ESP8266 Community Forum

- Sun Dec 30, 2018 10:44 pm #79785 Hello friends, I have examined and applied all the issues on the Internet. But I couldn't find a solution. I bought aliexpress esp8266 works normally. When I want to use deep sleep, sleeps but does not wake up again. After waking up, 74880 baud message:

Code: Select all ets Jan  8 2013,rst cause:5, boot mode:(3,7)

ets_main.c

the code I use:

Code: Select all  Serial.println("wake up");
  delay(1000);
  Serial.println("10s sleep");
  ESP.deepSleep(10000000, WAKE_RF_DISABLED);
  delay(1000);


I used the resistance for gpio 0, I tried the resistance for gpio 16-reset. None of them worked. gpio 0 pin voltage 2.3v when the esp wakes up. this may be the reason why it does not start normally. I am not sure. I used pull up resistance for vcc and gpio 0. Direct vcc cable tied, did not recover. Power supply rc circuit, There is nothing changing. I have read all the topics on google for 1 month. I tried all of them. The last resort I'm writing to you. I want help.

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- Mon Dec 31, 2018 6:29 pm #79796 your contact to pin gpio16 is faulty

- Tue Jan 01, 2019 2:23 am #79799

your contact to pin gpio16 is faulty

If you are looking at the picture. I took it off. It actually connected to the reset pin.

- Tue Jan 08, 2019 4:09 am #79927

If you are looking at the picture. I took it off. It actually connected to the reset pin.

Although your pictures are quite sharp, it's not very clear what pins you've soldered; it looks like GPIO14, but I could be wrong.

Below are the pins that should be tied together to get deep sleep working:

ESP8266-EX-DEEPSLEEP.png

Of course you could use the RESET-pin on the header instead of the direct pin (32) on the chip.

This guy on Hackaday performed the same thing and made a little tutorial about it.

One other note: your soldering doesn't look too well, probably because you're using lead free solder with a too cold iron.
I suggest you use the good old (Sn60Pb40) leaded solder or get a hotter/temp adjustable soldering iron and some extra practice.

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Assumption is the mother of all f*ckups. At least: that's what I'm assuming.