dev-13743 will not work

Other Miscellaneous
1

I have a project with an Arduino Nano, GPS Module, SPI SSD1306 Display, and a micro-SD module. I am trying to replace the micro-SD module because it is 5V only. All parts are working properly under 5V.

I purchased your DEV-13743 because it was listed as being compatible with 3.3V systems. However if I connect it to the Nano any sketch does not recognize the sd card.

Plus if I connect the DEV-13743 the display gets corrupted after a few seconds

Attached is a diagram of the original circuit

I have the dev-13743 connected as follows:

VCC to Nano 5V

GND to Nano GND

CS to Nano 4

DI to Nano 11

SCK to Nano 13

DO to Nano 12

I can’t seem to get image files of any type to upload so here is the original circuit diagram

https://www.dropbox.com/s/gcqkqps8oaa4cvw/Test.jpg?dl=0

Any help is greatly appreciated

2

Hi, thanks for posting. We are aware of the image issues and we are working on it. My apologies for the inconvenience.

dev-13743 should be able to work with 3.3v systems, strange that is causing so many issues. If you want to file a return ticket we can look into the issue further:

https://www.sparkfun.com/support

Cheers for now. Hope we can fix the issue soon.

3

I did not order directly from sparkfun. Will file return with vendor

4

I hope I can catch you before you return your products!

Looking at your diagram, it seems you’ve tied I2C and SPI lines together. Are you able to try with them separate?