esp8266/Arduino

Arduino IDE for ESP8266

Douglas Pearless

@DouglasPearless

cool

Is that a complete sketch as I get "'AsyncClient' has not been declared"

Me No Dev

@me-no-dev

missing the include it seems

Douglas Pearless

@DouglasPearless

:-)

Douglas Pearless

@DouglasPearless

I added the following includes and it now compiles:

include <ESPAsyncTCPbuffer.h>

include <ESP8266WiFi.h>

include <ArduinoOTA.h>

Me No Dev

@me-no-dev

you need ESPAsyncTCP not the buffer

Douglas Pearless

@DouglasPearless

oops, that wasn't supposed to be so big, I guess the "#" is some kind of markup

Me No Dev

@me-no-dev

yeah...

read on github markup :)

Douglas Pearless

@DouglasPearless

Interesting, if I remove that include I get:
AsyncTelnetServer:28: error: 'AsyncClient' has not been declared
void onPoll(void obj, AsyncClient c){

and a lot of other erro

Me No Dev

@me-no-dev

#include <ESPAsyncTCP.h>

Douglas Pearless

@DouglasPearless

your sketch requires either:
ESPAsyncTCP.h
or
ESPAsyncTCPbuffer.h
in order to compile

Me No Dev

@me-no-dev

do not remove it... use the non-buffer one

Douglas Pearless

@DouglasPearless

Ah, ok

now using the non buffer one; going to try in a minute; compiling and uploading now :-)

Douglas Pearless

@DouglasPearless

A couple of quick questions, where does os_printf send its output, can I get it to write to Serial1 ?

or does that actually go to the UART0 which I think it does

Douglas Pearless

@DouglasPearless

I will need to sit down and better understand how this works as I seen to be getting strange data back; it seems to be chopping lines (Strings) up ie. send "X250.80 S0.1516"
expecting back an
"ok"
but Smoothie replies:
"error: unsupported command - X:124"
so it appears something is going wrong send data across the ESP to Smoothies UART :-(

Me No Dev

@me-no-dev

well check the code :) probably sending new lines somwhere

I gave you an example, not a eworking code for your need

Douglas Pearless

@DouglasPearless

I am reading the code right now, I appreciate the example, certainly something to work on :-)

Me No Dev

@me-no-dev

so this part actually sets os_printf:

void _u0_putc(char c){
  while(((U0S >> USTXC) & 0x7F) == 0x7F);
  U0F = c;
}
void setup(){
  Serial.begin(115200);
  ets_install_putc1((void *) &_u0_putc);
  system_set_os_print(1);
}

void _u1_putc(char c){
  while(((U1S >> USTXC) & 0x7F) == 0x7F);
  U1F = c;
}
void setup(){
  Serial1.begin(115200);
  ets_install_putc1((void *) &_u1_putc);
  system_set_os_print(1);
}

Douglas Pearless

@DouglasPearless

Ah Ha, Serial is on UART0 and the 1 = UART1 I assume? and there

Me No Dev

@me-no-dev

here it is for serial1

Douglas Pearless

@DouglasPearless

great, is it set at 115200 as well or that odd 74800 rate?

Me No Dev

@me-no-dev

read the code again ;) it's calling Serial.begin

Douglas Pearless

@DouglasPearless

oops, staring me in the face, clearly not enough coffee today

Clemens Kirchgatterer

@everslick

I tried the AsyncWebserver approx. a year ago, but i ran into out of heap issues back then. are the requirements on RAM still the same?

because you mentioned buffered/non buffered implementation.

Me No Dev

@me-no-dev

@everslick if you are handling 5 connections at the same time, there are resources allocated for all 5 :)

Clemens Kirchgatterer

@everslick

thats kind of to be expected. :-D

but i have no control over how many connections the browser opens to fetch different resources from the server, so it is hard to predict what happens.

Me No Dev

@me-no-dev

if you are low on RAM and can not afford to handle multiple connections, then by all means you should use the sync server and make sure you handle only one

actually you do have ;)

Clemens Kirchgatterer

@everslick

yes?

Me No Dev

@me-no-dev

it depends on your design

Clemens Kirchgatterer

@everslick

yeah

Me No Dev

@me-no-dev

I have successfuly used javascript to fetch resources one by one (even AJAX)

Clemens Kirchgatterer

@everslick

that could be an idea

Me No Dev

@me-no-dev

the days before Async :D

let me see if I can dig up the code

Clemens Kirchgatterer

@everslick

that would be very kind of you, sir.

Clemens Kirchgatterer

@everslick

http://www.javascriptkit.com/javatutors/loadjavascriptcss.shtml

like this?

Me No Dev

@me-no-dev

@everslick i sent it to you in private :D

brutzler

@brutzler

Hi,
for remote debugging I sometimes use an "debug-ESP" and transfer everything what is coming from my "main-ESP" into the serial interface via UDP broadcast.

  if (stringComplete) {
    UDP.beginPacket("192.168.1.255", 514);        // Broadcast on Port 514
    UDP.write(inputString.c_str());
    UDP.endPacket();
    inputString = "";
    stringComplete = false;
  }

A terminal program (YAT) on the PC is receiving the debug messages.
Just thinking, why this can not be done from the "main-ESP" itself...
Do you think, I can gain any problems with this way? run out of numbers of connections/sockets?

Clemens Kirchgatterer

@everslick

i use this all the time.

just try it

keep in mind, that if you send too often, the ESP will just drop some packets, without any error.

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include <ESPAsyncTCPbuffer.h>

include <ESP8266WiFi.h>

include <ArduinoOTA.h>