- Sun Jun 14, 2015 6:00 am
#20419
Yeahhhh it's WORKING.
I can read and write files from my sd card!
How to:
Connect:
Sd-->ESP8266 201
1 CS --> IO2
2 DI(MOSI)-->IO13
3 VSS1--> GND
4 VDD-->3.3v
5 SCLK-->IO14
6 Vss2-->GND
7 DO(MISO)-->IO12
Use this schematic:
https://upload.wikimedia.org/wikipedia/ ... -Names.gif
(Found on Wikipedia)
and
(Banggood product photo: http://img.banggood.com/thumb/large/201 ... 5147-6.jpg /
http://www.banggood.com/Wholesale-Warehouse-ESP8266-ESP-201-Remote-Serial-Port-WIFI-Transceiver-Wireless-Module-wp-Usa-964288.html
Then upload the SD Cardinfo Example included by the IDE:
BE sure to change the CS pin because the ESP8266 standard CS pin is IO15 which always has to be connected to ground!(in this case change it to 2)
If all is right, you should get this message on the serial Monitor:
I've used a 2gb card.
Now I'm trying to upload the SDWebserver Sketch
Stay tuned
I can read and write files from my sd card!
How to:
Connect:
Sd-->ESP8266 201
1 CS --> IO2
2 DI(MOSI)-->IO13
3 VSS1--> GND
4 VDD-->3.3v
5 SCLK-->IO14
6 Vss2-->GND
7 DO(MISO)-->IO12
Use this schematic:
https://upload.wikimedia.org/wikipedia/ ... -Names.gif
(Found on Wikipedia)
and
(Banggood product photo: http://img.banggood.com/thumb/large/201 ... 5147-6.jpg /
http://www.banggood.com/Wholesale-Warehouse-ESP8266-ESP-201-Remote-Serial-Port-WIFI-Transceiver-Wireless-Module-wp-Usa-964288.html
Then upload the SD Cardinfo Example included by the IDE:
Code: Select all
/*
SD card test
This example shows how use the utility libraries on which the'
SD library is based in order to get info about your SD card.
Very useful for testing a card when you're not sure whether its working or not.
The circuit:
* SD card attached to SPI bus as follows:
** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
** CS - depends on your SD card shield or module.
Pin 4 used here for consistency with other Arduino examples
created 28 Mar 2011
by Limor Fried
modified 9 Apr 2012
by Tom Igoe
*/
// include the SD library:
#include <SPI.h>
#include <SD.h>
// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;
// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
const int chipSelect = 2;
void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
Serial.print("\nInitializing SD card...");
// we'll use the initialization code from the utility libraries
// since we're just testing if the card is working!
if (!card.init(SPI_HALF_SPEED, chipSelect)) {
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card inserted?");
Serial.println("* is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
return;
} else {
Serial.println("Wiring is correct and a card is present.");
}
// print the type of card
Serial.print("\nCard type: ");
switch (card.type()) {
case SD_CARD_TYPE_SD1:
Serial.println("SD1");
break;
case SD_CARD_TYPE_SD2:
Serial.println("SD2");
break;
case SD_CARD_TYPE_SDHC:
Serial.println("SDHC");
break;
default:
Serial.println("Unknown");
}
// Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
if (!volume.init(card)) {
Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
return;
}
// print the type and size of the first FAT-type volume
uint32_t volumesize;
Serial.print("\nVolume type is FAT");
Serial.println(volume.fatType(), DEC);
Serial.println();
volumesize = volume.blocksPerCluster(); // clusters are collections of blocks
volumesize *= volume.clusterCount(); // we'll have a lot of clusters
volumesize *= 512; // SD card blocks are always 512 bytes
Serial.print("Volume size (bytes): ");
Serial.println(volumesize);
Serial.print("Volume size (Kbytes): ");
volumesize /= 1024;
Serial.println(volumesize);
Serial.print("Volume size (Mbytes): ");
volumesize /= 1024;
Serial.println(volumesize);
Serial.println("\nFiles found on the card (name, date and size in bytes): ");
root.openRoot(volume);
// list all files in the card with date and size
root.ls(LS_R | LS_DATE | LS_SIZE);
}
void loop(void) {
}BE sure to change the CS pin because the ESP8266 standard CS pin is IO15 which always has to be connected to ground!(in this case change it to 2)
If all is right, you should get this message on the serial Monitor:
Code: Select all
Initializing SD card...Wiring is correct and a card is present.
Card type: SD2
Volume type is FAT32
Volume size (bytes): 1998790656
Volume size (Kbytes): 1951944
Volume size (Mbytes): 1906
Files found on the card (name, date and size in bytes):I've used a 2gb card.
Now I'm trying to upload the SDWebserver Sketch
Stay tuned
Last edited by sigrokBlack on Sat May 30, 2020 5:15 pm, edited 1 time in total.
