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HiLetgo

HiLetgo 3pcs ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Large)

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Availability: Only 1 left in stock, order soon!
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Arrives Jun 22 – Jun 27
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Size: Pack of 3


Features

  • Built-in Micro-USB, with flash and reset switches, easy to program
  • Arduino compatible, works great with the latest Arduino IDE/Mongoose IoT/Micropython
  • Data download access to the website: http://www;nodemcu;com

Description

Description: ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained networking solution, allowing it to either host the application or to offload from another application processor. Instruction & Steps of How to use: 1. Download the Arduino IDE, the latest version. 2. Install the IDE 3. Set up your Arduino IDE as: Go to File->Preferences and copy the URL below to get the ESP board manager extensions: arduino.esp8266.com/stable/package_esp8266com_index.json 4. Go to Tools > Board > Board Manager> Type "esp8266" and download the Community esp8266 and install. 5. Set up your chip as: Tools -> Board -> NodeMCU 1.0 (ESP-12E Module) Tools -> Flash Size -> 4M (3M SPIFFS) Tools -> CPU Frequency -> 80 Mhz Tools -> Upload Speed -> 921600 Tools-->Port--> (whatever it is) 6. Download and run the 32 bit flasher exe at Github(Search for nodemcu/nodemcu-flasher/tree/master/ at Github) github.com/nodemcu/nodemcu-flasher/tree/master/Win32/Release Or download and run the 64 bit flasher exe at: github.com/nodemcu/nodemcu- flasher/tree/master/Win64/Release 7. In Arduino IDE, look for the old fashioned Blink program. Load, compile and upload. 8. Go to FILE> EXAMPLES> ESP8266> BLINK, it will start blinking. Data download access to the website: Firmware link: Note: Please contact us if you need the driver or meet any issue when using. We provide 100% satisfication service for customers. Package included: 3 HiLetgo ESP8266 NodeMCU LUA CP2102 Development Module

Brand: HiLetgo


Model Name: NodeMCU LUA ESP8266 CP2102 ESP-12E


Memory Storage Capacity: 0.5 MB


CPU Model: MediaTek MT8125


CPU Speed: 80 MHz


Memory Storage Capacity: 0.5 MB


CPU Model: MediaTek MT8125


Processor Speed: 80 MHz


Connectivity Technology: Wi-Fi


Operating System: Minimalistic operating system or RTOS for microcontrollers


Processor Brand: Espressif


Wireless Compability: 802.11b


Compatible Devices: ESP8266


RAM Memory Technology: LPDDR3


Processor Count: 1


Total Usb Ports: 1


Brand: HiLetgo


Model Name: NodeMCU LUA ESP8266 CP2102 ESP-12E


Built-In Media: 3pcs HiLetgo ESP8266 NodeMCU CP2102 Development Module


Manufacturer: HiLetgo


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 22 – Jun 27

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.

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Top Amazon Reviews

    • perfect for WLED and LED projects
Size: Pack of 3
Used these for a WLED LED strip project in my room and they worked flawlessly right out of the box. Getting them on WiFi was super easy and the Arduino IDE setup was not bad at all even for someone who is not super deep into embedded stuff. You really cannot beat getting 3 boards for this price, it is a total no brainer for any DIY electronics project. ... show more
Reviewed in the United States on April 4, 2026 by Marc
    • A Dream for DIY LED Enthusiasts
Size: Pack of 3
I recently purchased the HiLetgo 3pcs ESP8266 NodeMCU CP2102 ESP-12E Development Boards for a custom LED project I had in mind. After spending some quality time with these boards, I'm thoroughly impressed and feel compelled to share my experience. First off, the ease of use is remarkable. As someone who appreciates the nuances of DIY electronics but isn't a seasoned expert, I found the setup process to be straightforward and user-friendly. The boards were compatible with my existing software setup, and I didn't encounter any significant hurdles during the initial programming phase. The real magic happened when I started using these boards for my custom LED setups. The ESP8266 NodeMCU's ability to effortlessly drive and control LEDs was a game-changer. Whether it was for basic lighting projects or more complex, multi-colored LED arrays, these boards performed flawlessly. The Wi-Fi capability is also a huge plus, offering the convenience of wireless control, which is perfect for smart home applications. I must also commend the stability and reliability of these boards. Throughout my projects, they maintained consistent performance without any significant glitches or overheating issues. This reliability is crucial when you're knee-deep in a project and need your components to perform without a hitch. In terms of value for money, this pack of three is an absolute steal. The quality and functionality you get for the price are unmatched, making these boards a must-have for anyone into DIY electronics, especially LED projects. To sum up, the HiLetgo ESP8266 NodeMCU Development Boards are a fantastic investment for anyone looking to delve into custom LED projects or general IoT applications. Their ease of use, reliability, and excellent value make them a standout choice. I highly recommend these to both novices and seasoned tinkerers alike! ... show more
Reviewed in the United States on November 26, 2023 by JoshWs Reivews
    • Goid value. Easy to use. Wifi capable
Size: Pack of 3
I used these for a WLED project. It worked perfectly and was really easy. The value is great, I can make inexpensive LED projects and control them from my phone. If you have issues connecting, make sure you connect to 2.4g wifi. You use a fraction of the memory for the project. The usb port is tight and not sloppy or loose. Great product! ... show more
Reviewed in the United States on April 26, 2025 by Marty Handford
    • Avoid WLED v0.14.1 and install v0.13.3 instead!
Size: Pack of 3
I used the web installer to instal WLED on my devices. At first I installed WLED v0.14.1 and the UI took forever to load or never loaded, it was hard to acquire wifi, and the devices would go often offline. I was ready to trash them. I then installed WLED v0.13.3, and voila! The devices now work perfectly (but I haven't connected any lights yet.) Lastly, everyone who had problems finding the right microUSB cable was right. I tried four cables before one worked. ... show more
Reviewed in the United States on February 6, 2024 by Robert
    • Great MCU, works with Arduino IOT but does not support OTA updates
Size: Pack of 3
Great board and are very economical. I purchased 9 of these boards for a freezer monitoring project at the local food bank. I have them all reporting to the IOT Cloud and they are working great. No major complaints, although I would like to have them OTA compatible.
Reviewed in the United States on January 16, 2025 by Jimbo11604
    • Great Value for an ESP8266 NodeMCU board
Size: Pack of 3
Once the drivers were installed - ran into a couple of glitches but essentially my second attempt at loading the drivers worked. Once past that - the rest was a breeze. I was able to build several prototypes to test out the functionality. Board is well made - can't see issues with the soldering or pins. HiLetGo is becoming my go to seller for Arduino related products. Most of the technical details are already listed in other reviews. One thing I found out (was unaware) - if you power the board via USB then the Vin pin provides 5V output for other sensors. Can't provide high current in my testing it easily tolerated a few milliamps. I used three boards to build #1. Web Server with sensors sending data to remote #2. Web Client with OLED SSD1315 display and #3. Energy Meter using an INA219 module reporting current and voltage. To use the SDA & SCL pins for serial communication for LCD or OLED displays for example, you need the following in your sketches: #include <Wire.h> #define I2C_SDA 4 /// ESP8266 NodeMCU SDA pin GPIO4 = D2 #define I2C_SCL 5 /// ESP8266 NodeMCU SCL pin GPIO5 = D1 // add in your setup section Wire.begin(I2C_SDA, I2C_SCL); /// Identify SDA & SLC pins for ESP8266 NodeMCU Some additional information for pin mapping from my notes. Hope it's helpful for others. D0 = GPIO16; Wake [connect RST to D0] D1 = GPIO5; SCL Serial Clock - D2 = GPIO4; SDA Serial Data - #include Wire.h & Wire.begin(SDA, SCL); D3 = GPIO0; Using 0 or D3 both accepted D4 = GPIO2; using 2 or D4 both accepted D5 = GPIO14; D6 = GPIO12; D7 = GPIO13; D8 = GPIO15; D9 = GPIO3; D10 = GPIO1; LED_BUILTIN = GPIO16 (auxiliary constant for the board LED, not a board pin); ... show more
Reviewed in the United States on September 30, 2023 by T.S.
    • ESP8266 WiFi Module Powers LED Project with Ease!
Size: Pack of 3
I recently used this module in a project to control LED lights, and I have to say, it worked incredibly well. One of the best things about the ESP8266 is its low price point. Despite being packed with features, including a built-in WiFi chip and support for the Arduino IDE, the module is incredibly affordable, making it a great choice for hobbyists and professionals on a budget. In my LED project, I used the ESP8266 to control the lights via a web interface. The module responded quickly and reliably to all of my commands, and I was able to create a simple web page that allowed me to turn the lights on and off, and adjust their brightness. Another great thing about the ESP8266 is its compact size. The module is small enough to fit in just about any project, making it incredibly versatile. Despite its small size and low price, the module is also quite powerful, with plenty of processing power and memory to handle a wide range of tasks. ... show more
Reviewed in the United States on February 20, 2023 by Eric Lamont
    • 5 volts input
Size: Pack of 3
FYI all... We have a system built that uses these and we found that 5 volts are required if you expect to run 3.3 volt devices off the device's 3v3 pin outputs. We have a camera and an LCD display connected, and with 3.v5 volts on the Vin and GND pins, we are only getting 2.5 volts on the output side. Camera and LCD would not power up, we increased input in Vin to 5 volts and everything works. The internal drop inherent to only supplying 3v3 to start seems like its too low. Other than that, these are great devices. Have ordered the 3 pack more than once. ... show more
Reviewed in the United States on March 8, 2021 by observatus

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