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by pratik
Tue Sep 19, 2017 2:25 pm
Forum: AT+ Commands
Topic: More softAPs at once
Replies: 5
Views: 156

Re: More softAPs at once

Are you using the latest SDK? I think there is a bug in the program or something?
I can set >10 ESPs to softAP mode in the same room.
by pratik
Tue Sep 19, 2017 2:22 pm
Forum: ESP8266 HDK
Topic: flash vendor ???
Replies: 1
Views: 20

Re: flash vendor ???

Where did you buy the WROOM-02 modules from? Can you send in a link for these two modules?
by pratik
Tue Sep 19, 2017 2:20 pm
Forum: ESP8266 SDK
Topic: 4MB Nor memory OTA reboot fail
Replies: 2
Views: 23

Re: 4MB Nor memory OTA reboot fail

There is a bug in the code it seems, maybe you are writing to an address where you should not, or something like that. The output .S file address contains the aseembly code. The error should be at address epc1=0x4010151f
by pratik
Fri Sep 15, 2017 2:38 pm
Forum: ESP8266 SDK
Topic: libcoap porting to esp8266
Replies: 1
Views: 35

Re: libcoap porting to esp8266

I'm sure you could port the library. You can have memory allocation routines using os_mem functions. BSD style sockets are also available on RTOS SDK. However, you can also get it on nonOS SDK. No, you cannot use ESP-IDF on ESP8266, the cores are not the same. The peripherals are very similar. Howev...
by pratik
Tue Sep 12, 2017 3:57 pm
Forum: ESP8266 SDK
Topic: Documented pwm_init parameters , unclear period
Replies: 2
Views: 76

Re: Documented pwm_init parameters , unclear period

That is because the period unit is micro-sec. :)
That's why if you set it to 1000, you get 1ms -> 1kHz
by pratik
Fri Sep 08, 2017 1:31 pm
Forum: ESP8266 HDK
Topic: Custom board. Can't flash.
Replies: 6
Views: 205

Re: Custom board. Can't flash.

Yes, 40MHz out should mean that there is a high likelihood that the ESP8266 is fine. Are you sure you soldered the chip correctly? Also, I cannot help without taking a look at the boot log. When you put ESP into programming mode, it will output something on UART at 74880 bauds. I will need to see th...
by pratik
Thu Sep 07, 2017 2:38 pm
Forum: AT+ Commands
Topic: How To Connect to a Public IP
Replies: 4
Views: 85

Re: How To Connect to a Public IP

Ohh, probably a firmware issue with some old version. Glad it worked!
by pratik
Wed Sep 06, 2017 10:08 pm
Forum: ESP8266 SDK
Topic: I2C Communication Fails with DS3231 RTC Module
Replies: 15
Views: 854

Re: I2C Communication Fails with DS3231 RTC Module

Put large loops in iRAM and use 80MHz QIO flash with 160 MHz core speed. That is the best you can do.
Also, you can test your LwIP skills on ESP-IDF. I'm frustrated with crashes. Proper LwIP documentation is non-existent. That could be a good personal task, making that documentation.
by pratik
Wed Sep 06, 2017 10:04 pm
Forum: AT+ Commands
Topic: Hardware flow control UART
Replies: 3
Views: 109

Re: Hardware flow control UART

You can only use RTS and CTS, but that is typically enough for most applications where you want to control data flow in case your host is slow to process data.
I'd suggest allowing the UART flow from ESP->host always when the host can process data.
by pratik
Wed Sep 06, 2017 9:59 pm
Forum: AT+ Commands
Topic: How To Connect to a Public IP
Replies: 4
Views: 85

Re: How To Connect to a Public IP

You should directly try the website name instead of the IP address. If you use IP address, then the connection will be made with a device within the subnet (local addresses by default). So instead of connecting to, for example, 192.168.1.104 @port: 80 You can try http://www.yourcloudserver.com @whic...

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