[SOLVED] Blynk doesn't work with Esp8266-01

Need Help With My Project
21

if you cant even flash it - it must be the issue?

these things are 2 dollar parts, they are perhaps not all made perfect?

22

so you did connect RX and TX properly tied GPIO0 to LOW, CH_PD to HIGH and GPIO2 to HIGH?

esp8266_esp_01_module_pinout_diagram_cheat_sheet_by_adlerweb-d9iwm7a.png1024Ɨ724 188 KB

23

So true, I messed up a couple of them bigtime, lol.

Also, as @conkerkh notices, put the right pins high. I think even RST should be high when running/flashing.

24

OP appears to have had success with other ESP8266 modules so i was assuming the basic wiring was not the problemā€¦

e.g.

25

yes, i am usually RX & TX wrong, but iā€™ve never burned oneā€¦ does the smoke escape, or do they just stop working?

26

Usually they stop working. There is not much smoke in these little guys and they are pretty resillient. I used 5v logic on them a couple times, but that eventually does the trick, lmao.

I always make sure i have a couple handy. Itā€™s also handy for testing purposes (and I hand some out to colleagues and friends to get them involved :stuck_out_tongue: )

27

i found the WeMOS D1 a great investment - much easier for development, then solder up a fresh ESP module for each project :wink:

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28

What Blynk library version / baud rate are you all using with ESP hard shield?

29

With the hardshield you can go up to 115200. Blynk just latest library. I use the 0.3.3 beta (not sure if there is newer one available, but it seems to do fine!).

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30

First of all other modules have different wiring in terms of some pull up or pull downs might be missing. Secondly donā€™t be so sure you didnā€™t make mistake doing wiring even if you do it 1000 times you can make mistakeā€¦

If ESP is dead it always gets very hot quickly so itā€™s easy to identify it you burned it.

31

I installed the newest library, newest server and my esp-01 is now stably flying at 115200 :grin:

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32

@zetalif, was your problem solved?

33

Hi all,

Ok at the end Iā€™ve solved with a new esp (from a friend of mine 512k instead of 1M).
Iā€™ve used :

Generic ESP8266 Module
Serial
80MHz
40MHz
QIO
115200 bds

This confirm mine Esp has hardware problem. Iā€™ve ordered a new one. May be this time iā€™ll be more lucky.
Thank again to everyone for help!!

34

Hi zeeko where I can find new library?

35

0.3.1 is the latest stable here: https://github.com/blynkkk/blynk-library/releases