Setting up SD card on ESP32S on Tasmota 13.4.0

[Dirk Eisner]

Hi all, I have been trying to set up an SD card on my ESP32 S3 and have some basic questions.

1. Does the standard build have the SD card reader enabled or does it need to be enabled and custom compiled?

2. I'm using a 4-line SD card module, is this supported?

3. How do I know the filesystem is present? If I run the UfsType command should I see 3 & 1.

4. Is there some instruction, somewhere?

I had a look a good search but could not find anything.

Any help would be greatly appreciated.

Regards

[Justin Adie]

Hi

I recall SD cards being available by default in esp32 builds.  There are directives for using SD cards and one for the CS pin but again I think the first is available by default and the second is configurable at run time.  I don't have one to hand to test with.  SPI is supported on tasmota.  

If you're having trouble then make doubly sure that the SD card you are using is formatted properly first otherwise there are reports of tasmota not recognising it at all.  Formatting using OS functions does not seem to work.  This formatter has been reported as successful https://www.sdcard.org/downloads/formatter/

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[Philip Knowles]

A lot of the detail required is in the UFS commands on the Commands page and in the Berry scripts.

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From: 'Justin Adie' via TasmotaUsers <sonof...@googlegroups.com>
Sent: 13 April 2024 09:15
To: Dirk Eisner <dirk....@gmail.com>
Cc: TasmotaUsers <sonof...@googlegroups.com>
Subject: Re: Setting up SD card on ESP32S on Tasmota 13.4.0

 

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[Dirk Eisner]

Thanks Justin, that was the problem! I formatted the card in Linux and Windows and both failed. I used the above-mentioned formatter and it worked beautifully, first go. for anyone who needs to know. Here are some answers to my original question questions.

1. Does the standard build have the SD card reader enabled or does it need to be enabled and custom compiled?

A: No it is in the standard precompiled built for the ESP32 

2. I'm using a 4-line SD card module, is this supported?

A: Yes 4 lines is supported.

3. How do I know the filesystem is present? If I run the UfsType command should I see 3 & 1.

A: Yes when you run UfsType you should see 03:29:06.020 CMD: UfsType

03:29:06.028 MQT: stat/tasmota_791184/RESULT = {"UfsType":[1,3]}

4. Is there some instruction, somewhere?

I

[Dirk Eisner]

I have tested the SD_Cards and it works as expected, the only thing I noticed is that there is no size of the partition reported. I'm using a 16 GB card ( the smallest I had) and I assume that is the problem. In the file system interface, it is reported as 0, and from the command line the same.

23:53:44.975 CMD: UfsType
23:53:44.982 MQT: stat/tasmota_791184/RESULT = {"UfsType":[1,3]}

23:48:40.216 CMD: UfsSize
23:48:40.235 MQT: stat/tasmota_791184/RESULT = {"UfsSize":[0,4416]}

However, I can write to the card fine. I assume it is only a reporting issue. I'm only using a few MB but I need it as it is for an offline application.

Cheers

[Philip Knowles]

UFS is available in all bins with more than 1MB flash (both ESP828 and 32 varieties)

Universal File System - Tasmota

The GPIOs are here

Components - Tasmota

On the Scripting page Scripting Language - Tasmota it says

File System Support
#define USE_UFILESYS
optional for SD_CARD:
#define USE_SDCARD
#define SDCARD_CS_PIN X X = GPIO of card chip select
SD card uses standard hardware SPI GPIO: mosi,miso,sclk
depending on used linker file you get a flash file system with the same functionality but very low capacity (e.g. 2 MB)
A maximum of four files may be open at a time

Have you tried UfsFree? Ufs commands are in the Management section of the Commands page.

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From: sonof...@googlegroups.com <sonof...@googlegroups.com> on behalf of Dirk Eisner <dirk....@gmail.com>
Sent: 14 April 2024 23:55
To: TasmotaUsers <sonof...@googlegroups.com>

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[Dirk Eisner]

Thanks Justin, that was the problem! I formatted the card in Linux and Windows and both failed. I used the above-mentioned formatter and it worked beautifully, first go. for anyone who needs to know. Here are some answers to my original question questions.

1. Does the standard build have the SD card reader enabled or does it need to be enabled and custom compiled?

A: No it is in the standard precompiled built for the ESP32 

2. I'm using a 4-line SD card module, is this supported?

A: Yes 4 lines is supported.

3. How do I know the filesystem is present? If I run the UfsType command should I see 3 & 1.

A: Yes when you run UfsType you should see 03:29:06.020 CMD: UfsType

03:29:06.028 MQT: stat/tasmota_791184/RESULT = {"UfsType":[1,3]}

4. Is there some instruction, somewhere?

I

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“What I hear, I forget;

What I see, I remember; 

What I do, I understand.”