Search found 9 matches

by leenowell
Sun Jan 13, 2019 3:25 am
Forum: ESP8266 SDK
Topic: Espressif need statement on mesh support please
Replies: 1
Views: 326

Espressif need statement on mesh support please

Hi I have been trying to get an ESP mesh network up and running on ESP8266 as defined in the mesh user guide. From what I can see, it was in version 2.4.0 (i.e. mesh.a and mesh.h are included) but when it gets to 2.4.2 the header file exists but nothing else. In version 3.0 I can't see anything to d...
by leenowell
Fri Jan 11, 2019 4:51 am
Forum: ESP8266 SDK
Topic: Implementing a mesh network
Replies: 0
Views: 306

Implementing a mesh network

Hi all, I am looking to implement a mesh network using ESP8266's. Looking at the following spec, this looks exactly what I need. https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/mesh.html The main criteria is that they don't need to connect to a wifi router (besides the root node) an...
by leenowell
Wed Mar 02, 2016 7:27 pm
Forum: ESP8266 SDK
Topic: Announce: Free book on the ESP8266
Replies: 12
Views: 14244

Re: Announce: Free book on the ESP8266

Hi wwg, I was wondering if you got to the bottom of how this stuff works? I too am trying to get it working but no joy :( I have one of these http://www.aliexpress.com/item/1pcs-FT232RL-FTDI-USB-3-3V-5-5V-to-TTL-Serial-Adapter-Module-forArduino-Mini-Port/32256920717.html and am using it fine to flas...
by leenowell
Wed Mar 02, 2016 4:31 pm
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

Re: ADC strange issue

@Jimmy thanks very much for your reply. This is not something I am familiar with so will buy one anyway and do some research whilst I await it's arrival :) @ESP_Alfred thanks very much for running the tests. I will rerun mine tonight with the volt meter disconnected and see what I get. I have also d...
by leenowell
Mon Feb 29, 2016 4:22 pm
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

Re: ADC strange issue

Thanks, I will try them tonight. I saw a couple of posts talking about a heap corruption issue (mainly relating to String) so wonder if this is related? In terms of the test, do you want me to flash these files and then upload my code? @Jimmy - I was able to run your test last night as it was limpin...
by leenowell
Mon Feb 29, 2016 3:50 am
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

Re: ADC strange issue

Sorry.... I forgot to mention the errors. When in the continual reboot cycle without executing any code I was mainly getting "exception (0)" but sometimes "exception (9)". After trying my "fix" on restart, I get the following output in the serial monitor (at 74880 baud)...
by leenowell
Mon Feb 29, 2016 3:30 am
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

Re: ADC strange issue

Hi All, There is definitely something very strange going on. As you could see from the output I attached earlier, it keep randomly crashing with an exception. Following this test, I tried to do some further analysis by moving to remove the ardunio libs and only use the SDK. The board became complete...
by leenowell
Sat Feb 27, 2016 4:14 pm
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

Re: ADC strange issue

Hi As promised please find attached a tar with code, output and version number which exhibits the behaviour. There is a README.txt file which details the cut down test as well as version number (which I believe is 1.3.0_15_08_10p1). @Jimmy - thanks very much for your reply. A couple of thoughts 1. i...
by leenowell
Thu Feb 25, 2016 1:06 am
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 6471

ADC strange issue

Hi All, Firstly sorry if this appears as a duplicate. I posted it earlier but it seems to have disappeared.... I have an ESP12F which I am looking to use as a thermometer. The wiring is essentially +3.35v ------ 400k resistor ------ (A)------ 100k thermistor ------- GND With point (A) connected to t...

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