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FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
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Availability:
In Stock.
Arrives
Tuesday, Nov 10
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At a glance
- Condition
- New
- Model
- EL-SM-012
- Storage
- 4 MB
- Memory
- 520 KB
- Weight
- 0.05 kg
- CPU Speed
- 240 MHz
- Operating System
- Linux
- Warranty
- 1 Year Manufacturer
- Works with
- [GENERIC] Multiple devices with compatible connections
Features 5
- Dual-Core Performance Up to 240 MHz: Run sensor processing, wireless communication, automation logic and connected-device tasks on a 32-bit dual-core ESP32 platform designed for responsive embedded and IoT projects
- Built-in Wi-Fi and Bluetooth 4.2: Connect to 2.4 GHz Wi-Fi networks or use Bluetooth Classic and BLE for wireless sensors, smart devices, remote controls, home automation and other connected projects
- Flexible Power-Saving Modes: ESP32 power-management features support dynamic clock scaling and low-power operating modes, helping developers reduce energy use in compatible sensing, monitoring and connected-device applications, suitable for battery-powered Internet of Things (IoT) devices.
- USB-C Programming with CP2102: Connect through USB-C for power, sketch uploads and serial monitoring, while GPIO, UART, SPI and I2C interfaces support sensors, displays, motor drivers and other modules (USB-C cable not included)
- Over-the-Air Update Support: Configure OTA functionality through a compatible ESP-32 software framework to update deployed firmware over Wi-Fi without reconnecting the board by USB for every revision
Description
Build connected embedded projects with the ELEGOO 3-Pack ESP32 Development Board Set. Each board combines the classic ESP-WROOM-32 module, a USB-C connector and a CP2102 USB-to-serial interface. Features: Notice: Stable Wi-Fi & WLED Setup: Stronger Wi-Fi Connection Stable Power for WLED Check GPIO Before Adding Touch Controls * ESP32 GPIO functions vary by pin; refer to the board pinout for available and special-function pins ** Confirm the current production module flash capacity before publishing
Specs 22
| Brand | ELEGOO |
|---|---|
| Model Name | EL-SM-012 |
| Ram Memory Installed Size | 520 KB |
| Memory Storage Capacity | 4 MB |
| CPU Speed | 240 MHz |
| RAM Memory Installed | 520 KB |
| Processor Speed | 240 MHz |
| Connectivity Technology | Bluetooth, GPIO, I2C, USB, Wi-Fi |
| Operating System | Linux |
| Processor Brand | Espressif |
| Wireless Compability | 802.11bgn, Bluetooth |
| RAM Memory Technology | SRAM |
| Processor Count | 2 |
| Total Usb Ports | 1 |
| Built-In Media | Controller Boards |
| Number of Items | 3 |
| Unit Count | 3 Count |
| Item Highlight | Low-power IoT Applications, Smart Devices, Automation, Wireless Communication, GPIO Headers, Simplifying Development |
| Item Weight | 0.05 kg |
| Manufacturer | ELEGOO |
| Model Number | EL-SM-012 |
| Mfr Part Number | EL-SM-012 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Low-cost ESP32 with good WiFi
I got these boards to replace a frustrating (slightly cheaper) alternative to these boards I made the mistake of purchasing a few years ago for a DIY smart home project, and where those boards consistently had -80dBm signal strength in both locations I had them installed, these boards maintain -60dBm to -65dBm for the identical places they are in. So far, I've had no issues getting them to connect and maintain responsiveness. I did have a small issue with flashing them, I was unable to flash them with a USB-C to C cable and had to use a USB-A to C cable instead, but it's possible that's the fault of macOS or my environment so I won't dock the board for it. Overall these worked perfectly so far as a drop-in replacement in my environment, and I'm very happy with them.
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Reviewed in the United States on October 11, 2026 by Nick
Great ESP32 Module - very happy
First, the packaging was very nice. Well protected in a nice plastic case. Nice touch. Plugged it in and ESP-HOME instantly found it and programmed it without any issues. No boot issues or button presses needed. Claude made a very complicated custom yaml in about 5 seconds. Installed the yaml over the air without issue. Didn't come with a pinout, but text next to the pins is so clear I didn't need one. The new sketch runs perfectly, no issues. I'm very happy with it. btw - usb-c is a very welcome change.
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Reviewed in the United States on September 30, 2026 by Mark
They don’t fit on a breadboard, I didn’t ding them a star cause I like the size but just be aware
Cheap and work as intended. These are my go-to for basic ESP32 boards. Same price as the nanos which only have 4 GPIO’s broke out.
Reviewed in the United States on October 5, 2026 by Dan
Nice. Works great!
Good little boards. Easy to program. Will buy again.
Reviewed in the United States on August 27, 2026 by Silas Crowe
I'm happy with them.
These work just as they should, I have managed to replace Pi Zero and Pi Pico boards with them. They seems to be very well made.
Reviewed in the United States on September 28, 2026 by Pano
These things are fun!
These are amazing little boards. I made a scrolling sign that I could add or remove messages on my phone. Also made a clock that showed the weather and news headlines. Can't beat the price. If you have played with these boards get a few and have fun.
Reviewed in the United States on September 30, 2026 by Richard Johnson
A few quirks, but overall very good
It took a little bit get get started with this dev board, but I am mostly very pleased with it. I am using it as a replacement for an Arduino Nano ESP32. I do not know how it stands up to other ESP32 boards. Size: Comparatively, it is physically larger. It may not fit into the project I was hoping it would, but that's on me. The real issue with the size is that it does not fit on a standard solderless breadboard. It is too wide, and you can only use one column of pins on only one side. It is possible to remove the power rail from the edge of one breadboard and join two of them together for a bit more space, but that feels like a hack fix. Usability: I initially had trouble getting Arduino IDE to recognize my board. I could see my PC (Windows 10) was working on installing something the first time I plugged it in and got confirmation afterwards that the device was ready to use, but it still was not connecting in Arduino IDE. The fix was to install a CP210x driver, which instantly solved the problem. Compatibility: As stated, it works fine in Arduino IDE. You just need to download the esp32 board manager from espressif. I am using the ESP32-WROOM-DA Module board (I hope it is the right board, but it *does* work). Once I got it running, it was as easy as reassigning the pins to match the new board's output. It runs the code perfectly. I may even slightly increase the maximum speed of my LED matrix animations, but I'm not totally sure on that. Value: You get three boards for less than the cost of a single Arduino Nano ESP32. As far as I can tell, they are more or less equivalent in functionality and specs, making this set of three boards a great deal. Overall I like it quite a bit. I wish it were made more clear that this was specifically an ESP32 WROOM 32 board, meaning it has two cores, as opposed to a standard single core ESP32 board. Ultimately, it does not seem to make a difference in my use cases, and may possibly even be better. Both run at the same 240 MHz. The box it came in even says "ESP-WROOM-32" where the product image says "ESP-32", so I initially thought I got the wrong item. That, and the issues with the breadboard are why I give it 4 instead of 5 stars. Still, I am very much enjoying them so far and will purchasing more of these as needed.
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Reviewed in the United States on March 27, 2025 by Nathan
You have to move the current. In my case I had to connect 3v3 to first avaliable full row and so on.
I really like how easy the are to program and that they can communicate with each other with no internet access. Paired with my 26 tops accelerator it does whatever I need plus. One thing I've noticed is these are a lot bigger compared to my elegoo nanos or raspberry pi picos. These boys are chunky! They take up all but one slot on my breadboard so I had to re route connections to be able to add multiple sensors.
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Reviewed in the United States on August 29, 2026 by Reinrick Gashe