lines. As the logic (Rx/Tx) may not be 5V tolerant.aaa– aaa2015-11-09 14:36:06 +00:00Commented Nov 9, 2015 at 14:36
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