Stemedu2PCS Micro SD Card Module TF Card Memory Storage Adapter Reader Board SPI Interface with Integrated Circuit Breakout for Arduino for Raspberry Pi

Good product with solid soldering on the headers and good functionality

We only used one, but it worked perfectly, with considerable "exercise".

I bought this to use with my Arduino Uno so I could read the CID info from some microSD cards. I had a regular SD card breakout board (ASIN B0089SYU9C) that I used just fine, all I did was swap the pins with this board, but it wouldn't even initialize. Here's my code:#include <SPI.h>#include <SD.h>Sd2Card uSdCard;cid_t cid;const int uSdChipSelect = 10;void setup() {Serial.begin(9600);if (!uSdCard.init(SPI_FULL_SPEED, uSdChipSelect)) {Serial.print("ERROR init. uSD reader");exit(1);}delay(100);uSdCard.readCID(&cid);if (cid.always1 != 1) {Serial.print("ERROR CID data was miread");exit(1);}uint8_t* pCid = (uint8_t*) & cid;for (int i = 0; i < sizeof(cid); i++) {Serial.print(pCid[i], HEX);}}void loop() {// Empty}

Both boards were very clean, and quality made. I wired both up to an Arduino Uno and used the SD library from Arduino. Worked great! In the Arduino UI, click File->Examples->SD->CardInfo and run the sketch. I tested with a 16 GB MicroSD card.The MicroSD locks in place with the standard spring mechanism.I am not sure I like how the header is positioned, but this is personal preference. In this manner it does not take up much space and the card slot is on top making it easy to insert. The only issue is that is does not stand up straight and can be a bit unstable.This is a great, simple to use board!

These Stemedu 2PCS Mic ro SD Card Module are perfect for DIY electronics projects. I'm using these for a couple of home automation projects that I put together. I have one running on my raspberry pi to log data as a secondary drive. These are easy to get connected and working as well. If you're a DIY projects person. I would highly recommend these micro SD card modules.

Pretty easy to set up and use. Mostly. The fruitful web search was "arduino spi interface microSD". From there, it's pretty cookbook. Follow the recipe and suddenly there's a nice bit of removable storage to play with.I've had no problems with these units so far after about 7 hours of messing around during 4 play sessions on four different days. The build quality is "kids toy", not automotive or aerospace.

There are half a dozen versions of this breakout board floating around Amazon, all identical except for the label. The good news is that they're basically working: you can talk SPI to an SD-Card.Pros: Comes with pins attached that fit into a standard ribbon plug or breadboard.This needs 5V power even though all the signals are 3V3.This is a chunky board with almost nothing on it (reader frame, power converter, quad buffer chip, that's it). It's almost the size of a Raspberry Pico board. It's sturdy, I'll give it that.The reader is flush against the board edge and is spring loaded with a very tight spring. You want to hold the board, or screw it down firmly, when inserting the card. You may also have trouble accessing the slot if you mount it inside a case.This is a fair board if you have (or want) 5V power, are averse to soldering pins, and are happy with 1-lane SPI. If you're handy with a soldering iron, need a smaller footprint, have only 3V3, or want better features (SDIO), there are much better alternatives out there (for example, the Adafruit spi/spio breakout board, which Digikey sells for $2.50).

Broke in the first few days of use, board was dirty before use, do not buy unless you just want a minute or so of connection

With the Arduino's SD library its super easy to use and connect. The description is really good at showing the wiring diagram, the limitations in terms of SD card size and example code.