Just one question to RAM. Free RAM I can see with
But, why doesnt the value shrink after a definition of a big array...
ESP.getFreeHeap() or?But, why doesnt the value shrink after a definition of a big array...
Serial << "free RAM: " << ESP.getFreeHeap()<< endl;
int value[10000];
Serial << "free RAM: " << ESP.getFreeHeap()<< endl;
Both times the same value printed.....
@chakrihacker what's the error?
@tzapu why does wifimanager not set the flag for saving the config internally? it would be much easier if we could do, after the autoconnect, if (wifiManager.configChanged()) { do stuff }
@brutzler The array is not used further agrees. Compiler optimizations performed and not reserve memory
hmm, i'm trying to store some data in the EEPROM with this code, but saving and then reading it back produces "magic number invalid":
struct Persistent {
char version[4] = CONFIG_VERSION;
char stopName[31] = "";
} persistent;
void loadState() {
if (EEPROM.read(0) != CONFIG_VERSION[0] ||
EEPROM.read(1) != CONFIG_VERSION[1] ||
EEPROM.read(2) != CONFIG_VERSION[2]) {
Serial.println("Magic number invalid, return.");
return;
}
for (unsigned int t=0; t<sizeof(persistent); t++)
*((char*)&persistent + t) = EEPROM.read(t);
Serial.println("Loaded state.");
}
void saveState() {
for (unsigned int t=0; t<sizeof(persistent); t++)
EEPROM.write(t, *((char*)&persistent + t));
EEPROM.commit();
Serial.println("Saved state.");
}
@xbary
but when I write to the array, the value doesnt change too
but when I write to the array, the value doesnt change too
Serial << "free RAM: " << ESP.getFreeHeap()<< endl;
int advalue[500];
for (int i = 0; i < 500; i +=1) {
advalue [i] = analogRead(A0);
}
Serial << "free RAM: " << ESP.getFreeHeap()<< endl;
hmm. my fault. was not so good to define the array local. causes me several reboots on reading out of the array later in the function.
@brutzler depends on where the variable is.
@brutzler
ESP.getFreeHeap() returns the heap only
int foo[1000] = { 0 }; // static allocated (.bss section)
void func() {
static int bar[1000] = { 0 }; // static allocated (.bss section)
int baz[1000] = { 0 }; // stack (g_cont)
int *foobar = new int[1000]; // heap (ESP.getFreeHeap())
}malloc() realloc() are allocated on heap, too.
the maximum stack you can use is defined by CONT_STACKSIZE, default to 4kb.
and your stack is statically allocated...
@skorokithakis love you too man :)
for eeprom example see here https://github.com/tzapu/SonoffBoilerplate/blob/master/SonoffBoilerplate.ino
it doesn t save flag internally, but you are right, it probably should
also, for params, you can send complete custom html when you set a param and make it look/act however you want to
i ve been out of touch for a while now, is development on the arduino core for the sdk pretty much stopped nowadays ?
@Palatis if fragmentation is a problem, you could just restart after a successful config (and use an on demand version), then on next boot, wifimanager never gets allocated.
but, this lib is really intended to get you running quickly, simply, but any project as complicated as yours is most likely better off with a custom implementation anyway
i left the WebServer on because there're other applications for it
also, just read about updates to the projects, looking forward to merges and sdk 2.0, thanks everyone
@Palatis yeah, makes more sense to have a your own version then, since you already have a webserver running
it can still work with wifimanager, especially with a restart, but i don t see what gain you could get really
hi i need help
now i use arduino ide 1.6.10 on 32bit xp
now set all parameter on ide and download esp8266
i use esp8266 d1&mini but not compile
error is #include <bits/c++config.h>
Arduino: 1.6.13 (Windows XP), Board: "WeMos D1 R2 & mini, 80 MHz, 921600, 4M (3M SPIFFS)"
Build options changed, rebuilding all
In file included from C:\Documents and Settings\ijadi\Desktop\New Folder (4)\arduino-1.6.13\portable\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/ESP8266WiFiGeneric.h:27:0,
from C:\Documents and Settings\ijadi\Desktop\New Folder (4)\arduino-1.6.13\portable\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/ESP8266WiFiSTA.h:28,
from C:\Documents and Settings\ijadi\Desktop\New Folder (4)\arduino-1.6.13\portable\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/ESP8266WiFi.h:34,
from C:\Documents and Settings\ijadi\Desktop\New Folder (4)\arduino-1.6.13\portable\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\examples\WiFiWebServer\WiFiWebServer.ino:10:c:\documents and settings\ijadi\desktop\new folder (4)\arduino-1.6.13\portable\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\functional:48:28: fatal error: bits/c++config.h: No such file or directory
include <bits/c++config.h>
^compilation terminated.
exit status 1
Error compiling for board WeMos D1 R2 & mini.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
plz help me
Then activate this option. ( more information during compilation....)
hi guys , my module contently disconnected ad try to reconnect again , does anyone can decipher following debug repot
bcn_timout,ap_probe_send_start
ap_probe_send over, rest wifi status to disassoc
state: 5 -> 0 (1)
rm 0
pm close 7
WS [2] Disconnected!
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
cnt
state: 5 -> 2 (fc0)
rm 0
reconnect
state: 2 -> 0 (0)
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
cnt
connected with keyno, channel 1
dhcp client start...
ip:192.168.1.150,mask:255.255.255.0,gw:192.168.1.1
pm open,type:2 0