# armink/EasyFlash

Lightweight IoT device information storage solution: KV/IAP/LOG. | 轻量级物联网设备信息存储方案：参数存储、在线升级及日志存储 ，全新一代版本请移步至 https://github.com/armink/FlashDB

Repository: https://github.com/armink/EasyFlash
Canonical: https://ross.abutalabs.com/products/easyflash
Language: C
License: MIT
License Family: permissive
Topics: flash, embedded, key-value, iap, log, iot, kv
Last push: 2025-03-14T14:10:34+00:00

## Health v2 (maintenance only)
Score: 28/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 11, release rhythm 8, longevity 100
- inputs: {"age_days": 4239, "days_push": 537, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2362, forks 814 (observed 2026-08-28T04:06:40.935536+00:00)

## What it is
EasyFlash is a lightweight open-source embedded Flash storage library written in C, providing key-value (ENV) parameter storage with wear leveling and power-fail protection, IAP (in-application programming) firmware update helpers, and direct-to-Flash log storage without a filesystem. It is designed for resource-constrained MCUs in IoT, smart home, wearable, industrial, and medical products, with a successor project (FlashDB) recommended for new designs.

## Use cases
- persist device settings as key-value pairs on MCU flash
- store logs on flash without a filesystem
- implement in-application firmware upgrades with CRC32 verification
- add power-fail-safe parameter storage to an embedded product
- wear-level flash writes on small IoT devices
- migrate stored parameters across firmware upgrades

## When to choose
- you need a tiny NoSQL-style KV store directly on MCU flash with near-zero RAM overhead
- your product has no filesystem and needs persistent logs or settings
- you want built-in wear leveling and power-fail protection on embedded flash
- you need a simple IAP bootloader/application update mechanism

## When to avoid
- you are starting a new project - FlashDB is the actively developed successor
- your flash cannot support reverse writing (e.g., STM32L4 internal flash) and you need the NG mode
- you need a full relational or time-series database
- you are on a platform with abundant resources where a filesystem or real database is more appropriate

## Facets
- artifact type: library
- maturity: maintenance
- function: database, logging, file-system
- domain: embedded-systems, iot, databases
- platform: embedded, c, iot
- tags: key-value-store, flash-storage, wear-leveling, power-fail-safe, iap, firmware-update, embedded-database

## Member repositories
- armink/EasyFlash (main) score 28

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:40.935536+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:36:03.575114+00:00, confidence not recorded.
  - readme: https://github.com/armink/EasyFlash (fetched 2026-08-28T04:06:40.935536+00:00, sha 0cb484e56c5f)
- Data as of 2026-08-30T08:39:29.467469+00:00.