ESP8266 Community Forum

- Mon May 08, 2017 5:54 pm #65726 thanks Rudy and Reaper,
I've tried all the different board settings, i'm back to
Generic ESP8266 Module, 80Mhz, 40Mhz, DIO, 512k (64K PSIFFS), ck, Disabled, None
but none make any difference (unless I choose a setting way out of spec).
Whilst the tutorial i'm using
http://www.instructables.com/file/FCH0MSCI697OYRQ/
doesn't have any external resistors i notice some others are using 5-10k resisotrs to perform pull ups,
should i be using them?
A picture of my setup is here:

IMG_20170509_085203.jpg

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- Mon May 08, 2017 6:44 pm #65728 This is the minimum you should use. I like to put a pull up on GPIO2 but the connection to the led internally should accomplish what is needed. I do not recommend shorting IO lines to ground or VCC unless you know that there are no conditions that will turn their outputs on. You should have a pullup on the reset line. Also the RX and TX lines from a USB-serial converter must be 3.3V maximum and not 5V.

- Mon May 08, 2017 6:48 pm #65729 thnaks Rudy!
i'll go add those in now and hopefully i havn't blown the module!

- Mon May 08, 2017 9:22 pm #65736 no change.
i've kinda had enough now. I cant face resoldering another module just to have it error again.
the really frustrating is i bought 5 of these esp-12e and the first one worked out of the box, it's currently controlling car park entry with blynk which is a huge library. has been for weeks.
it doesn't even have a cap on the vcc let alone the resistors.