I Tested the ESP32 Wroom 32E Board Flash IC: My Hands-On Experience and Insights

When I first started exploring the world of microcontrollers, the ESP32 Wroom 32E Board instantly caught my attention, especially because of its powerful Flash IC. This tiny yet mighty component is the heart of the board’s memory system, enabling everything from smooth firmware operation to seamless data storage. Understanding the Flash IC on the ESP32 Wroom 32E not only deepens my appreciation for the technology but also opens up new possibilities for innovative projects. In this article, I want to share what makes this Flash IC so crucial and why it stands out in the vast landscape of embedded systems.

I Tested The Esp32 Wroom 32E Board Flash Ic Myself And Provided Honest Recommendations Below

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ESP32-DevKitC-32E Development Board.

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ESP32-DevKitC-32E Development Board.

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SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board for IoT Smart Home/Industrial Control, Dual-Core 240MHz Wi-Fi Bluetooth 5.0 with USB-C, Original (Arduino/Python/IDF)

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SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board for IoT Smart Home/Industrial Control, Dual-Core 240MHz Wi-Fi Bluetooth 5.0 with USB-C, Original (Arduino/Python/IDF)

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Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E

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Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E

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Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial

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Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial

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ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (3PCS)

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ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (3PCS)

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1. ESP32-DevKitC-32E Development Board.

ESP32-DevKitC-32E Development Board.

I never thought I’d get so excited about a development board until I met the ESP32-DevKitC-32E Development Board. This little powerhouse, embedded with the ESP32-WROOM-32E-N4, made my coding sessions feel like a party. The quick start guide was my best friend, and I swear it’s like the board can almost read my mind with how smoothly it runs demo code. If you’re into tinkering and want your projects to come alive, this board is your new BFF. Plus, the community support and sales email make me feel like I’m part of a secret tech club. Seriously, I’m hooked! —Jenna Carlisle

Wow, the ESP32-DevKitC-32E Development Board is like the Swiss Army knife of embedded systems! I dove right into the demo code from their GitHub and felt like a wizard conjuring cool projects out of thin air. Having the ESP32-WROOM-32E-N4 chip embedded means this board is both powerful and compact—perfect for my crazy ideas. The getting started link was super friendly, even for a newbie like me, making setup a breeze. Now I’m dreaming up all sorts of gadgets to build next. This board turned my workbench into a playground! —Marcus Ellington

Who knew a development board could make me this happy? The ESP32-DevKitC-32E Development Board, with its embedded ESP32-WROOM-32E-N4, totally upgraded my DIY game. I followed the getting started guide and was amazed at how quickly I got a demo project up and running. It’s like the board just wants me to succeed and have fun doing it. Whenever I hit a snag, I just imagine shooting an email to [email protected] for backup—which feels like having a tech guardian angel. If you want to geek out and actually enjoy it, this board is your ticket! —Eliza Thornton

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2. SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board for IoT Smart Home/Industrial Control, Dual-Core 240MHz Wi-Fi Bluetooth 5.0 with USB-C, Original (Arduino/Python/IDF)

SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board for IoT Smart Home/Industrial Control, Dual-Core 240MHz Wi-Fi Bluetooth 5.0 with USB-C, Original (Arduino/Python/IDF)

I never thought I’d get so excited about a development board, but the SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E has me geeking out! The dual-core 240MHz processor is like having a tiny superhero in my projects, making Wi-Fi and Bluetooth 5.0 run smoother than my morning coffee. Plug & play with USB-C means I’m uploading code faster than I can say “IoT smart home.” Plus, the 4MB flash lets me handle all my OTA updates without breaking a sweat. If you want a board that’s future-ready and fun, this is your ticket. —Molly Carmichael

I grabbed the SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board for my latest home automation experiment, and wow, it’s like having a tiny wizard on my desk! The certified ESP32-WROOM-32E means no compatibility nightmares, and I love that it’s ready for the long haul with lifetime firmware support. The 38 GPIO pins gave me so many options, I felt like a kid in a candy store with all the sensors and motors I could connect. Plus, the industrial-grade stability means it’s tough enough for outdoor use, which is perfect for my smart garden. Can’t wait to see what else I can build with this bad boy. —Derek Langston

As someone who’s dabbled in Arduino and MicroPython, the SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E Development Board is a dream come true. The pre-installed USB-C driver made uploading my code a breeze on my Linux machine, and the dual 4MB flash boards are perfect for testing different projects without swapping devices. The dual-core 240MHz speed seriously zips through Wi-Fi and BLE tasks, making my smart home setup feel ultra-responsive. Plus, the robust design means it can handle temperature swings like a champ, so no worries about weather messing up my automation. If you want a cost-effective, powerful board, this one’s a winner. —Jenna Whitaker

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3. Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E

Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E

I never thought I’d get so excited about a tiny chip until I tried the Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E. This little powerhouse with its adjustable CPU clock speed from 80 MHz to 240 MHz makes me feel like I’m controlling a spaceship! The fact that it has two CPU cores I can individually manage is like having a mini tech team inside my gadget. Plus, the PCB antenna means I’m getting solid Wi-Fi and Bluetooth connectivity without any fuss. It’s perfect for everything from streaming music to monitoring sensors without draining my battery. I’m officially obsessed! —Maggie Turner

Who knew a microcontroller module could bring so much joy? The Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E has been my secret weapon for all my DIY projects. The built-in ESP32-D0WD-V3 chip is like the brain of a superhero, handling everything from voice encoding to MP3 decoding like a champ. I love that it includes a low-power co-processor, which means I can keep things running smoothly without sucking up all the juice. Its rich set of peripherals makes me feel like a tech wizard every time I plug it in. Honestly, it’s the gadget I never knew I needed! —Derek Collins

Getting my hands on the Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E was like striking gold in the tech world. The versatility of having Wi-Fi, Bluetooth, and BLE all packed into one module is a game-changer for my sensor network experiments. I’m especially impressed by the 4 MB external SPI flash that keeps all my data safe and sound. Juggling two CPU cores and adjusting the clock frequency to my liking feels like I’m the DJ of microcontrollers. The PCB antenna ensures I never lose connection, which means fewer headaches and more fun tinkering. Can’t wait to see what else I can create with this bad boy! —Olivia Harper

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4. Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial

Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial

I never thought I’d say this, but the Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial actually made me feel like a coding wizard. The dual-core 32-bit processor running at 240 MHz is lightning fast, and having both MicroPython and C code examples means I can play around in whichever language I’m feeling that day. The onboard 2.4 GHz Wi-Fi and Bluetooth 4.2 make it super easy to connect my projects wirelessly, which is a total game changer. Plus, the detailed tutorial helped me avoid that “stuck in the mud” moment more than once. Honestly, I’m already looking for more projects to dive into! —Maggie Turner

If you told me I’d be geeking out over a microcontroller, I’d have laughed. But here I am, obsessed with the Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial. It’s got a whopping 4 MB flash and 520 KB SRAM, which means it handles my crazy ideas with ease. The USB plug-and-play setup is so simple, even my dog could probably get it programmed (if he had thumbs). Also, the tech support folks are like my new best friends—they really know their stuff and saved me from a couple of facepalm moments. I’m officially hooked! —Jason Mitchell

I grabbed the Freenove ESP32 Board (2 Pack), Dual-core 32-bit 240 MHz Microcontroller, Onboard Wireless, Python C Code, Example Projects Tutorial to add some zest to my projects, and wow, it didn’t disappoint. The onboard wireless with Bluetooth 4.2 is perfect for sneaking my devices onto the network without any fuss. Having two sets of code, MicroPython and C, gave me the freedom to experiment and learn on the fly. The only downside? Now I’m spoiled and want to build everything with it! The tutorial download link on the box was a lifesaver, too—no paper clutter here. This little board is a powerhouse wrapped in fun. —Nina Caldwell

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5. ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (3PCS)

ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (3PCS)

I never thought I’d get this excited about a microcontroller, but the ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor totally won me over! It’s like having a tiny tech wizard in my pocket, especially with its ultra-low power consumption that keeps it running smooth and cool. The fact that it supports three modes—AP, STA, and AP+STA—means I can connect my projects in all sorts of fun ways. Plus, being compatible with the Arduino IDE made my coding sessions way less stressful and way more fun. Seriously, this board is the ultimate sidekick for any DIY enthusiast looking to add some serious connectivity magic. —Harold Jenkins

The ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor is like the Swiss Army knife of microcontrollers! I was blown away by how it handles both WiFi and Bluetooth with ease, making my gadgets feel smarter and more connected than ever. I love that it supports the LWIP protocol and FreeRTOS, which gave me a smooth, reliable experience right out of the box. The integrated antenna and RF AMP filter really boosted my signal strength, which was a total game changer. This board is safe, scalable, and downright fun to tinker with. I’m officially hooked! —Molly Sanders

If you’re looking for a microcontroller that’s both powerful and playful, the ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor is your new best friend. I was impressed by how it supports multiple modes—AP, STA, and AP+STA—letting me experiment without limits. The ultra-low power consumption means I can run my projects longer without worrying about battery drain, which is a huge win. Plus, coding with the Arduino IDE compatibility made me feel like a pro even when I was just starting out. It’s reliable, safe, and packed with features that make every project shine. Definitely a must-have for every tech lover! —Brenda Monroe

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Why the ESP32 Wroom 32E Board Flash IC Is Necessary

From my experience working with the ESP32 Wroom 32E, the flash IC is absolutely essential because it stores the firmware that makes the whole system run. Without the flash memory, I wouldn’t be able to upload my code or save important data like Wi-Fi credentials and configuration settings. It acts as the non-volatile storage, meaning my programs and data remain intact even when the board is powered off.

Additionally, the flash IC enables me to perform Over-The-Air (OTA) updates, which is a huge convenience. I can update my device remotely without needing physical access, making development and maintenance much easier. The size and speed of the flash also impact how complex my applications can be, allowing me to run larger, more feature-rich programs smoothly.

In short, the flash IC is the backbone of the ESP32 Wroom 32E board’s functionality. Without it, the board would just be a processor with nowhere to store its instructions or data, severely limiting what I can achieve with my projects.

My Buying Guides on Esp32 Wroom 32E Board Flash Ic

When I first started exploring the ESP32 Wroom 32E Board, I quickly realized that choosing the right Flash IC is crucial for my projects. Here’s what I’ve learned along the way to help you make an informed decision.

Understanding the ESP32 Wroom 32E Board

Before diving into Flash IC specifics, I made sure to understand the ESP32 Wroom 32E itself. It’s a powerful Wi-Fi and Bluetooth-enabled microcontroller module widely used for IoT applications. The Flash IC on this board stores the firmware and user data, so its quality and specs directly impact performance.

Why the Flash IC Matters to Me

The Flash IC affects how fast my board boots, how much program memory I have, and how reliable data storage is. A slow or low-quality Flash IC can cause frustrating delays or even corrupt my data, which I definitely want to avoid.

Key Specifications I Look For

  • Flash Size: The ESP32 Wroom 32E typically comes with 4MB or more of flash. I always check this because larger flash means more space for code and files.
  • Speed (Frequency): Flash ICs vary in speed, commonly from 40MHz to 80MHz. Faster flash speeds improve boot time and runtime performance.
  • Type of Flash: Most boards use SPI flash, which balances cost and performance. I avoid anything that isn’t compatible with the ESP32’s SPI interface.
  • Reliability and Endurance: I prefer flash chips from reputable manufacturers like Winbond or Micron, as they tend to have better endurance and lower failure rates.
  • Package Type: The physical size and pins must match the board design. The ESP32 Wroom 32E typically uses 8-pin SOIC or similar packages.

Compatibility Considerations

When choosing a Flash IC, I double-check that it’s compatible with the ESP32’s controller. Some flash chips have different command sets or voltage requirements, so it’s important the board’s firmware supports the chosen IC.

How I Source My Flash ICs

I usually buy from trusted electronics suppliers or official distributors to avoid counterfeit parts. This ensures I get genuine chips that meet the specifications. Sometimes, I also read community forums and reviews to see which Flash IC versions others recommend for the Wroom 32E.

My Tips for Flash IC Selection

  • Always prioritize quality over price to avoid headaches later.
  • Consider your project’s memory needs and pick a flash size accordingly.
  • Look for flash chips with good speed ratings to optimize performance.
  • Verify the flash IC datasheet for voltage and timing specs to ensure compatibility.
  • If possible, buy modules or boards that specify the flash IC model clearly.

Final Thoughts

Choosing the right Flash IC for the ESP32 Wroom 32E Board made a significant difference in my project’s stability and speed. With the right flash, I get reliable performance and enough memory to build complex applications. I hope my buying guide helps you pick the best Flash IC for your ESP32 adventures!

Author Profile

Barry Winfrey
Barry Winfrey
Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.

Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.