ESP8266 Community Forum

Posted: **Sat Aug 20, 2016 6:05 am**

Hello Everyone

I am working on a new project that will provide me a mobile www server with an ESP8266-07 and SD card.
Here as a link to the topic with an SD card project:
http://www.esp8266.com/viewtopic.php?f=32&t=3558

I have already managed to set up my own website on the SD card, but I'm having hard time with that AP mode... I don’t want to use a standard rougher as an AP. The idea is that an ESP8266-07 will provide its own WI-FI so I can connect to it from any device and browse the web from the SD card. Is there anyone who can help me with that project?

Many thx
Jakub

Posted: **Wed Aug 24, 2016 11:41 am**

Hello again

Ok, I have spent last two nights trying to solve my own problem

and I think I managed to do so.
I have ESP-07+SD running AP Mode with captive protocol. So now i can set up my own web server on the go.

Is there anyone interested in that, pls let me know so I will try to describe my setup and the Arduino Code

Posted: **Sat Sep 10, 2016 6:43 pm**

Hi, JaPa, I'm trying to run a sd card in my esp8266-07, but I'm not having success.

Settings in IDE

Module: Generic ESP8266 Module
Flash Size: 512K (64K SPIFFS)
CPU Frequency: 80Mhz
Flash Mode: DIO
Flash Frequency: 40Mhz
Upload Using: SERIAL
Reset Method: ck

Sketch

#include <SPI.h>
#include <SD.h>

Sd2Card card;
SdVolume volume;
SdFile root;
const int chipSelect = 16;

void setup() {
if (!card.init (SPI_HALF_SPEED, chipSelect)) {
Serial.print ("Initialization failed.\n");
} else {
Serial.print ("Initialization ok.\n");
}
}

void loop() {
//
}

Connecting

GPIO-13 - SD / MOSI
GPIO-12 - SD / MISO
GPIO-14 - SD / SCLK
GPIO-16 - SD / CS

Arduino IDE 1.6.8
esp8266 library v2.3.0

you are connecting this way?
my sketch is correct?

Posted: **Sun Sep 11, 2016 3:27 am**

Hi, this worked for me on the ESP8266-12. I later used GPIO15 (with a pulldown resistor) as CS to free up a GPIO.

Code: Select all

/*
  SD card file dump

 This example shows how to read a file from the SD card using the
 SD library and send it over the serial port.

 The circuit:
 * SD card attached to SPI bus as follows:
 ** MOSI - pin 11
 ** MISO - pin 12
 ** CLK - pin 13
 ** CS - pin 5 // changed from original sketch.

 created  22 December 2010
 by Limor Fried
 modified 9 Apr 2012
 by Tom Igoe

 This example code is in the public domain.

 */

#include <SPI.h>
#include <SD.h>

const int chipSelect = 5;
File dataFile;
  
void setup()
{
  // Open serial communications and wait for port to open:
  Serial.begin(115200);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }


  Serial.print("Initializing SD card...");

  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");
}
void loop() {
//
}

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