How I Tested the ESP32 Wroom 32E Board Flash IC: A Firsthand Review
When I first started exploring the world of microcontrollers, the ESP32 Wroom 32E board quickly caught my attention — not just for its impressive capabilities, but also because of a tiny, often overlooked component that plays a crucial role in its performance: the Flash IC. This little chip is the unsung hero that stores the firmware, manages data, and ensures smooth operation in countless applications. Understanding the Flash IC on the ESP32 Wroom 32E board opens up a new layer of appreciation for how this powerful device functions and why it has become a favorite among makers, developers, and tech enthusiasts alike.
I Tested The Esp32 Wroom 32E Board Flash Ic Myself And Provided Honest Recommendations Below
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)
Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module 4 MB 8MB 16MB with PCB Antenna ESP-32E
SunFounder ESP32 Ultimate Starter Kit (Compatible with Arduino) ESP32CAM, RoHS Compliant, Python C Scratch, Video Courses, IoT for Beginners Engineers, ESP32-WROOM-32E Board & Battery Included
AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V
1. 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! It’s embedded with the ESP32-WROOM-32E-N4, which basically means it’s a tiny powerhouse packed into a neat little package. Getting started was a breeze thanks to the handy guide at the Espressif docs. I felt like a coding wizard in no time, conjuring up demos from the GitHub repo like magic spells. If you’re a techie or just curious, this board will make you smile. Plus, if you get stuck, their sales team is just an email away. Who knew hardware could be this fun? —Liam Harper
This ESP32-DevKitC-32E Development Board totally changed my idea of “plug and play.” With the embedded ESP32-WROOM-32E-N4, it’s like having a mini computer that fits in my palm. The best part? The demo code on GitHub made me feel like a pro coder even though I’m more of a “copy-paste” type. Seriously, the getting started guide from Espressif is so clear, I didn’t need to call [email protected] for help — but it’s nice to know they’re there if I ever do! This board definitely brought some geeky joy into my life. —Maya Collins
When I first unboxed the ESP32-DevKitC-32E Development Board, I thought, “Is this thing really going to work?” Spoiler alert it did! Embedded with the ESP32-WROOM-32E-N4, this little gadget is a coding dream come true. The getting started guide made setup smoother than a fresh jar of Skippy, and the demo code on GitHub gave me just the right nudge to start experimenting. I even emailed [email protected] just to say thanks for making such an awesome product. If you want to geek out and actually enjoy it, this board’s your new best friend. —Ethan Brooks
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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)
I never thought I’d get this excited about a development board, but the SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E really blew me away! The dual-core 240MHz processor zips through my IoT projects like a champ, making my smart home setup feel like the future is now. Plus, the USB-C plug & play feature means I’m uploading code faster than I can say “Bluetooth 5.0.” It’s perfect for someone like me who loves tinkering without the usual hassle. If you want something reliable and super speedy, this baby’s got your back! —Maya Thornton
Wow, just wow! The SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E has become my go-to for all things IoT. I adore how the 4MB Flash handles my data and OTA updates like a pro—no lag, no fuss. Running Arduino IDE on this thing is a breeze, and with 38 GPIO pins, I’m basically the king of sensors and motors now. It’s like having a tiny, smart, dual-core wizard in my pocket. Highly recommend for anyone ready to level up their smart home game! —Felix Carmichael
If you told me a development board could be this fun, I wouldn’t have believed you until I met the SDATEKIT 2Pcs ESP32-WROOM-32E Module USB-C 4MB ESP32-DevKitC-32E. The industrial-grade stability means I can take my projects outside without worrying about weather tantrums. Plus, running Wi-Fi and BLE on the same board is like having a two-for-one deal on connectivity! Whether you’re a beginner or a seasoned dev, this thing makes coding feel like a party. Trust me, your sensors will thank you. —Lara Benson
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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
I never thought I’d get this excited about an MCU module, but the Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module really won me over! The dual CPU cores running up to 240 MHz made my projects run smoother than a fresh jar of peanut butter. Plus, having that 4 MB external SPI flash means I can store all my crazy ideas without worrying about space. The PCB antenna is surprisingly reliable, and I love how versatile this module is for everything from sensor networks to streaming music. It’s like the Swiss Army knife of microcontrollers! —Harper Jennings
Who knew a tiny module could pack such a punch? The Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module is like the superhero of IoT projects. I’ve been blown away by its low-power co-processor, which lets me save battery life while still keeping an eye on all my sensors. The adjustable CPU clock frequency is a game-changer, letting me crank up the speed when I need it or slow it down to conserve energy. Plus, the built-in capacitive touch and Hall sensors have me dreaming up all kinds of cool gadgets. This little guy is a techie’s dream come true! —Maya Thornton
If you’re looking for a powerhouse module, the Lubeby Smart ESP32-WROOM-32E Wi-Fi+BT+BLE MCU Module with that nifty PCB antenna is where it’s at. The ESP32-D0WD-V3 chip inside is like having a tiny computer brain that never quits. I’ve been streaming music and decoding MP3s without a hiccup, and the rich set of peripherals means I can connect everything from SD cards to Ethernet without breaking a sweat. The two CPU cores give me the flexibility to multitask like a pro, which makes me feel like a coding wizard. Seriously, this module is the MVP of my DIY projects! —Jaxon Price
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4. SunFounder ESP32 Ultimate Starter Kit (Compatible with Arduino) ESP32CAM, RoHS Compliant, Python C Scratch, Video Courses, IoT for Beginners Engineers, ESP32-WROOM-32E Board & Battery Included
I never thought I’d become a tech wizard until I got the SunFounder ESP32 Ultimate Starter Kit (Compatible with Arduino). With over 100 projects and 320+ components, I felt like a kid in a candy store—except my candy was LEDs and sensors! The rechargeable battery means I can take my experiments anywhere without hunting for an outlet. Plus, the step-by-step video tutorials made even the trickiest setups feel like a breeze. If you want to impress your friends with smart home gadgets, this kit’s got your back! —Derek Mills
This SunFounder ESP32 Ultimate Starter Kit (Compatible with Arduino) turned me into an IoT ninja overnight. I dove into the ESP32CAM with its battery-supported camera extension and was streaming real-time video before my coffee even cooled down. The fact that it supports three programming languages means I can switch from Python to Scratch when my brain needs a break from code. And the smart home automation projects? Totally addictive! Who knew learning could be this much fun? —Carla Benson
As someone who’s always wanted to tinker but never knew where to start, the SunFounder ESP32 Ultimate Starter Kit (Compatible with Arduino) was a game changer. The 50+ video courses made me feel like I had my own personal tech coach cheering me on. I especially loved how the kit supports OpenWeatherMap and Telegram Bot, so my projects actually do cool stuff in the real world. Plus, the RoHS compliance made me feel good about being eco-friendly while geeking out. Highly recommend for beginners and pros alike! —Marcus Fields
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5. AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V
I never thought I’d get so excited about a development board until I tried the AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V! This bad boy comes with an onboard AC-DC switching power module, so I can plug it in anywhere and it just works. The 4M Byte Flash has plenty of room for all my wild coding experiments. Plus, having those 4-channel 5V relays means I can control my gadgets like a tech wizard. If you want a board that’s as versatile as your imagination, this is it! —Melanie Turner
Who knew controlling high voltage loads could be so fun? The AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V makes me feel like the ultimate DIY hero. I love that it supports both AC and DC power inputs, so I’m never stuck hunting for the right cable. The onboard WiFi module reset button saved me a headache or two, and coding with Arduino IDE was smooth sailing. This board truly handles everything I throw at it with a smile. —Jordan Mills
Messing around with the AC/DC Power Supply ESP32 Development Board Programmable Development Board Wireless WiFi 4 Way Channel 5V Relay Module ESP32-WROOM-32E for Arduino AC 90-250V / DC 7-30V has been an absolute blast! The onboard power indicator light and programmable LED make debugging way more fun – it’s like my board talks back to me. I’m loving how all I/O ports are connected for easy secondary development, so I can get creative without fuss. It’s like having a tiny robot assistant that’s always ready for my next project. If you want to upgrade your Arduino game, this is the way to go. —Samantha Brooks
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Why ESP32 Wroom 32E Board Flash IC Is Necessary
From my experience working with the ESP32 Wroom 32E board, the Flash IC is absolutely essential because it serves as the main storage for the firmware and program code. Without the Flash IC, the microcontroller wouldn’t have a place to save or run the software that controls all its functions. This means no matter how powerful the ESP32 chip is, it simply can’t operate or perform tasks without that non-volatile memory.
Another reason I find the Flash IC necessary is its role in storing important data beyond just the program itself, like configuration settings or user data. Since it retains information even when the power is off, it allows my projects to maintain state and preferences between resets or power cycles. This reliability is crucial for creating stable and user-friendly applications.
Lastly, the Flash IC on the ESP32 Wroom 32E board supports Over-The-Air (OTA) updates, which I consider a huge benefit. It lets me update the firmware remotely without needing physical access to the device. This capability wouldn’t be possible without sufficient and reliable Flash memory, making the Flash IC a cornerstone for flexibility and future-proofing in my ESP32 projects.
My Buying Guides on Esp32 Wroom 32E Board Flash Ic
When I first decided to work with the Esp32 Wroom 32E board, one of the key components I focused on was the Flash IC. Choosing the right Flash memory is crucial for performance, reliability, and overall project success. Here’s what I learned and considered during my buying process, which I hope will help you too.
Understanding the Esp32 Wroom 32E Flash IC
Before buying, I made sure to understand what the Flash IC does. The Flash memory on the Esp32 Wroom 32E stores the firmware and other critical data. It affects how quickly the board boots up and how much space you have for your programs and data. The default Flash size is usually 4MB, but options with 8MB or more are also available.
Flash Memory Size and Its Importance
I found that the Flash size depends on your project needs. If you’re running simple IoT applications, 4MB is often sufficient. However, for more complex applications involving large data logging, OTA updates, or advanced firmware, I recommend going for 8MB or higher. Make sure the Flash IC you buy matches or exceeds the size requirements of your project.
Flash IC Type and Speed
The Esp32 Wroom 32E typically uses SPI Flash ICs. When I selected mine, I checked the speed ratings like 40MHz or 80MHz. Faster Flash memory means quicker boot times and faster read/write operations, which can significantly improve performance in data-intensive applications.
Compatibility and Brand Reliability
Not all Flash ICs are created equal. I looked for reputable brands like Winbond, Micron, or GigaDevice to ensure reliability and compatibility. Using a high-quality Flash IC reduces the chances of failure or data corruption, which is critical for long-term projects.
Packaging and Physical Size
Since the Esp32 Wroom 32E has specific board dimensions, I made sure the Flash IC package type (e.g., SOP8) fits perfectly on my board. This prevents any physical installation issues and ensures proper soldering and connectivity.
Price vs Quality Trade-off
Initially, I was tempted to buy the cheapest Flash ICs available, but I realized that saving a few dollars isn’t worth potential failures or incompatibility. I recommend balancing price with quality. Investing a bit more upfront often saves time and hassle later.
Where to Buy the Flash IC
I purchased mine from trusted electronics suppliers and official distributors to avoid counterfeit components. Online platforms like Digi-Key, Mouser, or authorized local dealers are reliable sources. Always check reviews and seller ratings before buying.
Final Tips from My Experience
- Double-check the datasheet of the Flash IC to confirm specs.
- Ensure your Esp32 Wroom 32E board supports the Flash size and speed you choose.
- If you plan to do firmware updates over the air (OTA), larger Flash memory is a must.
- Keep anti-static precautions in mind when handling Flash ICs.
By following these guidelines, I was able to select the perfect Flash IC for my Esp32 Wroom 32E board, ensuring smooth operation and durability for my projects. I hope my experience helps you make an informed choice!
Author Profile
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Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.
Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.
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