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Hi, All and @candide My test MicroSD card is rather old, 2 GB one. 1) Strange, but rSD32 lib cannot be used - ESP32 MCU is rebooted at SD.totalBytes, but previous SD.cardSize works OK: load...
link: Wow, super, thank you !...
link: issues fixed in last delivery 1.02...
link: I have tried just your example project of rSD32 on classic ESP32 (old NodeMCU CH340 Type-C module...

. Actual Arduino's SD-card class can open file only for READ, WRITE or APPEND. No TRUNCATE is possible... As Byte, YEAR As Byte End Sub Sub Start_SD(tag As Byte) If tag = 0 Then Log("Start SD...") Else Log("Try to re-start SD...") End If Dim res As Byte = RunNative("setup_sd", Null) If res = 0 Then Log("SD card - setup error..., line) End Sub #if C #include "FS.h" #include "SD.h" #include "SPI.h"...

The rSD library allows reading and writing to SD cards. The Ethernet shield as well as other shields include a SD slot. The steps required to work with files: 1. Initialize a SD object. You need to...
link: How setup? SD.Initialize(MY_SCLK, MY_MISO, MY_MOSI, MY_CS); I think, there is no need to set up...
link: How setup? SD.Initialize(MY_SCLK, MY_MISO, MY_MOSI, MY_CS);...
link: ? here is the Arduino implementation: https://github.com/greiman/SdFat Hi I suggest you post...

it is a wrapper based on SD library in esp32 package for arduino. SPI configuration is depending... defined - VSPI Not defined ' * SPI Standard case: Connect the SD card To the following pins...
link: thank you so much...
link: with a google search "arduino esp32 change spi pins" you will have your answer : standa...
link: I'd like to thank you so much for sharing this great lib. If I customized pin configs (sd...

HI, All I read that path should be 8.3 format for FAT32. But ... how to mkdir("/year/month/day...
link: Ha ! RunNative("create_dir", "/00".GetBytes) RunNative("create_dir",...
link: ", "/t00/00/000000000002".GetBytes)) No one created. createDir(SD, "/t1/t2...
link: folder=/00/0000/000000 Such path cannot be created, tested...

Hi, All Who practically used SD-cards - what max file size you could write ? Strange, but my ESP32 is starting to give error like "Failed to open file for appending" when the file is just...
link: move this part in a sub Yes, helped, thanks ! stack: 24 stack: 24 stack: 24 stack: 24 /log_0001.d...
link: Dim a() As Byte = GenerateFileLine(i) WriteString(fn, a) try to move this part in a sub......
link: Log("stack: ",StackBufferUsage) Indeed ! stack: 25948 stack: 28348 stack: 30752 /log_0...

Hi, All Just trying rSD lib with ESP32 and SPI card slot. The main, it's usage "/"...... private Sub Savelog As Boolean If sd.OpenReadWrite("/log.dat") = True Then sd...
link: Try with this Thanks, better, but anyway strange: 0000000000;Column_00 0000000001;Column_01 00000...
link: Try with this: private Sub Savelog As Boolean If sd.OpenReadWrite("/log.dat") = True...
link: , a) = False Then Log("SD card writing error") Return False End If...

Hello, I want to save data to sd card file 'log.dat' as follows: CardID,UserName,Date_Time(hh:mm:ss,yy/mm/dd) Date_Time components are public variables from timer sub, CardID and UserNameare sent from asyncstream. savelog sub called from ReadRFID stream. Thanks Sub DS1320timer_Tick... 'how can I load card number, time elements, and string into array If Sd.OpenReadWrite ("log.dat") = True Then Sd.Stream.WriteBytes(Buffer,0,Buffer.Length) End If End...

Want to hook a SD card on to my ESP8266EX What sd cards adaptors are you guys using (known to work) What is the max sd card size I can use in the adapter (have an old 16gig) I have read use fat16...
link: Good way to use SD. IT will last forever!...
link: I was trying to figure out if I had purchased the right SD Card for my device. Turns out...
link: Good to know. Thanks for the heads up Not playing on writing anything. I have a P4J program I ...

Hi everybody, I have an app updating a small random access file. It worked for months, but after I c...
link: Solved. Version of Arduino's SD library 1.2.4 has a definition for FILE_WRITE which includes...
link: #include <SPI.h> #include &lt;SD.h> const int chipSelect = 10; void setup() { // Open...
link: 't. It's a mega 2560 arduino. B4R vesion is 3.90 rSD is 1.21 SD arduino 1.2.4...