---
product_id: 256334315
title: "HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS)"
brand: "hiletgo"
price: "3414 som"
currency: KGS
in_stock: true
reviews_count: 5
category: "Hi Letgo"
url: https://www.desertcart.kg/products/256334315-hiletgo-2pcs-esp8266-nodemcu-lua-cp2102-esp-12e-internet-wifi
store_origin: KG
region: Kyrgyzstan
---

# High-speed 80 MHz CPU frequency Integrated WiFi ESP8266 chip Built-in Micro-USB for easy programming HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS)

**Brand:** hiletgo
**Price:** 3414 som
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock your IoT potential with the ultimate WiFi dev duo!

## Quick Answers

- **What is this?** HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS) by hiletgo
- **How much does it cost?** 3414 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/256334315-hiletgo-2pcs-esp8266-nodemcu-lua-cp2102-esp-12e-internet-wifi)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Pack Power:** Two development boards in one pack—double your innovation potential without doubling the cost.
- • **User-Friendly Design:** Flash and reset switches plus Micro-USB port make programming and debugging effortless.
- • **All-in-One Connectivity:** Built-in WiFi module with ESP-12E ensures robust wireless networking for IoT projects.
- • **Open Source & Community-Driven:** Access extensive online resources and community support to accelerate your project success.
- • **Seamless Arduino IDE Compatibility:** Plug & play with the latest Arduino IDE for rapid prototyping and coding freedom.

## Overview

The HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Development Boards are compact, high-performance WiFi modules designed for seamless integration with Arduino IDE and MicroPython. Featuring built-in Micro-USB ports, flash/reset switches, and an 80 MHz CPU, these open-source boards empower developers to build connected projects quickly and efficiently. Ideal for professionals and makers aiming to lead in IoT innovation.

## Description

Product 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 all networking functions 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: http://arduino.esp8266.com/stable/package_esp8266com_index.json Placing the http:// before the URL lets the Arduino IDE use it...otherwise it gives you a protocol error. 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. Note: Please contact us if you need the driver or meet any issue when using. We provide 100% satisfication service for customers. Package included: 2* HiLetgo ESP8266 NodeMCU CP2102 Development Board

Review: Complete project description follows. I'm using the NodeMCU as a web server and it works great. It was a struggle to find example code that actually connects outside my local area network but I found some. Also had to learn the rudiments of HTML. Only issue is it seems to need to be restarted every 4 or 5 days. Since I'm going to leave it in a remote location I'll put some code in the MEGA that sits right next to it to restart the NodeMCU every couple days, by pulling the RST pin low. Green Pond Bridge Boat Clearance At ‘very low tide’ the clearance under Green Pond Bridge in Cape Cod is 6’6” or less and that is too low for the boat I use. The tide charts for Falmouth, MA are theoretical and can vary as much as 18” from what is actually happening at the bridge. This system monitors the clearance and transmits the information on the internet. All of these parts were purchased from desertcart. Transmitter An (Arduino) Elegoo UNO R3 board is connected to an Elegoo HC-SR04 Ultrasonic Distance Sensor. The UNO and the sensor calculate the distance from a fixed dock to the sea level, then transmit that data using a MakerFocus NRF24L01 Wireless Transceiver to the Receiver described below. The Transmitter sits on the end of a dock where there is no power, so the UNO, Transceiver and Distance Sensor are powered by the energyShield 2. This battery has special capabilities – it wakes everything up every 15 minutes. The system takes a couple readings of the distance to the water then transmits that data, then the battery shuts it all off. The data transmitted includes information from the battery – time, date, and voltage. I have been testing this unit at home (in Dallas) and it has been operating outside, for about 20 days. Based on battery drain it looks like it will operate for about 4-5 months before it needs a recharge. When the temperature drops below zero the system still works fine but the voltage reported in the battery seems low. All of this is housed in a plastic box printed for the purpose with a FlashForge 3d Printer Creator Pro, using eSun White ABS+ filament Picture below. Receiver An (Arduino) Elegoo MEGA 2560 R3 is connected to another NRF24 Transceiver to receive the data. The MEGA does the math to convert the distance from the dock to the water, to the bridge clearance. Then the information is displayed on an Elegoo UNO R3 Touch Screen (that also works fine on the Mega). Picture below. A small plastic frame for the Receiver was also printed on the 3d printer Web Server Finally, the information in the MEGA is transmitted over a serial bus to a Hiletgo ESP8266 NodeMCU ESP-12E Internet WIFI Development Board (Also operates using Arduino IDE programming). This board is connected to the MEGA via the XCSOURCE Logic Level Converter and powered by a UCEC MB102 Breadboard Power Supply Module. All mounted on an Elegoo Breadboard. The ESP8266 is programmed to be a web server. It connects to the internet through the modem/router provided by AT&T. Picture of my cell phone below.
Review: Best performance n price too

## Features

- ESP8266 CP2102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B010N1SPRK |
| Item model number | 3-01-0268 |
| Manufacturer | HiLetgo |
| Product Dimensions | 12.7 x 9.5 x 1.3 cm; 40.82 g |

## Product Details

- **Brand:** HiLetgo
- **CPU speed:** 8E+1 MHz
- **Installed RAM memory size:** 1 MB
- **Memory storage capacity:** 1000000 Bytes
- **Model name:** ESP-12E

## Images

![HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS) - Image 1](https://m.media-amazon.com/images/I/61n2aVCqK4L.jpg)

## Questions & Answers

**Q: how do i get it working on osx**
A: Since I had a bit of trouble figuring this out as most of the info I found is for Windows, here are the steps to get this working with the Arduino IDE on a Mac:

1. Download the Mac VCP drivers at https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers
2. Install the drivers, and make sure you authorize any security prompts that appear while installing
3. (On recent macOS releases) Open System Preferences > Security & Privacy > General. You’ll see a message about the Silabs driver being blocked at the bottom. Click “Allow”
4. Download and install the Arduino IDE
5. Open Arduino Preferences and paste the URL below in Additional Board Manager URLs: http://arduino.esp8266.com/stable/package_esp8266com_index.json
6. Go to Tools > Board > Board Manager> Type “esp8266” and download the Community esp8266 and install
7. 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 > /dev/cu.SLAB_USBtoUART
(leave the rest as-is)
8. Open File > Examples > ESP8266 > Blink
9. Compile and Upload. After it's done uploading, the red led should start blinking in your board.

**Q: How many output amps can this handle?**
A: The AMS1117-3.3 chip (3.3v regulator) looks like it has a maximum load of 1.5A. So that minus whatever the ESP itself draws. To be on the safe side, I'd limit the current draw off the 3.3v supply to around 500mA.

**Q: Is there a built-in micro sd card? (description says it does, but the two units i received don't seem to have a slot for inserting an sd card).**
A: I think you might be reading the description wrong.  It does say "Built-in Micro-USB" and that is not the same as micro sd.  I have not seen a description stating it supports a micro sd.

**Q: What firmware or program is already onboard? when i connect at 115200 baud it shows the nearby ssids, but i don't know how to send commands.**
A: If you only see nearby SSIDs, it means that your board has the "WiFiScan.ino" load on the board.
You can see the source here - https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/examples/WiFiScan/WiFiScan.ino
"AT" commands won't do you any good since it is not loaded.

There are a couple of instruction you can read here - https://github.com/esp8266

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by F***. on 19 January 2018*

Complete project description follows. I'm using the NodeMCU as a web server and it works great. It was a struggle to find example code that actually connects outside my local area network but I found some. Also had to learn the rudiments of HTML. Only issue is it seems to need to be restarted every 4 or 5 days. Since I'm going to leave it in a remote location I'll put some code in the MEGA that sits right next to it to restart the NodeMCU every couple days, by pulling the RST pin low. Green Pond Bridge Boat Clearance At ‘very low tide’ the clearance under Green Pond Bridge in Cape Cod is 6’6” or less and that is too low for the boat I use. The tide charts for Falmouth, MA are theoretical and can vary as much as 18” from what is actually happening at the bridge. This system monitors the clearance and transmits the information on the internet. All of these parts were purchased from Amazon. Transmitter An (Arduino) Elegoo UNO R3 board is connected to an Elegoo HC-SR04 Ultrasonic Distance Sensor. The UNO and the sensor calculate the distance from a fixed dock to the sea level, then transmit that data using a MakerFocus NRF24L01 Wireless Transceiver to the Receiver described below. The Transmitter sits on the end of a dock where there is no power, so the UNO, Transceiver and Distance Sensor are powered by the energyShield 2. This battery has special capabilities – it wakes everything up every 15 minutes. The system takes a couple readings of the distance to the water then transmits that data, then the battery shuts it all off. The data transmitted includes information from the battery – time, date, and voltage. I have been testing this unit at home (in Dallas) and it has been operating outside, for about 20 days. Based on battery drain it looks like it will operate for about 4-5 months before it needs a recharge. When the temperature drops below zero the system still works fine but the voltage reported in the battery seems low. All of this is housed in a plastic box printed for the purpose with a FlashForge 3d Printer Creator Pro, using eSun White ABS+ filament Picture below. Receiver An (Arduino) Elegoo MEGA 2560 R3 is connected to another NRF24 Transceiver to receive the data. The MEGA does the math to convert the distance from the dock to the water, to the bridge clearance. Then the information is displayed on an Elegoo UNO R3 Touch Screen (that also works fine on the Mega). Picture below. A small plastic frame for the Receiver was also printed on the 3d printer Web Server Finally, the information in the MEGA is transmitted over a serial bus to a Hiletgo ESP8266 NodeMCU ESP-12E Internet WIFI Development Board (Also operates using Arduino IDE programming). This board is connected to the MEGA via the XCSOURCE Logic Level Converter and powered by a UCEC MB102 Breadboard Power Supply Module. All mounted on an Elegoo Breadboard. The ESP8266 is programmed to be a web server. It connects to the internet through the modem/router provided by AT&T. Picture of my cell phone below.

### ⭐⭐⭐⭐⭐ Review
*by M***M on 4 October 2019*

Best performance n price too

### ⭐⭐⭐⭐⭐ Review
*by B***E on 9 September 2019*

Ho acquistato il microcontroller per costruire una semplice stazione meteo casalinga abbinandolo a un display da 2.8” e a un sensore BME280 sempre HiLetgo. Il tutto è arrivato in 2-3 giorni grazie al fatto che viene spedito da Amazon (ordinando da altri siti concorrenziali avrei risparmiato pochi centesimi ma avrei dovuto aspettare più di un mese perché spediti dalla Cina). Il modulo arriva confezionato con il classico sacchetto antistatico e con le strisce dei contatti già saldate (comodo per iniziare ad usare il dispositivo fin da subito). Per evitare che i piedini vengano piegati durante il trasporto sono protetti da un rettangolo di polietilene. Lo stampato e le saldature risultano di buona fattura. Il modulo e dotato di memoria flash da 4MB. Per utilizzare questi moduli con l’IDE Arduino bisogna prima configurare l’ambiente di sviluppo, operazione che si completa in pochi istanti grazie alle guide presenti in rete o sul sito del produttore hiletgo.com. Tutto funziona alla perfezione e senza nessun problema. Prodotto decisamente interessante ed economico.

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-07*