# Is it possible to control an SD card over SPI with the tiny2040? **URL:** \ **Category:** Electronics\ **Created:** [July 21, 2023, 7:06pm UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558 "2023-07-21T19:06:01Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![colossalchicken](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/colossalchicken/32/9958_2.png) [@colossalchicken](https://forums.pimoroni.com/u/colossalchicken)\ **Post date:** [July 21, 2023, 7:06pm UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/1 "2023-07-21T19:06:01Z")
Is it possible to control a SD card over SPI with the tiny2040? If so, what pins do I connect? ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [July 22, 2023, 7:57am UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/2 "2023-07-22T07:57:15Z")
I don’t have a definitive answer, I haven’t tried to do it. I do have a Tiny2040, but haven’t done a whole lot with it if I’m honest. I’d start with the pinout and what control signals your SD card reader / writer needs. Do you have an SD card reader writer in mind? ![tiny-2040-pinout-diagram_4dd9e9ab-6f6f-4b63-82d4-16793d109f17](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/5/58b8ad24bf36bad60d88f78d088889f3db19e184.webp) ---
**Author:** ![colossalchicken](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/colossalchicken/32/9958_2.png) [@colossalchicken](https://forums.pimoroni.com/u/colossalchicken)\ **Post date:** [July 22, 2023, 3:04pm UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/3 "2023-07-22T15:04:17Z")
I have this one [https://www.amazon.com/Micro-SDIO-Card-Breakout-Board/dp/B09K6XVS9R/](https://www.amazon.com/Micro-SDIO-Card-Breakout-Board/dp/B09K6XVS9R/) ---
**Author:** ![Shoe](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Shoe](https://forums.pimoroni.com/u/Shoe)\ **Post date:** [July 22, 2023, 7:17pm UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/4 "2023-07-22T19:17:18Z")
[Digikey have a guide for doing it with the Pico here](https://www.digikey.co.uk/en/maker/projects/raspberry-pi-pico-rp2040-sd-card-example-with-micropython-and-cc/e472c7f578734bfd96d437e68e670050). The Tiny2040 exposes a SPI bus, so as long as you map to the right pins it should work. ---
**Author:** ![Tonygo2](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/tonygo2/32/7814_2.png) [@Tonygo2](https://forums.pimoroni.com/u/Tonygo2)\ **Post date:** [July 23, 2023, 8:16am UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/5 "2023-07-23T08:16:25Z")
If you can solder you just need the micro SD card adaptor. You can find out how about 80% of the way through. Just move the SPI pins as necessary. > **[Raspberry Pi Pico - Review](https://community.element14.com/products/roadtest/rv/roadtest_reviews/964/raspberry_pi_pico)** > > Where am I coming from and what am I going to do?I’ve been writing code since 1967. I used to teach Computer Science in Community Colleges in England, with students aged 14 to adult. I’ve been retired for several years but enjoy writing code and... ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [July 23, 2023, 10:07am UTC](https://forums.pimoroni.com/t/is-it-possible-to-control-an-sd-card-over-spi-with-the-tiny2040/22558/6 "2023-07-23T10:07:58Z")
@Tonygo2 I knew somebody here had done that, and posted a picture. I was also pretty sure it was you, couldn’t find the thread though. Thanks for posting that info.