littlefs performance. About 10 to 100x slower than FatFS on very large files because of the way the file blocks are strung together. littleFS, a BSD licensed open source filesystem by ARM, designed for small devices. The littlefs needs a read cache, a program cache, and one additional cache per file. storage data-storage littlefs littlefs-mbed flash. In another use case, we want to open every file in the directory (to read some info) and print this out. The LittleFS image is made using the mklittlefs utility, parameters for this application create a 64kB image: mklittlefs -d 2 -c data -b 4096 -p 256 -s 0x10000 littlefs. Re: Wear levelling FATFS performance really slow even for. I have not measured the maximum stack usage, though that would be useful. It must be greater than 104bytes which is the minimum block size of a LittleFS block. Suggested values are in the range 100-1000, with large values having better performance at the cost of less consistent wear distribution. Wrapper of LittleFS for Arduino MBED Portenta_H7 boards. the send header and footer does work but sending the body became too complicated and requiring so many additional insctructions that i started worring about performance degradation. There is a minimum block size, which is slightly above 100, as far as I recall. Just integrated littlefs into my stm32 framework. littlefs is most efficient in its space usage with many small ( < 1/4 block size) files in a broad hierarchy (i. bin byte 3752 FTP: Upload of file firmware. Not a member of Pastebin yet? Sign Up, it unlocks many cool features! text 380. Edit: Er… now I’m confused… the ESP8266 core has LittleFS support as of 2. I reported before excellent performance with LittleFS. You can choose between two different filesystems, SPIFFS is the “classic” implementation and generally very lightweight, LittleFS is a pretty new implementation and focused on real directory support and performance. In my application, I store some small files on a NOR Flash and I realized today that those write are quite slow. A measurement point will be written to the measurement file. One of the things I do––instead of resolutions––is write a month-by-month Every item on. LittleFS poor write performance · Issue #9062 · …. ini (the library is available as part of the core arduino-espressif32 bleeding edge version but you need that library in the standard version): lib_deps = lorol/LittleFS_esp32 @ ^1. The LittleFS implementation for the ESP8266 supports filenames of up to 31 characters + terminating zero (i. An instance of the Little filesystem. RAM 1024K of memory is available for variables and data. LittleFS is under active development, supports directories, and is many times faster for most operations. How to define LittleFS partition, build image and flash it. This was when I grew the file size by APPENDING new records. The LittleFS port blocks on Read/Write/Erase calls until the operation has completed. LittleFS was recently added and focuses on higher performance and directory support, but has a higher resource consumption and occupancy per file, although not by default for esp32 it should be remembered that. I'm working on Arduino IDE to implement LittleFS file system. But for that I used a block size of 128. 144 297 // Requires a littlefs object and config struct. bin byte 3216 FTP: Upload of file firmware. This will involve having a small file system on the integrated or external flash. I did a performance comparison and in this scenario LittleFS was much . Here’s a performance comparison against SPIFFS, another very commonly used file system. É tão simples de se utilizar quanto o SPIFFS, tem melhor performance e suporte a diretórios, . I do not have performance measurements to confirm this, but yes I would expect so. I would like to know if LittleFS can overcome the fragmentation issue and if is it possibile to use it on SDCard connected through SDIO to an STM32 microcontroller. lfs_ssize_t lfs_file_read(lfs_t *lfs, lfs_file_t *file, void *buffer, lfs_size_t size);. By focusing on a small set of multipurpose data structures, this high-integrity embedded file system. The littlefs has strong copy-on-write guarantees andstorage on disk is always kept in a valid state. O LittleFS foi adicionado recentemente. It is least space-efficient with many files of size > 1/4 block size and < 1 block size, and with deeply-nested directory structures. Wrapper of LittleFS for Arduino MBED RP2040 boards. Problems: The performance varies between 2 extreme outcomes: Everything loads inconsistently, and often get cut (size of file sent is smaller than actual). There's quite a lot of files (100s) and this can take a long time - due to the fact that _lfs_file_open_ will cause another directory traverse to find the top block of the file. It avoids recursion, limits dynamic memory to configurable buffers and at no point stores an entire storage block in RAM. lfs_size_t block_count; // Number of erase cycles before littlefs evicts metadata logs and moves // the metadata to another block. By default, this file system finds the optimal configuration from the underlying block device's geometry, but you can override this to optimize special situations. LittleFS and FFat both allow to fill the FS 100% writing times per records remain the same throughout fill level. Wear levelling FATFS performance really slow even for. LittleFS poor write performance · Issue #9062 · ARMmbed/mbed. I have a Sparkfun Things Plus RP2040 with 16MB of onboard flash. At my work, we are using littlefs on several products, it works quite well. However, the LittleFS implementation of the official releases has some bugs, so we want to humbly direct you to our Squirrel firmware builds [2], which mitigate some important issues. The littlefs needs a read cache, a program cache, and one additional // cache per file. Performance und Overhead der verschiedenen Dateisysteme. Not a member of Pastebin yet? Sign Up, it unlocks. Any performance increase? also you need to flush (or close) the file before you measure the time as a buffer could still be in memory. index cost read readb write writeb erase 0 2140 786 402432 407 208384 54 1 1201 537 274944 202 103424 26. Now I attempted to OVERWRITE early records of a large file - like one would do in a circular buffer - and ran into major. The purpose of this device is to record and log data to a SPI flash memory . Here’s a performance comparison against …. The configuration struct provides the filesystem with the block device operations and dimensions, tweakable parameters that tradeoff memory usage for performance, and optional static buffers if the user wants to avoid dynamic memory. esp8266: flash compiled firmware and filesystem (. (3) Performance metrics to monitor IoT server application and extensions beyond the simple logging of Serial Monitor. I encounter a problem, which I think is mostly a configuration problem with LittleFS. Using LittleFS as Default Filesystem. Einige Performance-Vergleiche der Dateisysteme gibt es auf der Seite der LittleFS-Bibliothek für die ESP-IDF. LittleFS supports power fail safety and high performance . It is the fread that takes all the time, CPU speed is 240MHz, flash is 16MB WROVER at 80MHz QIO. The investment return and principal value will fluctuate so . First, connect the I2C module to the LCD. CPU usage from other tasks is a few percent total. I have been looking at littlefs among others but I'm afraid that littlefs up performances), which means you seriously needed a UPS. OpenHarmony激进特征社区版/littlefs. It is not ready for any kind of production system. LaurentLouf opened this issue Dec 11, 2018 · 7 comments Assignees. LFSv2: inline files performance drop · Issue #203 · littlefs. Filesystems for computers are not the best bet for embedded. LittleFS is a small Flash file system. Power-loss resilience - littlefs is designed to handle random power failures. Formatting a ~512KB partition: FAT: 963,766 us SPIFFS: 10,824,054 us LittleFS: 2,067,845 us. ESP WiFi relay project – preview – owenduffy. Footprint – Code for LittleFS takes 13KB less storage than FAT, of how it works and performance/reliability/memory usage trade-offs. LittleFS supports power fail safety and high performance. It takes littleFS almost 40s to realise that the FS was full! After that, looping through the dir twice (first to know how many files are there, and then another one to delete them) takes around 220s. A great idea from @mon, metadata_max provides a workaround for performance issues littlefs faces with large block sizes (https://github. Bad performance / big number of reads when using LittleFS. lib_deps = lorol/LittleFS_esp32 @ ^1. Prior to switching to LittlFS, I was in the process of converting a FATFS library to a No Operating System (No-OS), Non-blocking library using Protothreads. Bounded RAM/ROM - The littlefs is designed to work with a limited amount of memory. January 24, 2019 by Kerry Scharfglass 52 Comments. focuses on higher performance;; supports directories;; higher filesystem and per-file overhead (4K minimum vs. Learn about the LittleFS file system and how to use it with ESP8266 NodeMCU to read, write and delete data on flash memory. (2) Dedicated File management using an optimized file system supporting flash memory wear leveling (Not SPIFFs or LittleFS). 54, only the SerialFlash library was used for flash memory chips on Teensy. The top 256K of this memory is reserved for EEPROM emulation data and the LED blink restore program. This library facilitates your usage of LittleFS for the onboard flash. All file operations have strong copy-on-write guarantees and if power is lost the filesystem will fall back to the last known good state. Mbed support both FAT and LittleFS, so the latter was compared to the former with the following key highlights: Footprint - Code for LittleFS takes 13KB less storage than FAT, and 4KB less RAM Power loss resilience - The file system has strong copy-on-write guarantees, and storage on disk is always kept in a valid state. The board uses a Silicon Labs Blue Gecko (cortex M4 with 32KB of . This paper also contributes several implementation techniques to leverage kernel infrastructure without throttling write performance. Now include LittleFS: #include #define SPIFFS LITTLEFS Initialize it using. by Roberthh » Mon Dec 16, 2019 8:13 pm. STM32MP1 runs Linux and I am sure SQLite as well ;) And even leaving the MP1 aside, the STM32H7 micro controller has a ARM Cortex-M7 core which runs up to 550MHz. with a high performance and a rich set of IO capabilities. A little fail-safe filesystem designed for embedded systems. LittleFS File System Function Block diagram Espressif esp32 Wi-Fi Bluetooth Microcontroller SPIFFS is the original filesystem and is ideal for space and RAM-constrained applications that utilize many small files, care about static and dynamic wear-leveling and don't need true directory support. littleFS, a BSD licensed open source filesystem by ARM, Here's a performance comparison against SPIFFS, another very commonly used file . Right after that, I format the filesystem and try to re-mount it, and then it returns -28 (no space left on device). It stores metadata in log structure and data in COW structure. LittleFS is recently added and focuses on higher performance and . ESP8266 VS Code PlatformIO: Upload Files to Filesystem LittleFS. Currently, LittleFS is not included in ESP-IDF, but there is a third-party porting component esp_littlefs that can be used directly in ESP-IDF. Cython was chosen as an easy method is offered to generate the binding and the littlefs library in one step. It is recommended to use LittleFS instead. #big-tcp #computer-networking #tcp #network-performance littlefs. To compare the “performance” between the standard and a non-blocking LFS libraries, I wrote two test routines that continuously reads a 10k ( . Formatting a ~512KB partition: FAT: 963,766 us SPIFFS: 10,824,054 us LittleFS: 2,067,845 us Writing 5 88KB files:. Greetings! I'm looking into doing an embedded systems project on a microcontroller with a Cortex M0 or M3 processor (haven't picked a specific part yet). Next test was to fill the file system with approx 45% with a …. Its performance is also terrible. Here are some naive benchmarks to give a vague indicator on performance. As a trial I made a little block device driver using the RTC memory and Littlefs. LittleFS poor write performance #9062 I encounter a problem, which I think is mostly a configuration problem with LittleFS. 6; ebenso die Vorversionen) die LittleFS-Bibliothek und bei. Filesystem overhead on the flash is minimal as well. bin byte 2048 FTP: Upload of file firmware. STM32 is a very broad range of chips. [experimental] Mbed OS wrapper for LittleFS v2. Espressif also offers a graphical tool to simplify this process. LittleFS is currently used by ARM's Mbed project that is working on an operating system for IoT devices. LittleFS Introduction LittleFS is recently added and focuses on higher performance and directory support but has higher filesystem and per-file overhead (4K minimum vs. It is pretty standard stuff unless I'm doing something wrong with fread parameter that is 1, but that was my understanding of how to use it. Connected to reef-casa-sopra IP address: 192. md LittleFS_Mbed_RP2040 Library. mbed, mbed_rp2040, ArduinoCore-mbed, mbed_nano. Suggested values are in the // range 100-1000, with large values having better performance at the cost // of less consistent wear distribution. I did a performance comparison and in this scenario LittleFS was much faster for serving the files. I'm porting LittleFS in a project I'm working on and when I try to mount it, it returns -84 (Corrupted). LittleFS is recently added and focuses on higher performance and directory support but has higher filesystem and per-file overhead (4K minimum vs. LittleFS is a lightweight file-system that’s being developed for embedded systems. Hi, I just implemented a small PoC of littleFS working on our custom board. LittleFS Introduction & Install ESP8266 Filesystem. This struct defines the method of interacting with the filesystem and contains all of the data required for the C software. Currently littlefs-fuse has been tested on the following OSs: Linux; FreeBSD. This article is shared from Huawei cloud community< #Hongmeng light kernel M core source code analysis series II-02 file system LittleFS >, author: zhushy. Details: For the interface, I use HTML & CSS compressed to. LittleFS – Renzo Mischianti. com is the number one paste tool since 2002. Memory Constraints The block size defined in the LittleFS configuration must be a multiple of the data flash erase size of the MCU. Wrapper of FS (FATFS or LittleFS) for Arduino MBED nRF52840-based boards, such as Nano_33_BLE boards. tweakable parameters that tradeoff memory usage for performance, . Even the latest version is HORRIBLY buggy. Es gibt anders als bei SPIFFS bei . Browse The Most Popular 8 C Plus Plus Spiffs Littlefs Open Source Projects. LittleFS poor write performance #9062. There are two files in my memory, a configuration file and a measurement file. Writing performance reviews is possible with the right information. LittleFS is recently added and focuses on higher performance and directory support, but has higher filesystem and per-file overhead (4K minimum vs. SPIFFS' 256 byte minimum file allocation unit). And do all of this with reasonable performance, in a reasonably flash-space efficient way without consuming much RAM. Probably the performance boost make some race conditions to come out. FatFS is known to corrupt the filesystem in brownout conditions [1], please use LittleFS. EXT2/3/4, BTRFS, F2FS are the first of many solutions which come to mind, but how do they all compare? Typical queries include performance, . Eventually they get full and need to be garbage collected to remove outdated entries. Also there as a recent change that may have negatively impacted read performance:. The purpose of this device is to record and log data to a SPI flash memory (S25FL128L). Recursion is avoided and dynamic memory is limited to configurable buffers that can be provided statically. ini (the library is available as part of the core arduino-espressif32 . We can use LittleFS to store files in flash without having to use any external memory with ESP8266 NodeMCU. The process carries on at around t=802s. This comes with a performance penalty, but works well for the littlefs, since littlefs is intended for embedded systems. Condition: I have NodeMCU as webserver in AP mode to control a servo. I will get back to you on the performance related information. An important features that simplify the sharing of firmware (and It is used by the most productor) is to generate pre-compiled binary file with only the sketch part (or filesystem). SPIFFS' 256-byte minimum file allocation unit). Currently you need to add the LittleFS-ESP32 library in platformio. LittleFS 提供了几个配置选项,可用于调整不同硬件上的文件系统性能。 size to improve performance by caching more of the block device. LittleFS is unfortunately unusable. LittleFS as implied by the name is intended to be a "little" file-system for embedded devices, in particular "Internet of Things" style platforms. Here's a performance comparison against SPIFFS, another very commonly used file system. Flash File System Recommendations. You can use the mklittlefs tool for the image of LittleFS file system. 473s, I experience what I think is the deletion of a master block. littlefs - A little fail-safe filesystem designed for microcontrollers. Dynamic wear leveling - littlefs is designed with flash in mind, and provides wear leveling over dynamic blocks. The “high-integrity embedded file system” is resilient to power-cuts, supports wear-leveling, and comes in a small memory and storage footprint. Pastebin is a website where you can store text online for a set period of time. Larger caches can improve performance by storing more data and reducing . 10 FTP: Connected! FTP: Upload start! FTP: Upload of file firmware. A portion of the flash memory may be used for file storage using the LittleFS library. It's called chamelon, it's based off LittleFS, and if you're brave, performance when searching directories is not worse than O(n). Above is the dialogue from upload of both files. SPIFFS’ 256 byte minimum file …. parameters that tradeoff memory usage for performance, and optional static buffers if the user wants to avoid dynamic memory. LittleFS - A high-integrity embedded file system. Spiffs has inferior performance to littlefs. LittleFS has a little bit of advantage, ans its max times are only 0. Author has a helper library for coroutines, which can be used to plug in asynchronous hooks, making the fs non-blocking. 143 // Must be a multiple of the read size. I use littlefs in our project and it's been great! Just make the erase api a no-op and use a block size of 512 which it seems most sd-cards use. It only "works" with tiny file systems. In another post I mentioned that I switched from FATFS to LittleFS (LFS) on an STM32. X have performance issues when you have a lot of small files. by Renzo Mischianti · Published 1 April 2021 · Last modified 10 March 2022. LittleFS is an independent mbed os based system that could potentially work with another FreeRTOS based system. The LittleFS file-system is developed under the Apache 2. Solder Female Header pins to the LCD and connects the I2C module in such a way that the four pins of the I2C (GND, VCC, SDA, SCL) point outwards. The idea was that using the flash memory would be less power hungry than constantly writing to the SD card. bin byte 5360 FTP: Upload of file firmware. littlefs does use recursion, but all recursion should be bounded. 将LittleFS Porting到STM32 G431RB板子上,编程猎人,网罗编程知识和经验分享,解决编程疑难杂症。. 127 LittleFS opened! Current firmware version: 0. littlefs-python provides a thin wrapper around littlefs, a filesystem targeted for small embedded systems. 7 C lwext4 VS littlefs Less time debugging, more time building. v2 added the CACHE_SIZE config option for performance so READ_SIZE and WRITE_SIZE can be reduced without a cost. This library facilitates your usage of FS (FATFS or LittleFS) for the onboard flash. Software Performance C Plus Plus Esp8266 Littlefs Asyncwebserver Projects (3) C Plus Plus Littlefs Asyncwebserver Projects (3) Advertising. Copy link Contributor LaurentLouf commented Dec. Scout APM allows you to find and fix performance issues with no hassle. SPI Flash(W25Q128JV)에 데이터를 write/read 할 때 file system을 사용하려고 한다. LittleFS for Files on Flash Chips. Hence, a higher number means a better littlefs alternative or higher similarity. LittleFS works with a FAT file system backed by either an secure digital card or NOR Flash memory. Performance improvement for lfs_file_rawseek. SPIFFS' 256 byte minimum file . /* variables used by the filesystem */ const U8 lfs_read_buf [256]; const U8 lfs_prog_buf [256]; const U8 lfs_lookahead_buf. raw download clone embed print report. bin byte 7408 FTP: Upload of file firmware. Cool Tools: A Little Filesystem That Keeps Your Bits On Lock. So we have the equivalent of a very small SSD in each of our ESP8266s and ESP32s but it mostly remains unused. LittleFS update for partition label and multiple partitions. in any ways the Instruction cache is perfectly transparent afaik. Instead of using SD cards for . fatfs가 STM32CubeMX에 탑재되어 있어 설정이 쉽지만 littlefs가 . However I get the error message as "srcLITTLEFS. SPIFFS is currently deprecated and may be removed in future releases of the ESP8266 core. Number of erase cycles before LittleFS evicts metadata logs and moves the metadata to another block. ARM's Mbed OS is designed for security, cloud management services, drivers for common embedded/IoT hardware and is a real-time operating system designed in C/C++ and available under the Apache 2. Which solution can help me best and how ? and thank you a lot. Cool Tools: A Little Filesystem That Keeps Your Bits On Lock. Littlefs, the high-integrity embedded file system in Mbed OS is optimized to work with a limited amount of RAM and ROM. A LittleFS library is now included, providing littlefs published by ARM with a set of drivers for common memory chips and a high-level API compatible with the Arduino SD library. LittleFS supports power fail safety and high performance main 1 branch 5 tags Go to file Code khoih-prog Fix typo eb1a3a7 7 days ago 30 commits README. FS supports power fail safety and high performance. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other . pub struct LittleFs { /* fields omitted */ } [ −] Expand description. So, we’ll use LittleFS in this tutorial. most directories have many files or other directories in them). The LittleFS needs a read cache, a program cache, and one additional cache per file. Larger caches can improve performance by storing . NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. ESP-HMI is Espressif's high-performance and low-cost solution for . char filename[32] ), and as many. One way to program the memory is to use Espressif’s Flash Download Tool. Each read operation will read a 512 byte block from the SD card. It combines the idea of log structured file system and COW (copy on write) file system. So it is New Year's Eve, a time to take one last look back and then step forward onto fresh calendar pages, stripped bulletins boards, and clean slates. Even if this package uses Cython, the goal is not to provide a high performance. LittleFS is recently added and focuses on higher performance and directory support, but has higher filesystem and per-file overhead. I am trying to write a program which uses the flash as a buffer (let's say to store 5MB of data) before writing to an SD card. To compare the “performance” between the standard and a non-blocking LFS libraries, I wrote two test routines that continuously reads a 10k (10240 bytes) file from an SD card using LFS. SPIFFS’ 256 byte minimum file allocation unit). LittleFS supports power fail safety and high performance - GitHub - khoih-prog/LittleFS_Mbed_RP2040: Wrapper of LittleFS for Arduino MBED RP2040 boards. Now include LittleFS: #include #define SPIFFS LITTLEFS. Haskell bindings to the btrfs API. I am using LittleFS as the the file system for my device. SPIFFS’ 256-byte minimum file allocation unit). How to initialize LittleFS in PlatformIO on the ESP32 using. Management of the file system via Admin mimicking Windows File Explorer with Drag&Drop. But with the introduction of new LittleFS, SPIFFS become deprecated. ESP32: integrated LittleFS FileSystem – 5. This caused me to write a file explorer for LittleFS in Windows. It worked, but was of little real use. The command to read data from a file is lfs_file_read(). At its core, littlefs is built out of a bunch of small 2-block logs (metadata pairs, similar to journals). esp8266: flash compiled firmware and filesystem (. The performance data quoted represents past performance and current returns may be lower or higher. 142 // performance by caching more of the block device. Half of this memory (RAM1) is accessed as tightly coupled memory for maximum performance. Suggest an alternative to littlefs. gz (2KB & 4KB), both loaded using LittleFS. Would you be willing to share your mklittlefs. WinBox - a professional HTML5 window manager for the web: lightweight, outstanding performance, no. The wrapper provides a pythonic interface to the filesystem and allows the creation, inspection and modification of the filesystem or individual files. I plan to implement everything in this project from scratch, including the. GitHub - khoih-prog/LittleFS_Mbed_RP2040: Wrapper of LittleFS for Arduino MBED RP2040 boards. Unfortunately this garbage collection is expensive ( O (erase size^2) ). Hello, I am using LittleFS as the the file system for my device. WeMos D1 mini (esp8266), integrated LittleFS Filesystem. Next test was to fill the file system with approx 45% with a file created in the append mode. Now, to power the circuit, connect the GND pin. littlefs-fuse uses FUSE to interact with the host OS kernel, which means it can be compiled into a simple user program without kernel modifications. 0 (alpha) - ARMmbed/mbed-littlefs If you're in v2, you may get performance by reducing the READ_SIZE/WRITE_SIZE to 1 byte if your flash part supports it. ini (the library is available as part of the core arduino-espressif32 bleeding edge version but you need that library in the standard version):. It's two files, around 10 bytes each, and the write takes ~3s to write both on the file system. Performant is an unofficial adjective used in computer science to indicate a program's ability to perform acceptably. LittleFS provides several configuration options that you can use to tweak the performance of the file system on different hardware. ESP32: integrated LittleFS FileSystem. I'm programming the RP2040 using Arduino IDE which runs MBedOS on the board. The I began overwriting beginning at record 0. Wear leveling - Since the most common form of embedded storage is erodibleflash memories, littlefs provides a form of dynamic wear leveling for systemsthat can not fit a full flash translation layer. Littlefs: Enumerating directory and opening files. The complete schematic diagram for the ESP8266, I2C LCD and NodeMCU based LittleFS test Circuit is shown below. LittleFS is an open source file system specifically designed for small devices such as IoT nodes for SPI NOR flash and SD card storage, and introduced in Mbed OS 5. provide a high performance implementation. littlefs_create_partition_image(graphics device_graphics) Performance. SerialFlash provides essentially raw access to. Installation der LittleFS-Bibliothek Da LittleFS noch kein Standarddateisystem für den ESP32 ist, muss man für die aktuelle Version des Arduino-ESP32-Pakets (Version 1. Performant is an unofficial adjective used in computer science to indicate a program‘s ability. Nice! I’ll add an issue to the github mentioning this, as LittleFS is missing from PIO at the moment as an FS option, for both ESP8266 and ESP32. littlefs takes in a configuration structure that defines how the filesystem operates. As you may have noticed, littlefs takes in a configuration structure that defines how the filesystem operates. LittleFs Create Failed! arduino: LittleFS Create Failed! Arduino esp8266: Littlefs with multicore: Is there a limit on the number of files in a directory? littlefs won't flash/get created on ESP32 with 16MB (but works with 4MB) Reading Files Larger than RAM in Blocks? Performance improvement for lfs_file_rawseek: littlefs speed test. LittleFS strives to be a fail-safe file-system that can work with minimal amounts of RAM/ROM, power-loss resilient, and supports wear-leveling for flash memory. First thing - Adding LittleFS is a big win for embedded systems! Removing FatFS may be a problem, LittleFS uses an internal file system format, so anyone needing SD Card or USB MSC will need FatFS 1) Pleased add FatFS back to the SDK (latest I have seen is 2. Now with error monitoring and external services monitoring, Scout is a developer's best . These logs are appended with new information as the filesystem is written to. Released: Jan 10, 2022 A python wrapper for littlefs Project description littlefs-python provides a thin wrapper around littlefs, a filesystem targeted for small embedded systems. SPIFFS/LittleFS with ESP8266 - Development Platforms. My take is that nodemcu needs a reliable filesystem that can handle reading/writing/appending to files and not corrupt the filesystem (at least) in the absence of power fails.