MicroSD

Other Hardware General Electronics
1

I am working on a project using the Arduino Micro Board as the base. I want to include a Micro SD card slot on my board. I would like a second opinion on the "wiring"

Thanks

MicroSD.PNG

2

You will better results with more cards and other SPI devices by:

  • adding 0.1uF to Vcc pin
  • 5V to 3.3V buffering with cd74HC4050 on CS, SCK, MOSI
  • 3.3V to 5V buffering with 1 gate of 74HC125 or similar on MISO