Use arduino and adafruit grand central sd card

Please tell us which board you are using.
For CircuitPython issues, ask in the Adafruit CircuitPython forum.

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
kim521739
 
Posts: 3
Joined: Mon Apr 24, 2023 12:38 am

Use arduino and adafruit grand central sd card

Post by kim521739 »

Can I use arduino uno to write something on adafruit grand central's built in sd card module?

User avatar
adafruit_support_bill
 
Posts: 88037
Joined: Sat Feb 07, 2009 10:11 am

Re: Use arduino and adafruit grand central sd card

Post by adafruit_support_bill »

In theory, yes. But it is risky and would involve some coding to coordinate access between the two boards.

You would need to make sure that all of the SPI pins on the Grand Central were set to high- impedance mode when the Uno was accessing the card. And you would need to do the same on the Uno when the Grand Central was accessing the card. Otherwise you would likely damage one or both processor boards.

Locked
Please be positive and constructive with your questions and comments.

Return to “Metro, Metro Express, and Grand Central Boards”