esp8266/Arduino

Arduino IDE for ESP8266

Victor Tseng

@Palatis

it's still in ram

read from data

probonopd

@probonopd

the file is saved to spiffs

in a file with a name

and i want to override that name of the file on spiffs

Martin Ayotte

@martinayotte

Simply not use the "filename" variable and provide another filename to SPIFFS calls.

Victor Tseng

@Palatis

i guess not

i mean, the file isn't saved directly to SPIFFS.

at least not what's written in lib code.

Martin Ayotte

@martinayotte

I understand that, it is up to user's code to call the SPIFFS functions

Victor Tseng

@Palatis

i'm answering @probonopd XD

Martin Ayotte

@martinayotte

:-)

Victor Tseng

@Palatis

if you're using the default SPIFFSEditor class

it does write the file to a temp file

but if not (since you want to handle the write yourself), then it's not stored anywhere by default.

received data is in data provided by onUpload()

as i search through the lib code, the only place which calls a write() is inside SPIFFSEditor

Victor Tseng

@Palatis

and the only place where SPIFFSEditor is used is inside example/ESP_AsyncFSBrowser

I guess you copy-pasted the example without modifying it to suite your needs.

probonopd

@probonopd

I copy-pasted the example and now I want to change it so that it does what I need...

Victor Tseng

@Palatis

yup, don't use that SPIFFSEditor, write your own handler.

cuz you want to do different things.

probonopd

@probonopd

ok, thanks

bidyutper

@bidyutper

Want to store temperature sensor data when there is no Mqtt broker means if I turnoff WiFi.Thus store sensor data publish over Mqtt connection whenever it's find WiFi network.

enriquecml

@enriquecml

@bidyutper you can use SPIFF System file or use RTCMemory for save data

paraflou

@paraflou

Hi.

I am using Async client to connect to philips hue bridge in order to send asynchornously PUT json messages to hue bridge so that i can change hue status and color.

Async client connects to hue bridge and after a few seconds it disconnects (onDisconnect is triggered).

What can i do?

Me No Dev

@me-no-dev

PUT means HTTP and HTTP runs single requests: connect, send, read, disconnect. It's not a connection that is open all of the time

paraflou

@paraflou

And how can i then use async client to make put requests in loop? Calling ::connect every time i want to send request is very slow.

paraflou

@paraflou

'''

define BASE_HUE_URL "192.168.100.175"

define BASE_HUE_PORT 80

define PUT_HUE_URL "PUT /api/[hue bridge key]/lights/3/state HTTP/1.1\r\nHost: http://192.168.100.175\r\nUser-Agent: ESP8266HTTPClient\r\nContent-Type: application/json\r\nContent-Length: 11/r/n/r/n{\"on\":true}"

static AsyncClient * aClient = NULL;

void setup()
{
Serial.begin(115200);
Serial.setDebugOutput(true);

// Connect to WiFi
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println(" ----- WiFi Connected -----");
WiFi.macAddress(mac);
Serial.print("MAC: ");
Serial.print(mac[0], HEX);
Serial.print(":");
Serial.print(mac[1], HEX);
Serial.print(":");
Serial.print(mac[2], HEX);
Serial.print(":");
Serial.print(mac[3], HEX);
Serial.print(":");
Serial.print(mac[4], HEX);
Serial.print(":");
Serial.println(mac[5], HEX);

server.onRequestBody( {

if (request->url() == "/spi") {
  printf("On request body data: %s\n", data);
  DynamicJsonBuffer jsonBuffer;
  JsonObject& root = jsonBuffer.parseObject((const char*)data);
  if (root.success()) {
    if (root.containsKey("command")) {
      SPISlave.setData(root["command"].asString());


      digitalWrite(LPC_INT_PIN, 1);
    }
  }
  request->send(200, "text/plain", "end");
}

});
server.begin();

aClient = new AsyncClient();

aClient->onDisconnect( {
Serial.println("############ Async Client Disconnect ############");
c->free();
delete c;
});

aClient->onConnect( {
Serial.println("Async Client Connected");
}, NULL);

aClient->onData( {
Serial.print("\r\nData: ");
Serial.println(len);
uint8_t d = (uint8_t)data;
for (size_t i = 0; i < len; i++)
Serial.write(d[i]);
}, NULL);

if (!aClient->connect(BASE_HUE_URL, BASE_HUE_PORT)) {
Serial.println("Connect Fail\n");
AsyncClient * client = aClient;
aClient = NULL;
delete client;
}
}

void loop()
{
if ((WiFi.status() == WL_CONNECTED)) {

  aClient->write(PUT_HUE_URL);

}
'''

This message was deleted

Sorry for the mess. Above is a cut from my code. The thing i am trying to do is to send put messages to hue brigde all the time. How can i achieve this?

Shelby Merrick

@forkineye

Trying to enable debugging for IGMP within lwip and having some issues. I have os_printf working and the following defines in lwipopts.h, but not getting anything. Any idea what I'm missing?

#define LWIP_DEBUG
#define LWIP_NOASSERT
#define IGMP_DEBUG LWIP_DBG_ON

Shelby Merrick

@forkineye

ugh... well, os_printf is working from sketch, but not from within igmp.c

Shelby Merrick

@forkineye

silly me, thought Arduino compiled lwip each time. Ok, compiling it myself now. having issues tracking down where ETS_ASSERT comes from however

Stavros Korokithakis

@skorokithakis

hello!

does anyone know what this circuit is for? is it level-shifting? https://raw.githubusercontent.com/zendes/SBUS/master/SBUS_inverter.jpeg

err, that seems like the wrong photo

ah, maybe it inverts the signal so the serial gets a 1 when tx is 0

Clemens Kirchgatterer

@everslick

yes inverter

Me No Dev

@me-no-dev

@skorokithakis SBUS is protocol for RC control. Basically inverted serial at 57600. One way ;)

Stavros Korokithakis

@skorokithakis

Ah, I see, thanks @me-no-dev, @everslick

Shelby Merrick

@forkineye

Anyone have a clue where r_rand() comes from? I couldn't find a definition for it anywhere, however its called from lwip - esp8266/Arduino#3498

Clemens Kirchgatterer

@everslick

it is only called, when LWIP_IGMP is defined though. is IGMP support switched on by default?

ah i see, i didn't look at #3498 first, sorry.

Akash Ashok

@thehellmaker

Hi Guys, Is anyone aware how to write unit tests for Esp8266 arduino code? I looked through ArduinoUnit but it seems to be incompatible with esp8266.

nmenoni

@nmenoni

Hi! I have a sensor implemented with an esp8266 that needs to send data every 15 minutes. I plan to implement it by placing a "delay" of 15 minutes inside the code. Can this cause any problems? Is there a better way to do it?
Thanks!

anecdata

@anecdata

@nmenoni You could use Ticker https://github.com/esp8266/Arduino/tree/master/libraries/Ticker to set up an interrupt. Then your timing won't be dependent on variations in your code execution.

bobcroft

@bobcroft

@nmenoni Using a delay is possibly the worst way to implement periodic data sending or taking sensor readings because it blocks other code whilst the delay code is running. As mentioned you could use ticker alternatively Google 'Non blocking delays on Arduino' There are some examples and explanations of the process. you can use the millis() function for example or a Real Time Clock (RTC) to send data at specific times.

nmenoni

@nmenoni

Ok! I will investigate these methods. Thanks!

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define BASE_HUE_URL "192.168.100.175"

define BASE_HUE_PORT 80

define PUT_HUE_URL "PUT /api/[hue bridge key]/lights/3/state HTTP/1.1\r\nHost: http://192.168.100.175\r\nUser-Agent: ESP8266HTTPClient\r\nContent-Type: application/json\r\nContent-Length: 11/r/n/r/n{\"on\":true}"