docs: create SD_logging

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Administrator 2021-10-12 05:18:34 +00:00 committed by Josh Stewart
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---
title: SD Card logging
description:
published: true
date: 2021-10-12T05:18:25.120Z
tags: sd, logging, dropbear
editor: markdown
dateCreated: 2021-10-12T05:18:25.120Z
---
# SD Card logging
Logging of data to an SD card is currently under development and supports Teensy based systems only.
## Requirements
* Teensy based Speeduino ECU (Eg Dropbear)
* 4gb minimum SD card. 250mb must be free on this to begin a logging session
* SD card must be formatted with the ExFAT filesystem. Speeduino uses certain features of ExFAT that are not available on FAT16/32