Esp8266 efuse. 14 Download the latest Flash Download Tool.

Esp8266 efuse. Some eFuses are already burned at the factory stage: MAC (Factory MAC Address). py read_protect_efuse BLOCK3 command in the terminal configured with ESP-IDF to enable the read-protection for Efuse BLOCK3, why is the data of the Efuse BLOCK3 all 0x00 when I input esp_efuse_read_block() to read the Efuse BLOCK3? After the Efuse BLOCK3 is read protected, it cannot be read anymore. . But when I use the Flash Download Tool to write the firmware onto the esp32-s3 it is not working. But eFuse is a one-time-programmable memory. Here’s my experience and tips for others facing similar issues. , data parameters used by ESP-IDF of ESP32) or user defined parameters. Thanks. Use with caution. 6. The eFuse is a single bit of non-volatile memory with the restriction that once an eFuse bit is programmed to 1, it can not be reverted to 0. EXAMPLES ¶ Display device features, SPI flash manufacturer and device ID: esptool flash_id Flash ESP8266 Espressif AT v1. Jul 26, 2015 · This page describes the physical memory layout of the ESP8266 family. The read content is stored in a generated text file, named in the format “Chip MAC + Reading Time”. There is a problem with the module’s eFuse. Libraries, crates and examples for using Rust on Espressif SoC's - esp-rs Sep 5, 2023 · is stub and send flash finish The download progress displayed FINISHED in blue so I hit STOP and closed the app. Jul 18, 2022 · 3个EPS01S，有两个成功烧录，有一个在烧录开始就提示这个错误 -chip efuse check fail，求问怎么解决，网上看了很多方法都不行 [ESP8266Loader_spi [1]] [espDownloader. Jun 18, 2024 · 文章浏览阅读976次，点赞3次，收藏3次。再bb几句：下载失败也可能是硬件接线的问题，TTL转串口模块的TXD与ESP8266的RXD相接，RXD与TXD相接，注意这一点。客服让我把configure里面的spi download. 3v, but there is a creator who manufactures an ESP8266 module that is 5v, both in Power and Data. py][line:351][ERROR]: Chip sync error: Failed to connect to ESP8266 In ESP8266, universal MAC address is generated from base MAC address in EFUSE or other external storage. 有人碰到相同的问题吗,spi speed spi mode 和波特率都尝试过,看起来是波特率的一些问题,硬件上晶振使用的是24M,是否有影响?又有人问这个问题了更新这个问题最后的处理: 多试了很多次不知道怎么好了~ 怀疑还是接线不正常,可以重新接线,或把下载波特率降低试试 Latest ESP8266 SDK based on FreeRTOS, esp-idf style. MAC address is pre-burned in the chip by efuse before delivery and MAC address of each chip are different. exe and instructions, and send the eFuse data to Espressif for further debugging. I've tried the following tutorials for loading firmware. This eFUSE is divided into 4 blocks of 256-bits each. 2. If the values are zero a warning will be printed bit 3 in efuse_rd_disable [3:0] is mapped to flash_crypt_config this bit is at position 19 in EFUSE_BLK0_RDATA0_REG """ word0 = self. UPDATE on 150916: 1. In this case, select the correct module based on your setup. - espressif/ESP8266_RTOS_SDK Please make sure that when ESP8266 boots, the strapping pins are held in the required logic levels. h May 14, 2017 · This is a good way to fix the efuse issue. , programmed) to store data into the ESP32. macAddress() esp_read_mac() //for which you need to specify an interface esp_efuse_mac_get_default() seems to get the factory assigned mac address of the chip. May 9, 2024 · 文章浏览阅读1. I am trying to use native USB to flash on windows and after some time this is eFuse Manager [中文] Introduction eFuse (Electronic Fuses) are microscopic one-time programmable fuses that can be "burned" (i. Messing with efuses is one of the few ways to brick an esp32, so be careful. 7k次。使用espressif推出发基于python的底层烧写工具：esptool。_5-chip efuse check fail Jan 23, 2025 · 综上所述， esp8266 micropython 烧录工具和固件的结合使用，为进行物联网开发的工程师和技术爱好者提供了一个强大的工具集。通过合理利用这些资源，可以加速开发过程，提高产品的稳定性和可靠性。 Jun 21, 2021 · 简介在使用 ESP8266 进行开发时, 读者或多或少都能遇到固件烧写失败情况, 无论是官方提供的 windows 上 Flash 下载工具, 还是 SDK 中提供的 esptool. Jun 21, 2025 · 8266 Chip efuse check error esp_check_mac_and_efuse解决方案，前面简单讲解了WM8960语音芯片工作方式，WM8960做master，之前参数配置ADC/DAC采样速率的是44. conf file to the chip’s eFuses. ). 3V 供电正常，但用万用表测量到IO0 =1. eFuse bits can only be burned from 0 to 1, attempting to set any back to 0 will have no effect. We also show how to change your board’s MAC Address. 14 Download the latest Flash Download Tool. 答：若下载命令⾏行行框中出现 “ESP8266 Chip efuse check error esp_check_mac_and_efuse”，代表设备的 efuse 出现错误，可能有以下原因：设备的 efuse 没有问题，待下载设备选择有误。此时，请重新选择待下载设备。设备的 efuse 确有错误。【ESP8266】esp8266烧录固件出现错误解决（利用Arduino），灰信网，软件开发博客聚合，程序员专属的优秀博客文章阅读平台。 Jun 18, 2024 · 今天在烧录ESP8266固件时遇到了这个问题，技术客服给了个有效的解决方案。选择固件的时候可以先确认自己的模块是ESP8266或者EPS8285主控，这在选择DOWNLOADTOOL时还不一样。然后波特率是115200，我在这个地方选… It triggers several reads to force the eFuse controller to reload eFuses and update status registers. - espressif/ESP8266_RTOS_SDK Sep 20, 2025 · 文章浏览阅读1. I can flash the firmware via VS-code + espressif-extension without any problems. ADC Oct 25, 2020 · The AT commands worked great on my ESP8266 ESP-01's when I got them. Local MAC address is derived from the universal MAC address. Base MAC address ¶ If using the default base MAC address factory programmed by Espressif in BLK0 of EFUSE, nothing needs to be done. Using a third party flash download tool may sometimes cause issues if it writes incorrect values to the fuse bits. Facts about my code No personal data will be stored, no ota partition is available and WiFi not configured. Since the esp8266-01 doesn't have the adc ecposed/available i wanted to put this thing on my arduino nano. Mar 25, 2023 · We have couple of ESP32 devices and in both of them we are facing an ERROR as "ESP32 chip efuse check error esp_check_mac_and_efuse". 3v, and Transistors for Level Converting the 2 Data lines. Possible causes include: The eFuse is fine, but the wrong module is selected in the tool. I even flashed it to a module with 1MB flash and it reacts to AT commands, but has wrong RF settings (the bin file overlaps the RF settings region). py and pyserial. Powersupply is okay ie 3. --do-not-confirm Do not pause for confirmation before permanently writing efuses. Oct 16, 2024 · With ignore_efuse_mac_crc but without ignore_efuse_custom_mac: device boots up, can be detected by ESPHome, but not home assistant. CHIP: ESP8266 LOAD PATH CONF: MultiDownload 2 test com val: COM7 set string eFuse Error The ESP8266 Chip efuse check error esp_check_mac_and_efuse message indicates an issue with the eFuse. Sep 4, 2019 · Hi all The ESP8266 works on 3. Jan 18, 2016 · ESP8266 DEMO 板子下载时，一直在 SYNC 等待上电同步状态。 IO0 和 CH_EN 两个开关状态已按照说明配置，IO0 = L ,CH_EN= H,3. In ESP8266, universal MAC address is generated from base MAC address in EFUSE or other external storage. eFuse 是芯片中一块特殊的存储空间，它内部由熔丝相互连接。当流经的电流达到一定程度时，熔丝会被烧断，该位的值会改变。熔丝熔断是单向的、不可恢复的。因此 eFuse 的值只能被烧写一次，只能由 0 变到 1。 Jun 11, 2025 · By securely storing cryptographic keys and critical security configuration bits within eFuses, the ESP32 can protect sensitive code and data, ensure software integrity, and authenticate itself. My question: I connected my Arduino Nano (ATmega328 5v 16MHz) to this ESP8266 module, and when running Nov 12, 2022 · Documentation says "Read protection prevents software from reading eFuse fields, only hardware can access such eFuses". I can't include esp_system. Nov 6, 2017 · The flash I used on board is W25Q64JVSSIQ, 64Mbit SPI flash from Winbond. Oct 25, 2020 · This tutorial on installing firmware seemed very promising, but I was getting "esp8266 chip efuse check error esp_check_mac_and_efuse" errors. Apr 18, 2020 · 1. ESP8266的WIFI是软驱动, 会占用CPU时间, PWM, 中断及I²C都是模拟的, 都会占CPU时间. This command can be run after burn operations to make sure that there is not errors. py. system/efuse demonstrates how to use the eFuse API on ESP32, showing read and write operations with fields from the common and custom eFuse tables, and explaining the use of virtual eFuses for debugging purposes. py summary 获取efuse信息 ESP Flash downloadtool 工具下载 bin 文件时的报错原因总结_esp8266 chip efuse check error-CSDN博客 8266烧录失败 :. read_efuse (0) rd_disable = (word0 >> 19) & 0x1 if rd_disable == 0: """ we can read the flash_crypt_config efuse value so go & read it (EFUSE_BLK0_RDATA5_REG [31:28 The eFuse settings for ESP8266 are not publicly documented for some reasons. Postby ubuntu1 » Mon Aug 23, 2021 6:04 am Read Efuse: Reads the chip’s eFuse content, with functionality identical to esptool summary. Background Because of the concern about the reliability of ESP8266 chipset, learning from the Tagged with esp8266, efuse. 9V左右， Mar 19, 2019 · I flashed this large AT firmware to esp8266 on Uno WiFi Dev Ed and to an esp-12F successful. In this case, contact Espressif for esptool. I used different versions of microphytin and different ways of uploading the firmware. I get the following output form the tool: 若 eFuse 中无 flash 加密密钥，下载工具会自动在 PC 端随机生成密钥并烧录进 eFuse，客户也可以自行准备加密密钥；若 eFuse 中已有 flash 加密密钥，则跳过密钥的生成及密钥烧录过程。 Jun 15, 2015 · Contribute to esp8266/esp8266-wiki development by creating an account on GitHub. New values can be a numeric value in decimal or hex (with “0x” prefix). Apr 13, 2023 · ESP-IDF is still there under arduino-esp32, and you are welcome to use its functions. Mar 20, 2019 · Wanted to measure voltage and update that on iot dashboard. Apr 19, 2021 · ESP8266又一个模拟->数据的转换器, 电压范围为0-1V, 高于1V的电压可能会把片子烧掉. 若下载命令行框中出现 ESP8266 Chip efuse check error esp_check_mac_and_efuse，代表设备的 eFuse 出现错误，可能有以下原因：设备的 eFuse 没有问题，待下载设备选择有误。 Oct 24, 2017 · EFUSE MODE: 1 SELF. The eFuse fields can be useful to store: device types, serial numbers, some system variables, etc. eFuse是一种一次性编程的存储空间，用于存储关键信息如MAC地址。 ESP8266的eFuse大小为128 bits，而ESP32的eFuse更大，分为4个BLOCK。文章还提及了ESP8266和ESP8285的细微差别，并介绍了espefuse. I was able to read the mac of the chip in Linux system with command of eFuse Manager [中文] Introduction eFuse (Electronic Fuses) are microscopic one-time programmable fuses that can be "burned" (i. I do have both buttons so i can easy enter download mode. What I'm struggling with I want to protect my firmware from being easily read or modified but I also need to be able to There is a problem with the module’s eFuse. You can use MAC address as the identifier. Mar 21, 2018 · 每次开始烧写后都出现esp8266 chip efuse check error esp_chck_mac_and_efuse的错误。请问如何解决 I successfully uploaded AT firmware to my ESP-01 module after initial struggles with errors like ESP efuse using esptool. 0_16_08_10. Tutorial 1 gives the following errors 5-chip efuse check fail [ESP8266Loader_spi[1]][espDownloader. 在ESP8266里面有个API (system_get_chip_id ())能够获得一个唯一ID号，请问在ESP32中是否也有类似的API呢？ 2. , programmed) to store data into the ESP32-C6. For more details about Espressif chips eFuse features, see the ESP32 Technical Reference Manual. The eFuse Manager component is a Aug 15, 2018 · What does "secure boot check fail" means? Postby Mr_Red » Mon Sep 10, 2018 12:26 pm Fundamentally, an eFuse is a single bit of non-volatile memory with the restriction that once an eFuse bit is programmed to 1, it can never be reverted to 0. Dec 10, 2022 · esp8266 01s刷原厂固件报错chip efuse check error [复制链接] Aug 11, 2025 · 本文详细介绍使用Arduino板烧录ESP8266-01 wifi模块AT固件的过程，包括所需材料、接线原理图、烧写方法及常见错误解决办法。适用于希望进行远程控制项目的电子爱好者。 Oct 28, 2024 · Why I use ESP8266-07s not ESP8266-01S for simple programmable controller # esp8266 # efuse Add Comment 3 min read eFuse Manager [中文] Introduction eFuse (Electronic Fuses) are microscopic one-time programmable fuses that can be "burned" (i. So let’s quickly look into the eFUSE before we get into the security features. py工具的使用方法，用于读取和操作ESP32的eFuse。 --path-efuse-file PATH_EFUSE_FILE For host tests, saves efuse memory to file. Of primary interest to us right now are blocks 1 and 2. After I input the command espefuse. With both: everything should work. Before trying to upload the firmware, I had uploaded a blank sketch onto the ESP8266. And the SDK is ESP8266_NONOS_SDK_V2. # Return the 128 bits of ESP8266 efuse as a single Python integer Sep 23, 2024 · The SPI_BOOT_CRYPT_CNT eFuse bit will be set to enable Flash Encryption, and the SECURE_BOOT_EN eFuse bit will be set to enable Secure Boot V2. If you want to modify the efuse hardware, you need to use the tools designed for modifying the specific hardware, which are the esptools and the efuse functions in esp-idf. Sending AT commands to it does not return anything. 下面笔者提供几种常见的烧写失败的原因和对应解决方法. , data parameters used by ESP-IDF of ESP32-C6) or user defined parameters. 如果没有相关API的话通过esp_efuse_mac_get_default ()这个函数获取到的一个MAC地址是唯一所有芯片的MAC吗？ Feb 2, 2015 · Download Settings Flash :Winbond W25Q32 DCDC : TPS62740 After switching the crystal (using crystal and cap from ESP12 module), use external power source Nothing looks work And it no loger able to connect to Flash Tool When reset under normal mode (GPIO -> HIGH Everything looks fine Latest ESP8266 SDK based on FreeRTOS, esp-idf style. (IDFGH-11133) #12303. Despite challenges, Arduino IDE worked flawlessly. Sep 17, 2024 · Upgrade your ESP8266 in the USA! Learn how to flash the official AT firmware quickly & easily. Initial State of eFuses On relatively new chip, most eFuses are unburned (value 0). Here is the module: The module has only 4 Legs: Vcc (5v) Gnd TX RX The module contains an LDO from 5v to 3. 1w次，点赞3次，收藏19次。本文详细解析了ESP8266和ESP32在上电启动、固件下载及启动log中的常见问题，包括Bootloader报错、GPIO状态、Flash错误、程序偏移、硬件连接等，并提供了排查和解决方法。 Oct 28, 2024 · 1. The tool will also apply all configuration settings from the configure\esp32s3\security. We are attaching the Screen shots of an ERROR and the efuse fields log files of both the devices. Oct 20, 2019 · 本文详细解析ESP8266在烧写固件过程中可能遇到的九大常见问题，包括烧写模式错误、供压不稳定、串口配置不当等，并提供了具体的排查与解决策略。 Base MAC address ¶ If using the default base MAC address factory programmed by Espressif in BLK0 of EFUSE, nothing needs to be done. e. 2 firmware to ESP-WROOM-02 board: Sep 25, 2023 · reusing components/efuse with custom eFuse table without re-porting it for each esp-idf upgrade. Read Efuse: Reads the chip’s eFuse content, with functionality identical to esptool summary. fix the bug that tool does not show the MAC correctly for 48bit version of EFUSE. If using a custom base MAC address stored in BLK3 of EFUSE, call API esp_efuse_mac_get_custom() to get the base MAC address which is stored in BLK3 of EFUSE. Aug 23, 2021 · Espressif ESP32 Official Forumsystem_api: Base MAC address from BLK0 of EFUSE CRC error, efuse_crc = 0x; calc_crc = 0x. These blocks store keys for flash encryption and If you appear in the download command “ESP8266 Chip efuse check error esp_check_mac_and_efuse” Efuse represents the EFUSE of the device, there may be the following reason: Mar 7, 2018 · Hi all - I recently started working with the efuse handler. Which part of ESP8266 partition-tables should be paid special attention to? Compared to those of ESP32, partition-tables of ESP8266 have some special requirements on OTA partitions due to cache characteristics of ESP8266. Any more questions, please let us know. 0 or newer) is available on the PATH then espefuse should be as well. update MAC reading functions Jun 4, 2019 · I find trouble updating my firmware with esp8266 with following error message. One more thing, when we give the power to esp-01, after 3-4 min its automatically restarting again and again and red led turn off. py][line:468][ERROR]: ESP8266 Chip efuse check May 5, 2020 · Continuing the discussion from What is the Simplest Way to Update the Firmware of this 5v ESP8266 Module?: Hi I didn't want to start a new topic cause here I have a very good explanation BUT I could't flash my esp-01. If you've ever seen these symptoms, please let me know what worked for you. There are multiple ways to obtain it: WiFi. 焊接在主板上的模块由于串口同时连接了MCU的串口，如果MCU中固件同时有发送数据，就会出现烧录失败，提示 :ESP8266 Chip stub erro Dec 1, 2020 · I am trying to flash custom PCB with esp32 S2 wrover module. ESP32 eFuse structure The eFuse size of ESP32 is much larger than that of ESP8266, which is 256 bit * 4, divided into 4 BLOCKs to store eFuse information. If externally connected peripherals drive the strapping pins to an inappropriate logic level, ESP8266 may boot into a wrong mode of operation. Jan 30, 2020 · This guide shows how to get the ESP32 or ESP8266 NodeMCU boards MAC Address using Arduino IDE. CHIP: ESP8266 LOAD PATH CONF: MultiDownload 1 test com val: COM7 set string selection: COM7 230400 test baudrate: 230400 test baudrate selection: 1 test label: Download Panel 2 self. Jan 24, 2021 · 我使用这个的原因是，我最近在制作一个东西，烧写固件用esp的gui界面工具，每次都提示 ESP8266 Chip efuse check error esp_check_mac_and eFuse Error The ESP8266 Chip efuse check error esp_check_mac_and_efuse message indicates an issue with the eFuse. 供电电流大于500ma，网上买的串口工具供电电流都是不行的，要上主电源，或者外接电源。 2. I don't know why esp is behaving like this. Mar 8, 2016 · Corrupt MAC address in efuse Postby markwj » Mon Aug 13, 2018 5:02 am eFuse 是一种微型的一次性可编程保险丝，可以通过“烧录”（即编程）将数据存储到 ESP32 中。 EFUSE_BLK0 完全用于系统用途；EFUSE_BLK1 用于 flash 加密密钥。如果不使用 flash 加密功能，此块也可以用于用户参数；EFUSE_BLK2 用于安全启动密钥。 May 31, 2018 · The eFUSE plays an important role in the functioning of these security features. I need to store a custom MAC address in BLK3, so I wrote the following routine: Mar 6, 2024 · I have some basic questions regarding functionality of the read/write protection and eFuses which I'm unable to clarify from the documentation and existing forums. I never used NodeMCU tools but it gives me a hint: Using another tool to flash a different firmware may fix the problem. 11. For details, please refer to Offset & Size of ESP8266 Partition Tables。 In ESP8266, universal MAC address is generated from base MAC address in EFUSE or other external storage. EFUSEModules efuse_data0 EFUSE_DATA0 efuse_data1 EFUSE_DATA1 efuse_data2 EFUSE_DATA2 efuse_data3 EFUSE_DATA3 Oct 28, 2015 · Dear Sir, CHIP_ID can not be used to uniquely indicate of ESP8266EX, because the chip_id of chips for the same batch is same. espefuse is installed alongside esptool, so if esptool (v2. 0. num: 2 init finished COM: 6 ESP ROM BAUD : 115200 EFUSE MODE: 1 SELF. Then I re-opened my terminal program to monitor the ESP8266 and when I hit the reboot button, it displays its traditional garbage (at 115200 bps) but no longer displays READY. The ESP32 has a 1024-bit eFUSE, which is a one-time programmable memory. The eFuse Manager component Please make sure that when ESP8266 boots, the strapping pins are held in the required logic levels. Then I tested uploading sketches onto the chip and ever since I haven't been able to get the AT commands to work again. The eFuse Manager component Dec 7, 2021 · Hi, We want to use the esp32 flash download tool to flash our esp32-s3 based modules with the firmware for production. BLOCK1-3 is composed of 8 WORDs, BLOCK0 is composed of 7 WORDs, each WORD size is 32 bits, a total of 256 bits. Jan 8, 2016 · I read datasheet, some articles of esp8266 before using it. I can't make esp_ functions work in Arduino IDE. So sadly no you can't revert eFuse to factory (but that would be a nice to have for next chip). eFuse bits are organized into different data fields, and these data fields could be used for system parameters (i. Aug 26, 2019 · 模块：安信可ESP-12F, 8266模块 1. Step-by-step guide with software & resources. 3v which I give through asm1117. py] 5-chip efuse check fail 烧录报错 ,『瀚思彼岸』» 智能家居技术论坛 Urgent problem with Flash Download Tool and esptool. Oct 11, 2023 · 处理 EFUSE 错误如果遇到类似于 "ESP8266 Chip efuse check error" 的提示，则可能是由于芯片内的唯一 MAC 地址或其他重要参数存储区域损坏所致。 Apr 17, 2019 · 为什么，试了3个例子，都是同样问题，出现： Base MAC address form BLK0 of EFUSE CRC error， efuse_crc = 0x23; calc_crc = 0xf5 abort () was called at PC 0x400d1a13 on core 0 烦请帮忙提供解决办法，谢谢。 ESP8266 Chip efuse check error esp_check_mac_and_efuse 原因：出现 efuse check error 说明芯片内部的 eFuse 参数区域遭到意外修改。 eFuse 中通常存储着一些重要信息，比如芯片的配置以及 MAC 地址。如果 eFuse 损坏，将导致芯片不可用。 eFuse 损坏通常由过压或者静电导致。建议： Aug 22, 2025 · 介绍安信可常见模块对比 ESP-12F参数 ESP-12F引脚 ESP-12F推荐电路 ESP-12F内部原理图可以看到板载的LED被连到了GPIO2 内部晶振频率是26MHz SPI FLASH型号是W25Q32，4MB，支持4线SPI。复位引脚RST内部有12K电阻的上拉。软件开发 esp8266 的开发可以使用arduino的IDE进行开发，或者使用SDK开发使用 arduino 的IDE开发是 efuse content on ForemCreate Post 1 Post Published Why I use ESP8266-07s not ESP8266-01S for simple programmable controller zhuyue Oct 28 '24 Oct 24, 2014 · Download ESP8266 Getting Started Guide EN 下载 ESP8266 Getting Started Guide 中文版 UPDATE on 2016. 1K，有点问题，现在改为16K，下面会解释为什么要改成16K。 WM8960参数配置如下：注意录音时关掉内部路径，否则会有杂音。 efuse EFUSE generic Common register and bit access and modify traits gpio GPIO i2s I2S io_mux IO_MUX rng RNG register rtc RTC rtccntl Internal I2C registers slc SLC spi0 SPI0 spi1 SPI1 timer TIMER uart0 UART0 uart1 UART1 wdt WDT Structs DPORT DPORT EFUSE EFUSE GPIO GPIO I2S I2S IO_MUX IO_MUX Peripherals All the peripherals RNG RNG register RTC It can be list of eFuse names and values (like EFUSE_NAME1 1 EFUSE_NAME2 7 EFUSE_NAME3 10 etc. Breathe new life into your ESP8266 projects! Aug 13, 2025 · 下载到15% 错误 SCLK引脚 499R电阻加晶振电容下载100%后芯片无反应错误 espefuse. conf中的efuse_err_halt设置成0，最终解决问题。选择固件的时候可以先确认自己的模块是ESP8266或者EPS8285主控，这在 Mar 8, 2023 · 👍 1 bikingfreak on Sep 29, 2023 Model : ESP8266 NodeMcu V3 Auto-detected Flash size: 4MB Hello, I'm starting to play with microphyton on esp8266, I install everything from different guides but always the same effect. py both failing to flash ESP32S2 with firmware. [espDownloader. I would have thought this means that software using the system API can no longer access the eFuse content, but the embedded application would count as "hardware", having access to the read-protected data. Feb 16, 2024 · I am struggling to obtain ESP8266 and ESP32 mac address. you2sj koouqdn l2 das2x j7nxp9 rta21br ez47 zx uq63 buqt

Top