Arduino Tutorial: SD card module Micro SD tutorial DIY.

Arduino Tutorial SD card module Micro SD

Dear friends in this video we learn how to use the Micro SD module with an Arduino Uno. The SD card module is a very useful module to add storage space to any Arduino project. With this cheap module you can add huge storage space to any Arduino project. Useful for datalogging, for saving preferences, or store data for games.

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[PhilRgers]

This turned out to be a lot easier than I expected. Now I can add data logging to my Solar Water Heater controller. Thanks for showing us how to do it.

[jamesmartin]

If anyone is having the error where TEST.TXT is created, written to, and closed, but PREFS.TXT doesn't open here the explanation:

The PREFS.TXT file needs to already be on the SD card for it to be opened and read by arduino. The given code creates TEST.TXT but doesn't create PREFS.TXT. If you the same results as this video you have to create PREFS.TXT on your computer and upload it to the SD card before you run the code on arudino.

[janphillipjuntado]

Thank you for this information, kind sir! You even added a footage from Lakonia!

[icydingo]

This video helped me with my university discipline project, thank you so much

[BennyKleykens]

Thanks for the video, always very nice. One thing I don't understand : if it's a 3.3V module and 3.3V is available on Uno then why connect it to 5V? Probably does not matter but wouldn't it also work on 3.3V (if available)?

[DogRox]

I don't know why I missed this video. I'm glad I found it. :-)

[georgekot]

Thank you for putting in the time to make this very informative and easy to follow tutorial. Μπράβο !

[potatozu]

Very detailed and specific tutorial. Extremely helpful for my project. Thank you!

[northshorepx]

Thank you for another great explanation. I was a bit confused as to why you can only do one file at a time, but I suspect that the library must be using static state and hence the readLine() function. Am I misunderstanding this? Either way
thank you for taking the time to create this video for noobs like me!

[MilanKarakas]

Great and simple video. Thanks. One question: Can you read the file while writting it? I am asking because I want to store RC command data in real time - for example; if my RC robot car gives remote RC data from my transmitter, but can't keep the pace with my commands, it will be good to "listen" data from SD card, instead direct "listening" from my RC controller (data from RC transmitter will be written continously, while car will read only part of the file which can execute and keep pace with the data). Thank you in advance for answer.

EDIT: To avoid confusion, RC transmitter will send data in form of GPS coordinates, not from joysitck. Data will look like; "Go from current possition A to first point B, then go to point C...". So it may not be able to keep pace with my commands. If for some reason car does not execute commands properly, planned function "abort" will overcome data reading and commanding will be re-dirrected to direct jostick commanding.

[MaxGoddur]

Does the SD card need formatting and if so what should it be formatted in? I found a 1GB SD card in an old BlackBerry Cell Phone will that do?

[joeriverdale]

Hello my Greek friend from Canada :). Excellent yet simple video. I will be adding you to my list. Thanks MRK.

[namanhnguyen]

is there any way to use data on SD ? I save it in text data, I receive it in number? I can I conver it to text like as text i had saved

[takisable]

πολυ καλη δουλεια και συγχαριτιρια!!αναρωτιομουν αν θα μπορουσες να κανεις κανενα tutorial σχετικα με arduini-rfid κατι που θα ηταν σαν(door lock)θα με βοηθουσε πολυ!!ευχαριστω

[yxhankun]

Thanks teacher! In wemos d1, you can D5 as CS, the filename is 8.3 in length.

[Kriegerdaemon]

Thanks a lot!
Without modification source code it works on Ardino Nano V.3.0 too.

[agustd]

Thank you very useful tutorial but should've explained the functions.

[loucostello]

Great vid. I like the Beatles musak too.

[johnschmitt]

Very clear and precise video. Thank you! You saved me a lot of time.

[derick]

I have very big string array due to which my dynamic memory is filled above 100% will putting sd card module help.