répondre a des questions sur ESP8266 & Arduino ??
Merci

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Am 19.06.22 um 15:25 schrieb zeneca:

répondre a des questions sur ESP8266 & Arduino ??
Merci

Don't believe one will do in French :(
___
Regards
JJenssen

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Le 20/06/22 à 11:41, JJenssen a écrit :

Am 19.06.22 um 15:25 schrieb zeneca:

répondre a des questions sur ESP8266 & Arduino ??
Merci

Don't believe one will do in French :(
___
Regards
JJenssen

OK, let's try
I would like to find a way allowing several siteId in a configuration.
The system (a NodeMcu8266) would try them in sequence.
For that I am trying:

struct netw
{
char *MXWifi;/*ssid*/
char *YYYZY; /*passwd*/
const char *MyIp; /*ip adress*/
struct netw *next;
};

struct netw prem = {"AAACCCCCC","xvdfgghs","192,168,1,32"};
struct netw seco = {"Orange-aaa","7XyZzR","192,168,0,32"};

struct netw *current;

In setup()

IPAddress local_IP(MYIpad);
IPAddress gateway(MYGatew);

DoConnect();


in
void Doconnect() {

while(1) {
Serial.println(current->MXWifi);
Serial.println(current->YYYZY);
Serial.println(current->MyIp);

// IPAddress local_IP(current->MyIp);
Serial.println("-------------------");

if (current->next != &prem) {
current = current->next;
} else {
current = &prem;
break;
}


}

Compilation fail on current->MyIP
Doesn't' accept 198,162... nor 198.162...
Type IPAdress seem to only accept:

#define MYIpad 192,168,0,32

Typically Arduino??

Many thanks in advances
André

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In article (Dans l'article) <t8pfbu$rp3$1@dont-email.me>, JJenssen <joemajen@arcor.de> wrote (écrivait) :

Am 19.06.22 um 15:25 schrieb zeneca:

répondre a des questions sur ESP8266 & Arduino ??
Merci

Don't believe one will do in French :(

French speaking people can use <news:fr.comp.sys.raspberry-pi>

--
Jean-Pierre Kuypers

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A. Dumas <alexandre@dumas.fr.invalid> wrote:

On 20-06-2022 12:28, zeneca wrote:

struct netw
{
     char *MXWifi;/*ssid*/
     char *YYYZY; /*passwd*/
     const char *MyIp; /*ip adress*/
     struct netw *next;
};

struct netw prem = {"AAACCCCCC","xvdfgghs","192,168,1,32"};
struct netw seco = {"Orange-aaa","7XyZzR","192,168,0,32"};
[...]
Compilation fail on current->MyIP
Doesn't' accept 198,162... nor 198.162...
Type IPAdress seem to only accept:

#define MYIpad 192,168,0,32

I have never seen anything using commas in IP addresses instead of
periods. It is not an arithmatic number, so those are not decimal
points, so I can't imagine anyone, ever, anywhere needing to translate periods to commas or vice versa in IP addresses. If your library does do that, I'd be looking for a different library.

It is actually how they do it: https://www.arduino.cc/reference/en/libraries/ethernet/ipaddress/
however it's a constructor which accepts four arguments, being the four 8
bit chunks of the IPv4 address: https://github.com/esp8266/Arduino/blob/master/cores/esp8266/IPAddress.h#L70 https://github.com/esp8266/Arduino/blob/master/cores/esp8266/IPAddress.cpp#L38

Hence you can do:
IPAddress alice(127,0,0,1);

which creates an instance of the IPAddress class pre-initialised with
the four octets from 127.0.0.1

But, looking at that code, I think you need fromString() to parse the string
in a "127.0.0.1" format, ie:

IPAddress local_ip();
local_ip.fromString(prem.MyIp); // sets local_ip to address in MyIp

- which is more time consuming and error prone than the constructor which
just accepts (127,0,0,1) as arguments.

Theo

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On 20-06-2022 12:28, zeneca wrote:

struct netw
{
     char *MXWifi;/*ssid*/
     char *YYYZY; /*passwd*/
     const char *MyIp; /*ip adress*/
     struct netw *next;
};

struct netw prem = {"AAACCCCCC","xvdfgghs","192,168,1,32"};
struct netw seco = {"Orange-aaa","7XyZzR","192,168,0,32"};
[...]
Compilation fail on current->MyIP
Doesn't' accept 198,162... nor 198.162...
Type IPAdress seem to only accept:

#define MYIpad 192,168,0,32

I have never seen anything using commas in IP addresses instead of
periods. It is not an arithmatic number, so those are not decimal
points, so I can't imagine anyone, ever, anywhere needing to translate
periods to commas or vice versa in IP addresses. If your library does do
that, I'd be looking for a different library.

--- SoupGate-Win32 v1.05
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On 20-06-2022 14:11, Theo wrote:

It is actually how they do it: https://www.arduino.cc/reference/en/libraries/ethernet/ipaddress/
however it's a constructor which accepts four arguments, being the four 8
bit chunks of the IPv4 address: https://github.com/esp8266/Arduino/blob/master/cores/esp8266/IPAddress.h#L70 https://github.com/esp8266/Arduino/blob/master/cores/esp8266/IPAddress.cpp#L38

Hence you can do:
IPAddress alice(127,0,0,1);

Oh, ha. Yeah that can be useful and I guess OP misunderstood that it
wasn't one string.

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Le 19/06/22 à 15:25, zeneca a écrit :

I misspelled my question:

I would like to find a way allowing several siteId in a configuration.
The system (a NodeMcu8266) would try them in sequence.
For that I am trying:

struct netw
{
char *MXWifi;/*ssid*/
char *YYYZY; /*passwd*/
const char *MyIp; /*ip adress*/
struct netw *next;
};

struct netw prem = {"AAACCCCCC","xvdfgghs","192,168,1,32"};
struct netw seco = {"Orange-aaa","7XyZzR","192,168,0,32"};

struct netw *current;

In setup()

DoConnect();


in
void Doconnect() {

while(1) {

const char* ssid = current->MXWifi;
const char* password = current->YYYZY;

IPAddress local_IP(current->MyIp);

Serial.println(current->MXWifi);
Serial.println(current->YYYZY);
Serial.println(current->MyIp);
Serial.println("-------------------");

if (current->next != &prem) {
current = current->next;
} else {
current = &prem;
break;
}


}

Compilation fail on current->MyIP
Doesn't' accept 198,162... nor 198.162...
Type IPAdress seem to only accept:

#define MYIpad 192,168,0,32

Typically Arduino??

Many thanks in advances
André

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Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr> napis'o:

répondre a des questions sur ESP8266 & Arduino ??
Merci

As this is for PI which uses Linux, you should look at: https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-examples.html
And look at WiFiMulti.

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Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr> napis'o:

répondre a des questions sur ESP8266 & Arduino ??_IP(
Merci

As this is for PI which uses Linux, you should look at: https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-examples.html
And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip
address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is
#define 192,168,0,111 in another file.
Regards

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Le 21/06/22 à 15:45, Martin Gregorie a écrit :

On Tue, 21 Jun 2022 14:40:22 +0200, zeneca wrote:

Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr>
napis'o:

répondre a des questions sur ESP8266 & Arduino ??_IP(
Merci

As this is for PI which uses Linux, you should look at:
https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-

examples.html

And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip
address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is #define 192,168,0,111 in another file.I think
Regards

Run a local DNS (named, kea or knot) - I'm running named.
Set it up to be authoritative for your local LAN and to pass all other requests to the global root DNS servers.

I think I will start a HOTSPOT on a Raspberry (maybe a Zero ) with
dnsmask (dns and DHCP ) it also une local host table, and so be rid of
the problem. But I need to use an extra system for this wich is...
The Raspberry should have a second ethernet access (cable or a second
wlan? looking for a Raspberry zero 2wh )

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On Tue, 21 Jun 2022 14:40:22 +0200, zeneca wrote:

Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr>
napis'o:

répondre a des questions sur ESP8266 & Arduino ??_IP(
Merci

As this is for PI which uses Linux, you should look at:
https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station- examples.html
And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip
address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is #define 192,168,0,111 in another file.
Regards

Run a local DNS (named, kea or knot) - I'm running named.
Set it up to be authoritative for your local LAN and to pass all other
requests to the global root DNS servers.


--

Martin | martin at
Gregorie | gregorie dot org

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Am 20.06.2022 um 14:31 schrieb zeneca:

struct netw
{
     char *MXWifi;/*ssid*/
     char *YYYZY; /*passwd*/
     const char *MyIp; /*ip adress*/
     struct netw *next;
};

There is the problem -> const char *MyIp; /*ip adress*/

In Arduino IPAddress class is defined (in IPAddress.h) as:

IPAddress();
IPAddress(uint8_t first_octet,
uint8_t second_octet,
uint8_t third_octet,
uint8_t fourth_octet);
IPAddress(uint32_t address);
IPAddress(const uint8_t *address);


So the line

#define MYIpad 192,168,0,32

defines only a place holder 'MYIpad' and this satisfies the second
definition above: IPAddress(MYIpad) -> IPAddress(192, 168, 0, 32)

You have to give the class initialiser 4 octets

Or you make a unsigned integer of 32 bits from the 4 octets, to store in
your struct...

Hope this helps
Philippe

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On Tue, 21 Jun 2022 16:08:40 +0200
zeneca <pasIci@ailleur.fr> wrote:

I think I will start a HOTSPOT on a Raspberry (maybe a Zero ) with
dnsmask (dns and DHCP ) it also une local host table, and so be rid of
the problem. But I need to use an extra system for this wich is...
The Raspberry should have a second ethernet access

How much bandwidth do you need ? Do you have a managed switch ? If
the answers are favourable then you could run two VLANs out of the Pi and
use the managed switch to present them to separate ports without the
tagging. I did this years ago using an original Pi as a router.

--
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/

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Le 19/06/2022 zeneca <pasIci@ailleur.fr> écrivait :

répondre a des questions sur ESP8266 & Arduino ??
Merci

raspberry != Arduino

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Dana Tue, 21 Jun 2022 14:40:22 +0200, zeneca <pasIci@ailleur.fr> napis'o:

Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr> napis'o: >>> répondre a des questions sur ESP8266 & Arduino ??_IP(

Merci

As this is for PI which uses Linux, you should look at:
https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-examples.html
And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip

Your home AP handles DHCP requests. Your ESP will get local IP.
Than your AP will send all your outgoing requests from its own address.
In case you need to access your ESP from the net you will have to
do port forwarding from your AP. That way you will be able to access your
ESP from the net.

If you need to know your AP's dynamic IP address you can use some kind
of external service... I have something like this for sending my IP: https://mudrac.ffzg.hr/~nlazic/ip.php?whatever_text&1
and for getting my IP I use: https://mudrac.ffzg.hr/~nlazic/ip.php?whatever_text

You just have to send the first line from your ESP.
Use the second line to get IP from yout AP to contact your ESP through
port forwarding service on your AP.

address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is
#define 192,168,0,111 in another file.

You will be given local IP from your home Access point.
Then sort out how to manage port forwarding on your AP.

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Dana Tue, 21 Jun 2022 16:08:40 +0200, zeneca <pasIci@ailleur.fr> napis'o:

Le 21/06/22 à 15:45, Martin Gregorie a écrit :

On Tue, 21 Jun 2022 14:40:22 +0200, zeneca wrote:

Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

Dana Sun, 19 Jun 2022 15:25:52 +0200, zeneca <pasIci@ailleur.fr>
napis'o:

répondre a des questions sur ESP8266 & Arduino ??_IP(
Merci

As this is for PI which uses Linux, you should look at:
https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-

examples.html

And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip
address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is #define 192,168,0,111 in another file.I think
Regards

Run a local DNS (named, kea or knot) - I'm running named.
Set it up to be authoritative for your local LAN and to pass all other
requests to the global root DNS servers.

I think I will start a HOTSPOT on a Raspberry (maybe a Zero ) with

That way you will again get the same functionality as with your AP
connected to the internet (probably some kind of NAT... or CGNAT).

dnsmask (dns and DHCP ) it also une local host table, and so be rid of
the problem. But I need to use an extra system for this wich is...
The Raspberry should have a second ethernet access (cable or a second
wlan? looking for a Raspberry zero 2wh )

Zero has USB connection through four testpoints on the board. You can use
those to connect to some USB HUB and connect anything you need.
But you have to provide enough power to the USB HUB.

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Martin Gregorie <martin@mydomain.invalid> wrote:

On Tue, 21 Jun 2022 14:40:22 +0200, zeneca wrote:

Le 21/06/22 à 13:52, Nikolaj Lazic a écrit :

As this is for PI which uses Linux, you should look at:
https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station- examples.html
And look at WiFiMulti.

Interesting, I will have a try.
But the problem I a facing is my local provider doesnt give fixed ip address. So I have to give IPAdresse local_IP(MyIpAd);
MyIpAd is #define 192,168,0,111 in another file.
Regards

Run a local DNS (named, kea or knot) - I'm running named.
Set it up to be authoritative for your local LAN and to pass all other requests to the global root DNS servers.

The OP has an ESP8266 running the Arduino platform. That isn't a Raspberry
Pi, isn't running Linux, they don't need to run extra servers on a Raspberry
Pi to simply set an IPv4 address in their ESP8266, which is something that every machine in the last two decades needs to do.

OP, if you use wifiMulti, it already does DHCP for you. From that link
above, see the log:

connected with sensor-net-1, channel 1
dhcp client start...
ip:192.168.1.10,mask:255.255.255.0,gw:192.168.1.9

According to the source: https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/examples/WiFiMulti/WiFiMulti.ino
the IP is printed via:

Serial.println(WiFi.localIP());

So presumably that gives you the local IP, should you need it for further
use.

Theo

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