Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [sd-card]

SD cards are often used with the Arduino Ethernet Shield. They stand for "secure digital cards" and fit into one's palm. They range from 256MB to 128GB, although most Arduinos only use 4GB. There are also SD micro cards, a smaller version of the cards.

-1
votes
1answer
32 views

Attempting to read random string from SD card

I was wondering if anyone knew how to read in a random string from a file named "PhraseList.csv" or "PhraseList.xlsx" (whatever is easier)? There is a list of 10k. #include <SD.h> #include <...
0
votes
0answers
22 views

SD card module not responding [duplicate]

I am trying to read an SD card info by Arduino and an SD card module. But the SD card is not responding. I connected the wires carefully several times but it is not working. I am using this module : ...
1
vote
2answers
130 views

Arduino NANO hardware SPI not working

I have an Arduino NANO clone and a 2.4" ILI9341 TFT display. The VCC and LCD pins of the display are connected to the 5V pin of the board. The GND to the GND. All the logic pins are connected to ...
0
votes
1answer
43 views

Want to display an image from SD card to ILI9486 LCD display

I am completely new to Arduino. I have been given a side project to display a image from SD card to display. LCD used is ILI9486 which has a SD card slot at the back of the display module. I have ...
0
votes
1answer
19 views

Trying to save .wav files with new name every loop

I have built a set up with an Arduino UNO hooked up to a switch, so that whenever the switch goes from HIGH to LOW it saves audio to an SD card. I am using the TMRpcm Library. The problem is the ...
0
votes
0answers
48 views

Using an OV7670, Arduino Uno, ESP8266 and SD card

I am planning to create a project which will take a picture with OV7670 and Arduino Uno with SD card and send it to server with ESP8266. is it possible to use Arduino Uno(it has only 2k RAM memory)?
-1
votes
0answers
28 views

Why tcs3200 color sensor , sd card reader and speaker aren't working at the same time?

I'm trying to create a project which is going to useful for some blind people who needs to choose colors and i have TCS3200 color sensor , sd card reader and a speaker. I can see the colors name on ...
0
votes
1answer
37 views

SD card initialization failed

i use the example sketch of SD card presented in Arduino IDE. It runs well, but when i reboot my Adruino Mega by the reset button, the SD card initialization fails. To fix it, i need to remove the SD ...
0
votes
1answer
106 views

SD Card Read/Write Arduino Mega Fail

I have an Arduino Mega 2560 where I have used a MicroSD Card Module to Read/Write Data on the Micro SD Card. I have tried using the Example in the Arduino IDE but the data is not being written or read ...
-1
votes
1answer
29 views

Data not writing to SD Card on a Feather M0

I'm trying to write a sketch that will pull data from a BME280 and ADXL345 using the I2C protocol and then write that data to an SD card. Using different sketches I've found online I got something ...
0
votes
1answer
55 views

Conflict between SD card shield and accelerometer

I'm trying to get the SD card (Adafruit microshield SD card) and an MPU6050 accelerometer to work at the same time. When I connect the SD card to the Arduino (without the accelerometer), it's ok; When ...
-1
votes
0answers
31 views

How to save to SD card from Barcode reader?

I have been working on this for weeks. I bought an arduino yun and put a usb shield on it. Separately the sd and barcode scanner works but together they did not on the arduino uno. I fixed that ...
1
vote
2answers
78 views

SD card failed to initialize [closed]

I have a Pro Micro board and I try to make it list my files as in the example of the Arduino IDE. The pins I use are the following: board micro sd module D4 ---> CS D15 ---> SCK ...
0
votes
1answer
54 views

How to connect NRF24 receiver and Micro SD Card Module to Arduino UNO

I would like to know how to connect a NRF24 receiver and Micro SD card module to Arduino board. I have already connected the NRF24 module to the arduino board but now i can't connect the Micro SD card ...
0
votes
1answer
57 views

cannot show free space of SD card with arduino nano

I'm using a nano v3, the SD module and a 64GB microSD card. Writing to the card works fine. But I can't print out the free space left on the card. I'm using this code: /* SD card read/write ...
0
votes
3answers
39 views

Iteed SD card breakout info for Arduino

I got an SD card breakout from an online shop, its the iteed kind without the level shifter, it has the 3.3 / 5 V switch. I cannot find any libraries or write example for it. Has anyone dealt with it ...
0
votes
1answer
76 views

Garbage stored in SD card

I am an electronics graduate and an embedded design engineer, working in this field for about two years apart from the hobby time during my graduation. I am currently working on a system that has an ...
0
votes
1answer
22 views

listing sd card files on a tft screen

I'm currently working on a Arduino project that plays audio files from SD card through a speaker. First Arduino sends the list of all music files, and when I send it a file name, the music is played. ...
0
votes
2answers
103 views

How does one **get** attributes for SD files?

To be able to set the date and time of the files on my SD card I followed this answer: https://arduino.stackexchange.com/a/39127/49678 Now I am wondering How do I read the values out in the ...
0
votes
2answers
135 views

How to set CS pin on Beetle BLE/Bluno Beetle to Adafruit SD Card Breakout - Initialization Failed!

Hi I have a Beetle BLE (https://www.dfrobot.com/wiki/index.php/Bluno_Beetle_SKU:DFR0339) and I am trying to connect an Adafruit MicroSD card breakout board+ (https://www.adafruit.com/product/254) via ...
-1
votes
1answer
96 views

“undefined reference to SD” with SdFat library [closed]

is there any way to rename a file in sd card without using SdFat? Thank you im getting error when inclung the #include <SPI.h> //#include <SD.h> #include <SdFat.h> ...
0
votes
2answers
126 views

Use 5V SD-Adapter on 3.3V System

I want to use a Catalex Micro SD Card Adapter in Combination with my Arduino MKR GSM 1400. The problem is, that the Arduino uses 3.3V to operate but the SD Adapter needs 5V (or at least 4.5V) to ...
0
votes
1answer
207 views

Using Arduino wireless SD Shield to save data to sd card and send to PC over wireless network

new here. I'm using an Arduino Mega to monitor the current & voltage input to four different sensors. This works fine - the sensors work as expected and I can view the results via the Serial ...
0
votes
0answers
33 views

How to switch power modes in the Arduino SD Library?

I am using the Arduino SD library and I was having an inconsistent response with some SD card modules: some of the SD cards failed to initialize (with SD.begin()) despite having the same hardware (...
0
votes
2answers
119 views

Reading names of files on sd card returning odd file names

When trying to read the file names from an sd card some are being returned with a ~1 and cutting off the full file name. Initializing SD card...initialization done. TEST.TXT 402 UNTITL~1 ...
0
votes
4answers
154 views

Arduino SD card cannot write (writes crap files and then I get error)

I am developing a very simple project to measure some temperatures and store them in an SD card. I have a problem trying to write. No matter what I do the SD card always ends up with content like this:...
0
votes
1answer
122 views

Reading text from sd card is returning weird characters?

I have an ebook which is converted to a .txt file saved on an sd card which is connected to the arduino. I'm trying to display the words from the book on a 16x2 lcd display on word at a time. It works ...
-1
votes
2answers
36 views

Second SD not writing

simple problem I can't see the reason behind, the sd card writes the first file fine, but the second doesn't write at all. Can any one see why? #include <SPI.h> #include <SD.h> ...
0
votes
1answer
24 views

Can I use GSM and Data Logger Shield at the same time on one Arduino?

Me and my classmates are trying to make an arduino base project where we will be using sensors, GSM, and Data logger shield. We want the arduino to store the data collected and at the same time send a ...
0
votes
1answer
142 views

Use SD-Card module in combination with MKR GSM 1400

I have bought a SD Module with the following Pin-Names: VCC,GND,MOSO,MOSI,CS,SCK. I've found many tutorials on how to use it with the Arduino Uno. But haven't found any on how to wire it with the MKR ...
0
votes
0answers
19 views

db.open() not working

I'm trying to use a database on an SD card, using the Extended Database Library. I've managed to create a database (which shows up as a file on my SD card), but my program doesn't get past the line ...
0
votes
1answer
17 views

Serial string readout analyzed and logged onto an SD card [closed]

I have a sensor that gives me this string, serially read @9600: @T;+019.8;H;043.6;51 This burst arrives automatically about every second. It means: "@" start of the string "T;" means the ...
0
votes
1answer
60 views

Arduino writes file to SD but not content to file

I'm using an Arduino UNO, the Extended Database Library (EDB), and an microSD Card to read/write 2 database tables. I've managed to create both ".db" files on the SD (they show up in Finder when I ...
0
votes
1answer
504 views

Reading bytes from a file on SD Card - Understanding Buffer

I have the following piece of code which opens a Bitmap from the SD card and outputs the width to the serial monitor. #include <SPI.h> #include <SD.h> File bitmap; void setup() { ...
0
votes
1answer
51 views

FIle not being found on sd card

I have some quite long code to copy a file from an SD to the same card, but under a different name. I have one version where the file names are built-in to the sketch, but to make it more portable, i ...
0
votes
1answer
565 views

NodeMCU V3 + SD Card with Arduino IDE Not working

I am trying to connect CATALEX MicroSD Card adaptor to new NodeMCU V3 and PIN configuration are as below, NodeMCU ---------> SD Card GPIO13 (D7) ------> MOSI GPIO12 (D6) ------> MISO GPIO14 ...
0
votes
1answer
61 views

Arduino UNO And SD Card Custom csPin

I've connected SD card module to Arduino UNO. I want to use PIN 10 for PWM DC motor control and because of that, I've connected CS pin directly to another pin (A3). SD card is working properly, but ...
0
votes
1answer
208 views

Arduino SD count files and open last, How to?

I am trying to count files. I have one hidden file from Windows10 so i am doing "-1" but I want to open the last file and can't work out how, any help? Please, Thanks #include <SD.h> int ...
-3
votes
1answer
138 views

How we can Create the folder into SD card and gives the path for file to save the data into the folder

I am trying to store files inside a series of folders, depending on month and year. I am using a RTC, and the standard SD library. I have previously gotten the program to set the file name to the ...
0
votes
1answer
31 views

Cannot access SD card on WINC1500

I have a WINC1500 shield and have the Wi-Fi side working fine. I want to do some datalogging to the SD card and am having trouble getting it running. I have bought a 16 GB Sandisk card and inserted it....
0
votes
2answers
141 views

Data is not being written into SD card

I want to save the file as date and time and I want to open the file mySensorData = SD.open(filename, FILE_WRITE); in the set up. It shows "insert SD card" when I try to open the file in setup. The ...
0
votes
1answer
337 views

`.readFileCounts()` not working on DFPlayer mini module

I just played around using a MP3-TF-16P module, aka DFPlayer mini. The library and the examples I used as a basis can be found here. My current setup contains a button (NC, normally closed), which is ...
0
votes
0answers
615 views

Arduino ESP8266 Webserver SD

I connect Micro SD card adapter to my esp8266. I uploaded the SD webserver example sketch into the esp8266, everything works perfectly once I created index.htm, now I add LED to digital pin 4, now, ...
-1
votes
1answer
137 views

Unable to save the Date and Time as the filename [closed]

I want to save the filename as current date and time
0
votes
0answers
31 views

Save my data into different tables

I use this library EDB master I want to save my data into 3 different tables what's the best way to do this? #include "Arduino.h" #include <EDB.h> // Use the external SPI SD card as storage #...
0
votes
1answer
122 views

Error using SD card module: no matching function for call to

This code is just a test code to write a file to an SD card using an SD card module. When I run the code, I get this error message and I'm not sure what to do to fix the code: no matching function for ...
1
vote
1answer
46 views

SdFat initialization blocks HC-SR04

I appreciate the help of this forum very much and it`s my first time to ask you experts befor driving crazy... ArduinoUno and SDcard-BreakOutboard and DistanceSensor HC-SR04 are not working well ...
2
votes
2answers
179 views

Two SD card interfaces on one ESP8266?

I know it's possible to hook up multiple SPI devices, but how can one access the second drive from a sketch? Looking at the SDWebServer.ino example, my doubt is with the SD.begin(SS); part. If I ...
0
votes
1answer
1k views

Saving a .txt file to SD Card and Reading each content data to txt file then save it to a variable

I am new to arduino I am trying to create an arduino project that Saving a .txt file to SD Card and Reading the txt file then save it to a variable data type "Long" named 'savednum'. I had ...
1
vote
2answers
179 views

Writing “theremin” outputs to a MIDI file on an SD card

I am making a musical instrument (theremin simulator). I want there to be a "record" capability which stores the volume and note the user is playing, into a MIDI file. Note this doesn't actually ...