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)
USB is fine.
Just stupid to not change the multimeter...
There is nothing on the bottom.
Me No Dev
@martinayotte right next to the LED (on the left)
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
but he shorted the incomming power
not the 3.3 and GND
so the LDO should be fine
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 ;-)
Yeah. I will not be a little bit more carefull.
@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.
or at least the github stars each package has, already there as information ..
@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
@Makuna I have done it :) patience helps
decapped many modules as well without any damage to the internals
The good thing is that these esps are as cheap as it gets so no worry. Thanks for the help!
@FWeinb , did you tried to replace temporarily the diode with a simple wire ?
Keith Andrew Hill
Looks like there is a little damage on the left J3Y
@martinayotte that isn't helping. @vic10us that was just some dirt...
@Makuna very good idea
@FWeinb did you check if the USB cable is still good ? (because it can have been damaged by the short)
Did test with another cable.
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
Nah if it's 5v already should be good to power the nodemcu board
There's an onboard lm1117 to bring it down to 3.3V for the esp
Can you tell me how difficult what I'm trying to accomplish is? I want to hook up 10 of these to 1 servo each and a LiOn solar battery. I need to the ESP's to subscribe to an MQTT topic and rotate the servos so they can open/close my blinds. I don't mean pull the blinds up, just rotate the wheel that opens/closes the slats of the blinds.
On a scale of 1 - 10 what am I getting myself into