AZDelivery Micro SD SPI Storage Board TF Memory Card Adapter Shield Module 3.3V 5V compatible with Arduino Including E-Book! (Pack of 5)

I use these with Arduino Unos and bespoke boards with 5V out as these have their own linear regulators for 3.3V. So don’t buy them if you have an ESP32! Or you’ll need to solder bridge the regulator output or something. No issues with these before, good quality - I recommend

Bought this as a test, and it works straight out of the pack. I use it to log temp, pressure light intensity etc. Library easy to understand and use. Really good buy

I spent an hour or so trying to get these working with an ESP32 module (3.3volt supply only), only to find that despite the description for the item which clearly says it supports 5v AND 3.3v inputs, the data sheet that AZ delivery email (very helpfully) clearly states the VCC should be 4.5 to 5.5. They work fine on my Arduino connected to 5v supply but they don’t work on the Arduino when connected to the 3.3v supply! See attached photos. However I note that there is an onboard regulator that changes the voltage to 3.3v so I’m not sure why it doesn’t work? 3 stars because they are good modules just not what I wanted/expected!Update... There are numerous references to this problem on the reviews from other countries along with a fix which involves shorting out the onboard voltage regulator (two pins closest to the pin connectors), which works just fine.

Well made, work fine. Only downside is that like a lot of the 5v/3.3v adapters for SD cards it won't share a single SPI bus with another device politely.

Used in an array of projects and does what it should

Works perfectly. Part of a robotics project with grandson. No problems at all and very nice follow up email from supplier to check all was ok.

Excellent quality, works as expected. Using it with an ESP32 to read MP3 files.

Despite being advertised as 5v/3.3v compatible, this board does not work with 3.3v. It also needs frequent power cycling each time you load a new sketch to your board. This process seems to break the SPI interface and can only be made to work again by power cycling the card reader. Don't buy it if you're using any modern 3.3v GPIO boards.