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Me No Dev
@me-no-dev
let me look
FWeinb
@FWeinb
That one is wrong.
This: http://g02.a.alicdn.com/kf/HTB1CcOWLVXXXXbAXFXXq6xXFXXXd/New-Wireless-module-CH340-NodeMcu-V3-Lua-WIFI-Internet-of-Things-development-board-ESP8266-esp-12e.jpg
Me No Dev
@me-no-dev
can not say for sure on this one... I have the Amica one and looks much different
yours seems to have no protection
so USB 5V, LDO and VIN are tied together
FWeinb
@FWeinb
But it is just strange that I don't get 5V on VIN anymore.
Me No Dev
@me-no-dev
if you have something that is introducing a low resistance between the pins, then it could cause such drop
did you actually see smoke?
FWeinb
@FWeinb
Yes saw a little bit of smoke.
Me No Dev
@me-no-dev
can you tell what gave it? it should be visible
FWeinb
@FWeinb
That is the problem I can't find anything on the board. Thats way I think it was the esp.
Me No Dev
@me-no-dev
the esp is well shielded :) i doubt it will let any smoke
any chance you take a high res picture and post it here?
FWeinb
@FWeinb
Sure, just a sec.
Me No Dev
@me-no-dev
there is one small diode on the board but I can not tell how it's connected by just looking at the image
if it's used to pass the power and too high of a current have passed through
it could have gone dead
FWeinb
@FWeinb
https://dl.dropboxusercontent.com/u/5319/broken.jpg
Martin Ayotte
@martinayotte
I don't see any diode there, at least from the picture. It could be on the bottom side. (I hope your PC USB isn't damage too)
FWeinb
@FWeinb
USB is fine.
Just stupid to not change the multimeter...
There is nothing on the bottom.
Me No Dev
@me-no-dev
@martinayotte right next to the LED (on the left)
Martin Ayotte
@martinayotte
Maybe the VReg itself ... (For example, on the Wemos, there is no diode, so it would be the RT9013 that will come into smoke)
Me No Dev
@me-no-dev
but he shorted the incomming power
not the 3.3 and GND
so the LDO should be fine
Martin Ayotte
@martinayotte
Ah ! ... so, you mean the small black near the crystal ? could be it
I've done the quite the same mistake with some STM32 MapleMini, I've purchased such diodes 50 pieces for $2
In mean time getting spare part, simple wire could be placed there, as long as you don't do same mistake, for the health of you PC USB ;-)
FWeinb
@FWeinb
Yeah. I will not be a little bit more carefull.
Michael Miller
@Makuna
@mozgy yeah, I wish we could tag a rating system on that list. I wish Arduino would add a rating system to the Library and Board Manager.
tzapu
@tzapu
or at least the github stars each package has, already there as information ..
Michael Miller
@Makuna
@FWeinb @me-no-dev Everytime I tried hot air, I ruined the module, as pieces under that shield would "slide" on the slightest movement. I wish you good luck as I didn't have it and figured it was just cheaper to replace it.
Me No Dev
@me-no-dev
@Makuna I have done it :) patience helps
decapped many modules as well without any damage to the internals
FWeinb
@FWeinb
The good thing is that these esps are as cheap as it gets so no worry. Thanks for the help!
Martin Ayotte
@martinayotte
@FWeinb , did you tried to replace temporarily the diode with a simple wire ?
Keith Andrew Hill
@vic10us
Looks like there is a little damage on the left J3Y
FWeinb
@FWeinb
@martinayotte that isn't helping. @vic10us that was just some dirt...
Mario Mikočević
@mozgy
@Makuna very good idea
Martin Ayotte
@martinayotte
@FWeinb did you check if the USB cable is still good ? (because it can have been damaged by the short)
FWeinb
@FWeinb
Did test with another cable.
marksev1
@marksev1
So pubsubclient lib anyone worked with that. I tried to mash the mqtt example with the gesture sensor example but im not sure how to do the mqtt publish thing
Stavros Korokithakis
@skorokithakis
@marksev1 i have some code
https://www.pastery.net/qadnbm/
this is platformio's 89 lib
Stavros Korokithakis
@skorokithakis
does anyone have a handy stub or some code that shows how to write a library?
i want to have a main file and then some hooks that will be called, on a separate file