Search found 34 matches

by beg_dk
Thu Sep 14, 2017 5:51 am
Forum: Report Bugs
Topic: esp-idf-template-master sample program not working
Replies: 18
Views: 25755

Re: esp-idf-template-master sample program not working

Try soldering a large low ESR (low series resistance) capacitor e.g. 220uF tantalum 6.3V directly across the ESP32 3V3 and GND pins as close to the ESP32 as possible. This will act as a storage tank for current spikes so the voltage will not drop enough to cause a brownout, even when the regulator ...
by beg_dk
Thu Aug 03, 2017 10:54 am
Forum: General Discussion
Topic: [solved] how feed watchdog CPU_0
Replies: 5
Views: 27386

Re: [solved] how feed watchdog CPU_0

Hi

Can anyone tell me what the purpose of feeding the watchdog is?

Thanks
by beg_dk
Wed Aug 02, 2017 6:02 am
Forum: General Discussion
Topic: Pulse Counting and sleeping
Replies: 20
Views: 36340

Re: Pulse Counting and sleeping

I have created an example which illustrates deep sleep'ing and counting low pulses on GPIO0: https://gist.github.com/igrr/54f7fbe0513ac14e1aea3fd7fbecfeab Comments are welcome. If there is positive feedback we will add this example to the ESP-IDF. Each time you press "Boot" button (which brings GPI...
by beg_dk
Tue Aug 01, 2017 6:03 pm
Forum: General Discussion
Topic: Deep sleep wake-up triggered by low to high logic level of GPIO
Replies: 6
Views: 11125

Re: Deep sleep wake-up triggered by low to high logic level of GPIO

guillermop wrote:Yes, I'm not sure if that is the solution, maybe I'm misunderstanding something, but I'm keeping searching information
Hi there, just curious to know if you have come up with a solution of some sort? I have not had much time myself looking into this but will soon...
by beg_dk
Thu Jul 06, 2017 6:22 am
Forum: General Discussion
Topic: Deep sleep wake-up triggered by low to high logic level of GPIO
Replies: 6
Views: 11125

Re: Deep sleep wake-up triggered by low to high logic level of GPIO

Hi, I'm here for same reason. I know that it is possible to solver this behavior by hardware, like in the esp8266 with something like a monostable flip flop but as @beg_dk I would like to know if there is a firmware/software solution for that. I've found an answer that might help, I'll post the sol...
by beg_dk
Thu Jul 06, 2017 6:13 am
Forum: General Discussion
Topic: Wifi in STA mode resets
Replies: 9
Views: 13589

SOLVED: Wifi in STA mode resets

Hi My apologies, it turned out to be the voltage supply that caused the trouble or at least something that made the voltage supplying the ESP32 too low to operate. I did not have any reason to suspect the voltage supply because I have used this setup many times without problems. Thanks for your help...
by beg_dk
Wed Jul 05, 2017 6:24 am
Forum: General Discussion
Topic: Wifi in STA mode resets
Replies: 9
Views: 13589

Re: Wifi in STA mode resets

Hi I am using ESP32D0WDQ6 (revision 0). Are there any issues with that particular revision? Also I have tried to pinpoint where the problem is but inserting log statements as you suggested Kolban. This are my findings so far. As part of the wifi initialisation the event_handler is created, just the ...
by beg_dk
Tue Jul 04, 2017 6:10 am
Forum: General Discussion
Topic: Wifi in STA mode resets
Replies: 9
Views: 13589

Re: Wifi in STA mode resets

Do you have any recommendations as to the thickness / length of wires - any capacitors that must be provided - is the mentioned voltage regulator step down module not suitable?

Thanks
by beg_dk
Mon Jul 03, 2017 5:33 am
Forum: General Discussion
Topic: Wifi in STA mode resets
Replies: 9
Views: 13589

Re: Wifi in STA mode resets

In that case, I'll ask the old standby question: is the power supply to your ESP32 powerful enough and connected over thick enough wires? If it's not, it tends to give problems with WiFi startup. I am using this http://www.ebay.co.uk/itm/AMS1117-3-3V-3V3-800mA-Voltage-Regulator-Step-Down-Module-for...
by beg_dk
Sun Jul 02, 2017 8:48 pm
Forum: General Discussion
Topic: Wifi in STA mode resets
Replies: 9
Views: 13589

Re: Wifi in STA mode resets

That backtrace doesn't match the error message at all and is actually bullshit: no way printf calls into an ethernet arp function. Are you sure you are feeding gdb the exact same file as you have flashed? You are right, it does seem strange - I might be doing something wrong that I am not able to s...