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Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module

Name: Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module : Amazon.in: Computers & Accessories
Price: 411 INR
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Rating: 4.2 (2841 reviews)

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Purchase options and add-ons

Brand	eleduino
Model Name	Node MCU
Memory Storage Capacity	4 MB
CPU Speed	8.5 GHz
Connectivity Technology	Wi-Fi

About this item

Built-in micro-usb, with flash and reset switches, easy to program
Weight: 8.5 gms

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This item: Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module

₹411.00

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Technical Details

Brand	‎eleduino
Manufacturer	‎Sound Land Corp
Country of Origin	‎India
Model number	‎3-01-0268-1
Number of Memory Sticks	‎1
Special Feature	‎Wireless
Item Weight	‎9 g
Product Dimensions	‎4 x 4 x 4 cm; 9 g
Item model number	‎3-01-0268-1
Item Height	‎40 Millimeters
Item Width	‎40 Millimeters
Processor Speed	‎8.5 GHz
Number of processors	‎1
Memory Storage Capacity	‎4 MB
Memory Technology	‎LPDDR4
Hard Disk Interface	‎USB
Wireless Standard	‎802.11b
Number of USB Ports	‎1
Connectivity Technology	‎Wi-Fi
Voltage	‎5.5 Volts
Power Source	‎USB
Operating System	‎NodeMCU
Compatible Device	‎Personal Computer, Smartphone, Arduino
Included Components	‎Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module
Are batteries included?	‎No
Hardware Interface Type	‎USB

Additional Information

ASIN	B010O1G1ES
Customer Reviews	2,841 ratings 4.2 out of 5 stars
Date First Available	26 September 2015
Manufacturer	Sound Land Corp, Sound Land Corp. No.32.Keji 1st Rd.,Guishan Township,Taoyuan County 33383 Ph- 886-3-396-1958 Taiwan R. O. C.
Packer	Sound Land Corp. No.32.Keji 1st Rd.,Guishan Township,Taoyuan County 33383 Ph- 886-3-396-1958 Taiwan R. O. C.
Importer	MARKSON TRAD INDIA G.F., PLOT NO 363A 364A KHASRA NO 61/11,, STREET NO.17, ANANDPUR DHAM VILLAGE KRALA, NEW DELHI, 110081 (INDIA) mo.- 7477-070728
Item Dimensions LxWxH	40 x 40 x 40 Millimeters
Net Quantity	1 count
Generic Name	Programming, prototyping, projects, hobby, industrial components.

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Safety and product resources

Safety documents

Instructions for Use (IFU) (PDF)|User Manual (PDF)

What is in the box?

Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module

Product description

Lolin NodeMCU ESP8266 CP2102 NodeMCU WIFI Serial Wireless Module

Compare with similar items

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Price	-31% ₹411.00 M.R.P: ₹599.00	-28% ₹650.00 M.R.P: ₹900.00	-58% ₹499.00 M.R.P: ₹1,200.00	-32% ₹298.00 M.R.P: ₹438.00	-28% ₹414.00 M.R.P: ₹575.00	-30% ₹699.00 M.R.P: ₹999.00
Delivery	Get it by Friday, April 25	Get it by Tuesday, April 29	—	Get it by Friday, April 25	Get it by Friday, April 25	—
Customer Ratings	4.22,841	3.892	4.5105	5.01	4.079	4.429
Sold by	Clicktech Retail Private Ltd	woo in style	Malakar-Group	Clicktech Retail Private Ltd	Clicktech Retail Private Ltd	oceanlabz
operating system	NodeMCU	NodeMCU Lua	FreeRTOS	Lua, Arduino IDE	—	Supports UNO IDE and ESP-IDF
CPU manufacturer	—	—	Espressif	—	ARM	Xtensa® LX6
CPU speed	8.5 GHz	—	2.4 GHz	2.4 GHz	—	240 MHz
RAM tech	LPDDR4	DDR3	SRAM	LPDDR3	—	SRAM
connectivity tech	Wi-Fi	USB, Wi-Fi	USB, Bluetooth, Wi-Fi, I2C	Wi	Wi-Fi	Wi-Fi, Bluetooth, GPIO, I2C, USB
wireless standard	802 11 B	802 11 BGN	802 11 BGN	802 11 BGN	—	802 11 ABGN
core count	1	1	2	1	—	2

Customer reviews

2,841 global ratings

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Customers say

Customers find the NodeMCU board to be of good quality, easy to work with, and worth its price. They appreciate its appearance, with one customer noting its neat and clean PCB, and consider it suitable for IoT projects. The WiFi connectivity receives positive feedback, with one customer highlighting its capability for mobile-controlled automation projects. However, the functionality receives mixed reviews, with several customers reporting that it doesn't work at all. The size receives mixed feedback, with some appreciating its small form factor while another finds it too small to fit on an Indian breadboard.

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Quality Value for money Ease of use Wifi connectivity Appearance Build quality Size Functionality

183 customers mention "Quality"154 positive29 negative

Customers find the single board computer to be an amazing device that works well.

"Good work well but range is small" Read more

"...2. Pins come soldered & not separate. 3. Neatly made, lightweight and compact board. 4. Arduino compatible & easy to program. 5...." Read more

"Good product .I uploaded a code it sucess" Read more

"It's good and better if you want better then by esp-32 module" Read more

31 customers mention "Value for money"27 positive4 negative

Customers find the single board computer worth its price.

"...Blynk app is free to use with 1800 free recyclable energy with each account, which is more than sufficient for general projects or unlimited energy..." Read more

"...Good, modern and cheap for modern projects that supports micro-python and Arduino IDE. This is a obviously a clone, but does the job." Read more

"Liked the product. Worked as expected. Value for money. But some of the header pins were bent, had to straighten them." Read more

"...heats up very quickly just a small problem although the it is best in this price" Read more

17 customers mention "Ease of use"14 positive3 negative

Customers find the single board computer easy to work with and install, with one customer highlighting its suitability for mobile-controlled automation projects.

"...Blynk support for this board, it’s really easy working with any of mobile controlled automation projects without much of coding...." Read more

"...This will definitely add to cost. Pros: (*) Very easy to work with, just attach micro usb mobile cable, and we are good to go...." Read more

"Easy to access." Read more

"Great device to work with. Easy to configure and work with Arduino environment...." Read more

10 customers mention "Wifi connectivity"10 positive0 negative

Customers appreciate the WiFi connectivity of this module, with one customer noting it works well with the WiFiManager library on GitHub, and another mentioning its suitability for wireless projects.

"These product wifi canativity is so bed improve your wifi canativity" Read more

"Awesome MCU...It Is Best For MITM Attacks,Wifi Jammers & Many Others Home Project.. The Product Is Value For Money....." Read more

"good connectivity with the wifi" Read more

"...it worked perfectly with my 3D printer for wifi capability also explored other features everything worked fine." Read more

9 customers mention "Appearance"9 positive0 negative

Customers like the appearance of the NodeMCU module, finding it neat and original, with one customer noting that the PCB looks clean.

"...It’s compact, neat and works great without any big trouble. You can definitely go for it...." Read more

"its such a nice and true product.... i use it regularly from last 4 to 5 month but it still work as 1st time used 😊 such a nice NODE MCU..." Read more

"It's presentable and you can easily feed your algorithms with the arduino IDE itself." Read more

"Working as expected. Perfectly loading sketches." Read more

8 customers mention "Build quality"8 positive0 negative

Customers find the build quality positive, with one mentioning it's perfect for prototyping and another noting it's great for making a jammer.

"Great for projects" Read more

"Awesome MCU...It Is Best For MITM Attacks,Wifi Jammers & Many Others Home Project.. The Product Is Value For Money....." Read more

"A good starter kit to learn esp8266. I was able to use it to remotely control home appliances" Read more

"nice board to start IOT experiments." Read more

9 customers mention "Size"3 positive6 negative

Customers have mixed opinions about the size of the board computer, with several noting it is small, while one customer mentions it's not compatible with Indian breadboards.

"...(*)This devkit is really small (*)Very easy to flash the soldered esp-12 chip with Nodelua/NodeJS. earlier used to be a headache...." Read more

"...3. Neatly made, lightweight and compact board. 4. Arduino compatible & easy to program. 5. CP2102 chip for USB to UART...." Read more

"Good enough. But with the other chip...the board is smaller" Read more

"I still got amica.. but small in size." Read more

25 customers mention "Functionality"3 positive22 negative

Customers report issues with the functionality of the NodeMCU module, with multiple customers mentioning that it doesn't work at all.

"...days earlier I requested a refund for your product, due to it's improper functioning...." Read more

"The product is dead in 15 days means not working. I recommend you NOT TO BUY from Amazon and now it is not returned.😐..." Read more

"...1st it's not of lolin brand 2nd brought 2 nodemcu, both not working. One showing solid blue light where as another not working at all...." Read more

"This module worked 5 days only ...after that not working i have tried so many ways but no use module dead" Read more

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Top reviews from India

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RAJESH
Well
Reviewed in India on 3 April 2025
Verified Purchase

Good work well but range is small

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⚡ Pushpendra Singh Patel ⚡
ESP8266- Compact, Light, Featured, Breadboard Friendly Board for IOT & Automation | REVIEW | GUIDES
Reviewed in India on 26 February 2019
Verified Purchase
ESP8266 is very common name now a days. When I saw this board, I was like wow. After researching a lot about which one to order, plain ESP8266 or NODEMCU one, I was on for NodeMCU.
But even in case of NodeMCU, there are many different manufacturers implementing the firmware on board e.g. Lolin & Amica.

Product title mentions Lolin but display pictures are of Amica. Lots of confusion. But I went on & ordered one from cloudtail seller. To my surprise, my board came in poly packaging having Lolin sticker with Amica board sealed in antistatic packet. :D So it’s a hit or miss kind of thing.
Got it two times from cloudtail & both times it was Amica board. So not an issue.

•••••••••••••••
INSIDE BOX
•••••••••••••••

NodeMCU board inside antistatic packet with hard foam to protect pins.

Board Dimensions: L x B x H, 49 x 25 x 13mm (including pins, w/o header pins height is just 4mm)
Weight: 8g (wrongly mentioned as 50g in listing)

•••••••
PROS
•••••••
1. Breadboard friendly.
2. Pins come soldered & not separate.
3. Neatly made, lightweight and compact board.
4. Arduino compatible & easy to program.
5. CP2102 chip for USB to UART. Old version had CH340 chip.
6. Full Blynk support (Believe me, it will mean a lot to you).
7. 4 screw holes at each corner of the board for easy installation.

••••••••
CONS
••••••••
1. Some pins were literally bent on arrival. I had to make them straight using mini plier. Not a big deal, but a hassle. Supplier should take care of it.
2. I got two boards at 2 different times and both had same issue of pin layout not perpendicular to board, rather spread outward by few degrees. I had to make them perpendicular for easy setup on breadboard.

(Reducing 1 star for these two cons. Although being breadboard friendly, you can’t install it directly on breadboard unless you straighten up the pins and make them perpendicular to board. This act may damage board even. So risky.)

•••••••••••••••••••••••••••••••••••••••••••••
SETTING IT UP WITH ADRUINO IDE
•••••••••••••••••••••••••••••••••••••••••••••
1. Download latest Arduino IDE from official site as per your system configuration.
2. Install software in preferred location.
3. It will also install necessary USB drivers including one for our board i.e. CP2102 USB to UART bridge.
4. Visit ESP8266’s github page (Google it) and copy board manager link from there. (Screenshot attached)
5. Open Arduino IDE. By default Arduino does not come with ESP8266 support. So we need to manually specify link for ESP8266.
6. Go to File → Preferences and paste above ESP8266 board manager link under “Additional Boards Manager URLs”. Click on ok.
7. Now go to Tools → Board → Board Manager & search for esp8266 by ESP8266 community.
8. Click on install. It will download several related board definitions and install them. Once installation is successful, close the window.
9. Now when you will go to Tools → Boards, you will find all of ESP8266 related board listed.

••••••••••••••••••••••••••••••••••••••••••••••••
GETTING READY FOR PROGRAMMING
••••••••••••••••••••••••••••••••••••••••••••••••
1. Open Arduino IDE
2. Go to Tools → Boards and choose your board. Here in our case it’s NodeMCU 1.0 (ESP-12E Module)
3. Now in Tools → Port, choose communication port on which board is connected. To find it go to windows device manager & under ports (com & lpt) locate CP210x to UART Bridge. In my case it’s COM3.
4. Specify upload speed in Tools → Upload Speed. 115200 works good in general and with large code sketches also. While 9600 will also work but may fail in some large sketches & is very slow.
5. Leave other options in Tools as such.
6. You are all set now. Code a sketch, upload it to board via Sketch → Upload.
7. While sketch or code is getting uploaded to board, blue LED near Wi-Fi antenna blinks continuously indicating transfer.
8. Enjoy the endless world of ESP8266.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLINK ON BOARD LED (Initial check of board)
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••

There’s a program to blink on board led in examples after you add ESP board in previous step.

1. Open Arduino
2. Go to → File → Examples → ESP8266 → Blink
3. Go to → Sketch → Upload (indicator led will blink while it’s being uploaded)
4. Soon after sketch is uploaded, other led near USB port will start blinking as per delay in sketch/code.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLYNK SUPPORT & EXAMPLE TO SWITCH ON/OFF ONBOARD LED USING SMARTPHONE
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

Blynk app is free to use with 1800 free recyclable energy with each account, which is more than sufficient for general projects or unlimited energy if local server is used. Energy is used by each widget you add to project. You can always purchase more energy for bigger projects or recycle used ones.

Visit Blynk website and go to “getting started” page. Follow the steps i.e.

1. Install Blynk app from store & register.
2. Create project & get auth token.
3. Download library zip from link provided.
3. Install Blynk library manually by copying unzipped folders to mentioned paths of your sketchbook folder for Arduino IDE.
4. After libraries are installed, another entry with Blynk is created in examples.
5. Open Arduino IDE & Go to → File → Examples → Blynk → Boards_WiFi → ESP8266_Standalone.
6. Enter auth token from email, ssid and password of your Wi-Fi in sketch.
7. Upload sketch to board.
8. Now in app add two buttons to project created above, by clicking on + and selecting button
9. Open each button and specify D0 & D4 pin with 1 → 0.
10. Click on Play button on top.
11. Press buttons & your on-board LEDs will switch on off.
11. Enjoy the endless world of IOT and automation. Control everything from your smartphone via Blynk server or local server.

•••••••••••••••••••
FINAL VERDICT
•••••••••••••••••••

Initially i was sceptical about purchasing board from this listing after reading reviews. But after receiving I am in no doubt that it’s a wonderful board. It’s compact, neat and works great without any big trouble. You can definitely go for it.

With Blynk support for this board, it’s really easy working with any of mobile controlled automation projects without much of coding.

P.S. Amica one is better and compact board. While name mentions Lolin, pictures display Amica board. So in case you receive Lolin board and are not satisfied, you can always ask for replacement board under "Product not as displayed" category.

Read more

⚡ Pushpendra Singh Patel ⚡

ESP8266- Compact, Light, Featured, Breadboard Friendly Board for IOT & Automation | REVIEW | GUIDES

Reviewed in India on 26 February 2019
ESP8266 is very common name now a days. When I saw this board, I was like wow. After researching a lot about which one to order, plain ESP8266 or NODEMCU one, I was on for NodeMCU.
But even in case of NodeMCU, there are many different manufacturers implementing the firmware on board e.g. Lolin & Amica.

Product title mentions Lolin but display pictures are of Amica. Lots of confusion. But I went on & ordered one from cloudtail seller. To my surprise, my board came in poly packaging having Lolin sticker with Amica board sealed in antistatic packet. :D So it’s a hit or miss kind of thing.
Got it two times from cloudtail & both times it was Amica board. So not an issue.

•••••••••••••••
INSIDE BOX
•••••••••••••••

NodeMCU board inside antistatic packet with hard foam to protect pins.

Board Dimensions: L x B x H, 49 x 25 x 13mm (including pins, w/o header pins height is just 4mm)
Weight: 8g (wrongly mentioned as 50g in listing)

•••••••
PROS
•••••••
1. Breadboard friendly.
2. Pins come soldered & not separate.
3. Neatly made, lightweight and compact board.
4. Arduino compatible & easy to program.
5. CP2102 chip for USB to UART. Old version had CH340 chip.
6. Full Blynk support (Believe me, it will mean a lot to you).
7. 4 screw holes at each corner of the board for easy installation.

••••••••
CONS
••••••••
1. Some pins were literally bent on arrival. I had to make them straight using mini plier. Not a big deal, but a hassle. Supplier should take care of it.
2. I got two boards at 2 different times and both had same issue of pin layout not perpendicular to board, rather spread outward by few degrees. I had to make them perpendicular for easy setup on breadboard.

(Reducing 1 star for these two cons. Although being breadboard friendly, you can’t install it directly on breadboard unless you straighten up the pins and make them perpendicular to board. This act may damage board even. So risky.)

•••••••••••••••••••••••••••••••••••••••••••••
SETTING IT UP WITH ADRUINO IDE
•••••••••••••••••••••••••••••••••••••••••••••
1. Download latest Arduino IDE from official site as per your system configuration.
2. Install software in preferred location.
3. It will also install necessary USB drivers including one for our board i.e. CP2102 USB to UART bridge.
4. Visit ESP8266’s github page (Google it) and copy board manager link from there. (Screenshot attached)
5. Open Arduino IDE. By default Arduino does not come with ESP8266 support. So we need to manually specify link for ESP8266.
6. Go to File → Preferences and paste above ESP8266 board manager link under “Additional Boards Manager URLs”. Click on ok.
7. Now go to Tools → Board → Board Manager & search for esp8266 by ESP8266 community.
8. Click on install. It will download several related board definitions and install them. Once installation is successful, close the window.
9. Now when you will go to Tools → Boards, you will find all of ESP8266 related board listed.

••••••••••••••••••••••••••••••••••••••••••••••••
GETTING READY FOR PROGRAMMING
••••••••••••••••••••••••••••••••••••••••••••••••
1. Open Arduino IDE
2. Go to Tools → Boards and choose your board. Here in our case it’s NodeMCU 1.0 (ESP-12E Module)
3. Now in Tools → Port, choose communication port on which board is connected. To find it go to windows device manager & under ports (com & lpt) locate CP210x to UART Bridge. In my case it’s COM3.
4. Specify upload speed in Tools → Upload Speed. 115200 works good in general and with large code sketches also. While 9600 will also work but may fail in some large sketches & is very slow.
5. Leave other options in Tools as such.
6. You are all set now. Code a sketch, upload it to board via Sketch → Upload.
7. While sketch or code is getting uploaded to board, blue LED near Wi-Fi antenna blinks continuously indicating transfer.
8. Enjoy the endless world of ESP8266.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLINK ON BOARD LED (Initial check of board)
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••

There’s a program to blink on board led in examples after you add ESP board in previous step.

1. Open Arduino
2. Go to → File → Examples → ESP8266 → Blink
3. Go to → Sketch → Upload (indicator led will blink while it’s being uploaded)
4. Soon after sketch is uploaded, other led near USB port will start blinking as per delay in sketch/code.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLYNK SUPPORT & EXAMPLE TO SWITCH ON/OFF ONBOARD LED USING SMARTPHONE
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

Blynk app is free to use with 1800 free recyclable energy with each account, which is more than sufficient for general projects or unlimited energy if local server is used. Energy is used by each widget you add to project. You can always purchase more energy for bigger projects or recycle used ones.

Visit Blynk website and go to “getting started” page. Follow the steps i.e.

1. Install Blynk app from store & register.
2. Create project & get auth token.
3. Download library zip from link provided.
3. Install Blynk library manually by copying unzipped folders to mentioned paths of your sketchbook folder for Arduino IDE.
4. After libraries are installed, another entry with Blynk is created in examples.
5. Open Arduino IDE & Go to → File → Examples → Blynk → Boards_WiFi → ESP8266_Standalone.
6. Enter auth token from email, ssid and password of your Wi-Fi in sketch.
7. Upload sketch to board.
8. Now in app add two buttons to project created above, by clicking on + and selecting button
9. Open each button and specify D0 & D4 pin with 1 → 0.
10. Click on Play button on top.
11. Press buttons & your on-board LEDs will switch on off.
11. Enjoy the endless world of IOT and automation. Control everything from your smartphone via Blynk server or local server.

•••••••••••••••••••
FINAL VERDICT
•••••••••••••••••••

Initially i was sceptical about purchasing board from this listing after reading reviews. But after receiving I am in no doubt that it’s a wonderful board. It’s compact, neat and works great without any big trouble. You can definitely go for it.

With Blynk support for this board, it’s really easy working with any of mobile controlled automation projects without much of coding.

P.S. Amica one is better and compact board. While name mentions Lolin, pictures display Amica board. So in case you receive Lolin board and are not satisfied, you can always ask for replacement board under "Product not as displayed" category.

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252 people found this helpful

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Saidev S
Good product
Reviewed in India on 17 November 2024
Verified Purchase
Good product .I uploaded a code it sucess

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Saidev S

Good product

Reviewed in India on 17 November 2024
Good product .I uploaded a code it sucess

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Rishu kumar
Perfect and value of money
Reviewed in India on 24 April 2024
Verified Purchase
It's good and better if you want better then by esp-32 module

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Ramu
Good for learning, bad for interfacing higher(12V!) signals as those detroy it. Works with 3.3V.
Reviewed in India on 6 December 2015
Verified Purchase
Since this is costly board by indian standards, i write cons first:
(*)Quality isn't that great.
(*)esp 12 module is soldered, so once you program it, i don't know you can use the same board to program other modules or not.
(*)CAUTION: 3.3V ONLY. 12V definitely will destroy it. For sure. I learned it the hard way. There is no protection. If you have to use 12V, use optocoupler or add some diodes.
(*)There is no level shifter 3.3V/5V/12V
(*) No onboard relays/MOSFET/sensors/opto coupler. This is why we use this esp chip, and using this board, we have to add all of them manually....

I haven't tried it yet, but this board claims to provide all of them-->http://www.amazon.in/ESP8266-Black-cloud-features-Board/dp/B0148HKRPS/ref=pd_sim_sbs_23_5?ie=UTF8&dpID=515it1WwXxL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=0J8ZE8R9HY1ENKJGMNDN

Will try when i get time.

I couldn't get this thing to work to drive 5V nMOSFET gate. This will definitely add to cost.
Pros:
(*) Very easy to work with, just attach micro usb mobile cable, and we are good to go. download ESPLORER java application.
Now, download ESP flasher from the link in that application. After that this device can work with LUA scripting language (very easy).
Now download samples from the web, this chip esp-12e will act as standalone web server, find out ip address, type it in your browser and you can control all its GPIO pins from web!
(*)This devkit is really small
(*)Very easy to flash the soldered esp-12 chip with Nodelua/NodeJS. earlier used to be a headache.

However, i would recommend to buy it only to learn basics of esp12 and not for real interfacing as 12V destroys this for sure! and we don't want our 800/- to go in drain.

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Hardik Pandya
After 4-5 month review
Reviewed in India on 25 November 2023
Verified Purchase
its such a nice and true product.... i use it regularly from last 4 to 5 month but it still work as 1st time used 😊 such a nice NODE MCU

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Jatin
Waste
Reviewed in India on 16 December 2024
Verified Purchase
Totaly waste of money this product aurdino not support this device please don't purchase for wifi hacking and other work

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EHM
A fine learning thing
Reviewed in India on 3 January 2025
Verified Purchase
Work on a 2.5ghz frequency only that’s a limitation rest all is fine, i used it to hack others wifi networks 😂

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Henri Bergius
Non-existing quality assurance
Reviewed in Germany on 6 July 2017
Verified Purchase

I ordered six of these boards yesterday. They arrived quickly, but two out of six were not working (one not flashable at all, one not able to connect to WiFi). Lots of the soldering is shoddy and connections between components weak or non-existing.

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Mark Serrano
Best ESP8266 dev board out there!
Reviewed in the United States on 8 June 2017
Verified Purchase

The media could not be loaded.

July 25th Review Update
============
I ordered 6 more pieces last night, and I got all of them following day. I installed Micropython on all of them and activated WebRepl, and I have no issues so far. All of them worked! I'm attaching new screenshots (the one with a fleet of NodeMcu's). Included in this screenshots are some of the projects I have done with this board:

1. Thermal camera sensor
2. Motion detector
3. Robot car
4. Laser tripwire system with RFID-based card access
5. Stepper motor with DRV8825 driver integration
6. Micro servo with OLED screen / Hall Sensor switch

All of these are programmed with Micropython. I have also attached screenshots of my frontend and backend Raspberry-based data collector and analytics program (my own platform). The point of these screenshots is to show what's possible with this board.

So far out of my 19 NodeMcu boards, 17 are perfect. The other two were failure because one of them was never delivered and the other one won't allow any firmware installation. Amazon has refunded those two by the way.

July 10th Review Update
============
So I ordered two more. However one of them was missing. Amazon only delivered one! The other one isn't accepting firmware updates. I wasted a week of waiting for the delivery and talking to support. The good thing is Amazon refunded both, and HiLetGo email tech support is able to provide "moral" support. At least they are responsive. So at the end the delivery part was Amazon's fault because what HiLetGo does is they delivery the items to Amazon and Amazon is the one who fulfills the order. Now the other board that's malfunctioning seems to HiLetGo's fault. I am at odds whether I should reduce my rating from 5 stars to 4 or 3 stars.

I looked for alternatives but I can't find any reliable sellers with reliable reviews. So I still went with HiLetGo. I ordered an extra 5 boards again. And they all worked fine. It took 2 mins to flash the firmware. So 10 good boards versus 1 missing and 1 malfunctioning (which both got refunded) I think should offset the bad experience I had. Comment below if you agree or not.

As part of my research why this other board isn't flashing correctly because of "espcomm_sync failed" errors, it seems it's a hardware misconfiguration. There were suggested workarounds but they didn't work for me. Google "nodemcu espcomm_sync failed" for solutions since I am not allowed to post a URL here. Also Google "Comparison of ESP8266 NodeMCU development boards" to get more information on various NodeMcu boards.

I say get the Amica-based NodeMcu board. It's the easiest and most reliable. The good thing is HiLetGo carries the Amica-based NodeMcu.

So far the projects I have made with this board are:
* Robot car
* Magnetic reed switches for door and mailbox
* Joystick controllers
* Rfid controller
* Weight sensors
* Neopixel controllers

I still prefer this board over the Adafruit Huzzah and Wemos. Recently I've dabbled with Ultrasonic Sensors and Relay. This board also worked flawlessly but the Olimex board seems better but pricier because it has integrated relay. I guess that's not really better because you can buy an extra relay and put it with the NodeMcu.

Jun 29th 2017 Review Update
============
So I ordered two of these again since they are the most reliable ESP8266 dev board out there (for the cheapest price). Oh I've tried them all (Huzzah, Olimex, Wemos etc). If you think I haven't, send me a message and I will order it.

Today I had a hiccup with uploading Micropython. It won't flash. The same commands that worked on my previous two NodeMcus worked flawlessly from these same vendor. But now it won't. I figured I have to use special flash mode when using esptool. Now it's working again.

So for those who are using Micropython and flashing the firmware with esptool, here's the commands that I'd suggest you try
1. Erase first. This assumes you update the PORT accordingly
esptool.py --port /dev/tty.SLAB_USBtoUART erase_flash

2. Upload the firmware. This assumes you went to Micropython and downloaded the firmware! The "-fm dio" is CRITICAL for these latest two dev boards I ordered. Previously I didn't need those. I read from the docs, most NodeMcu boards use this mode. So I guess I got lucky on my first two.
esptool.py --port /dev/tty.SLAB_USBtoUART --baud 115200 write_flash -fm dio 0x00000 esp8266-20170526-v1.9.bin

3. Reset and connect to your terminal to verify.

Bonus content:
Upload a NodeMcu LUA-based firmware:
===============================
esptool.py --port /dev/tty.SLAB_USBtoUART write_flash -fm dio 0x00000 nodemcu-master-21-modules-2017-06-09-04-48-50-float.bin

Note: This assumes you went to NodeMcu and downloaded their firmware. And you browse to the directory where you have this firmware.

Upload a NonOS firmware from Espressif:
===============================
esptool.py --port /dev/tty.SLAB_USBtoUART --baud 115200 write_flash --flash_mode dio --flash_size detect 0x00000 boot_v1.7.bin 0x01000 at/512+512/user1.1024.new.2.bin 0x3fc000 esp_init_data_default.bin 0x7e000 blank.bin 0x3fe000 blank.bin

Note: This assumes you downloaded the ESP8266_NONOS_SDK-2.1.0 sdk from Espressif's website. After downloading browse to ESP8266_NONOS_SDK-2.1.0/bin directory.

Screenshots from my projects
=======================
I've done a couple but I think these two robots I've made are notable and shows you can control these with NodeMcu. The joystick is controlled by a mini NodeMcu (same code I used for the standard NodeMcu). Whoemever is saying this dev board is fake doesn't know a thing.

Original Review
============
I ordered two of this, so I can play around with Micropython firmware (Python-based language) and the Nodemcu firmware (LUA-based language).

Pros:
* Solid build like a rock (compare to other ESP8266 boards)
* It has everything you need. No need for a separate FTDI cable or breakout board
* No need to pull down GPIOs to do a firmware flash update. It's all automatic. Firmware update with Micropython is pure magic.
* No need to solder pins since they are presoldered. Of course you might need to solder the unit itself with your projects but that's a different discussion.
* 4MB memory. That's 32Mbit
* Price is reasonable compare to Ebay

Cons
* None. It just works. That's why I ordered a second one.

Read more

Mark Serrano

Best ESP8266 dev board out there!

Reviewed in the United States on 8 June 2017

July 25th Review Update
============
I ordered 6 more pieces last night, and I got all of them following day. I installed Micropython on all of them and activated WebRepl, and I have no issues so far. All of them worked! I'm attaching new screenshots (the one with a fleet of NodeMcu's). Included in this screenshots are some of the projects I have done with this board:

1. Thermal camera sensor
2. Motion detector
3. Robot car
4. Laser tripwire system with RFID-based card access
5. Stepper motor with DRV8825 driver integration
6. Micro servo with OLED screen / Hall Sensor switch

All of these are programmed with Micropython. I have also attached screenshots of my frontend and backend Raspberry-based data collector and analytics program (my own platform). The point of these screenshots is to show what's possible with this board.

So far out of my 19 NodeMcu boards, 17 are perfect. The other two were failure because one of them was never delivered and the other one won't allow any firmware installation. Amazon has refunded those two by the way.

July 10th Review Update
============
So I ordered two more. However one of them was missing. Amazon only delivered one! The other one isn't accepting firmware updates. I wasted a week of waiting for the delivery and talking to support. The good thing is Amazon refunded both, and HiLetGo email tech support is able to provide "moral" support. At least they are responsive. So at the end the delivery part was Amazon's fault because what HiLetGo does is they delivery the items to Amazon and Amazon is the one who fulfills the order. Now the other board that's malfunctioning seems to HiLetGo's fault. I am at odds whether I should reduce my rating from 5 stars to 4 or 3 stars.

I looked for alternatives but I can't find any reliable sellers with reliable reviews. So I still went with HiLetGo. I ordered an extra 5 boards again. And they all worked fine. It took 2 mins to flash the firmware. So 10 good boards versus 1 missing and 1 malfunctioning (which both got refunded) I think should offset the bad experience I had. Comment below if you agree or not.

As part of my research why this other board isn't flashing correctly because of "espcomm_sync failed" errors, it seems it's a hardware misconfiguration. There were suggested workarounds but they didn't work for me. Google "nodemcu espcomm_sync failed" for solutions since I am not allowed to post a URL here. Also Google "Comparison of ESP8266 NodeMCU development boards" to get more information on various NodeMcu boards.

I say get the Amica-based NodeMcu board. It's the easiest and most reliable. The good thing is HiLetGo carries the Amica-based NodeMcu.

So far the projects I have made with this board are:
* Robot car
* Magnetic reed switches for door and mailbox
* Joystick controllers
* Rfid controller
* Weight sensors
* Neopixel controllers

I still prefer this board over the Adafruit Huzzah and Wemos. Recently I've dabbled with Ultrasonic Sensors and Relay. This board also worked flawlessly but the Olimex board seems better but pricier because it has integrated relay. I guess that's not really better because you can buy an extra relay and put it with the NodeMcu.

Jun 29th 2017 Review Update
============
So I ordered two of these again since they are the most reliable ESP8266 dev board out there (for the cheapest price). Oh I've tried them all (Huzzah, Olimex, Wemos etc). If you think I haven't, send me a message and I will order it.

Today I had a hiccup with uploading Micropython. It won't flash. The same commands that worked on my previous two NodeMcus worked flawlessly from these same vendor. But now it won't. I figured I have to use special flash mode when using esptool. Now it's working again.

So for those who are using Micropython and flashing the firmware with esptool, here's the commands that I'd suggest you try
1. Erase first. This assumes you update the PORT accordingly
esptool.py --port /dev/tty.SLAB_USBtoUART erase_flash

2. Upload the firmware. This assumes you went to Micropython and downloaded the firmware! The "-fm dio" is CRITICAL for these latest two dev boards I ordered. Previously I didn't need those. I read from the docs, most NodeMcu boards use this mode. So I guess I got lucky on my first two.
esptool.py --port /dev/tty.SLAB_USBtoUART --baud 115200 write_flash -fm dio 0x00000 esp8266-20170526-v1.9.bin

3. Reset and connect to your terminal to verify.

Bonus content:
Upload a NodeMcu LUA-based firmware:
===============================
esptool.py --port /dev/tty.SLAB_USBtoUART write_flash -fm dio 0x00000 nodemcu-master-21-modules-2017-06-09-04-48-50-float.bin

Note: This assumes you went to NodeMcu and downloaded their firmware. And you browse to the directory where you have this firmware.

Upload a NonOS firmware from Espressif:
===============================
esptool.py --port /dev/tty.SLAB_USBtoUART --baud 115200 write_flash --flash_mode dio --flash_size detect 0x00000 boot_v1.7.bin 0x01000 at/512+512/user1.1024.new.2.bin 0x3fc000 esp_init_data_default.bin 0x7e000 blank.bin 0x3fe000 blank.bin

Note: This assumes you downloaded the ESP8266_NONOS_SDK-2.1.0 sdk from Espressif's website. After downloading browse to ESP8266_NONOS_SDK-2.1.0/bin directory.

Screenshots from my projects
=======================
I've done a couple but I think these two robots I've made are notable and shows you can control these with NodeMcu. The joystick is controlled by a mini NodeMcu (same code I used for the standard NodeMcu). Whoemever is saying this dev board is fake doesn't know a thing.

Original Review
============
I ordered two of this, so I can play around with Micropython firmware (Python-based language) and the Nodemcu firmware (LUA-based language).

Pros:
* Solid build like a rock (compare to other ESP8266 boards)
* It has everything you need. No need for a separate FTDI cable or breakout board
* No need to pull down GPIOs to do a firmware flash update. It's all automatic. Firmware update with Micropython is pure magic.
* No need to solder pins since they are presoldered. Of course you might need to solder the unit itself with your projects but that's a different discussion.
* 4MB memory. That's 32Mbit
* Price is reasonable compare to Ebay

Cons
* None. It just works. That's why I ordered a second one.

Images in this review

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Muhammad Asharaf
Good quality
Reviewed in the United Arab Emirates on 10 May 2023
Verified Purchase
Best Buy for the money. No problems and works perfect.

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horack
My new go-to board instead of Arduino (built-in WiFi, wireless code updates)
Reviewed in the United States on 12 May 2016
Verified Purchase
These things are awesome. I am currently running 3 of them with a small 64x128 OLED display and a DHT22 sensor in different places in the house. All this built using the Ardunio IDE. I have also added some NTP code I found on the web and now each board syncs up its clock using NTP, so it's almost like having an RTC onboard (as long as you have internet connectivity, at least one time when you power up or reset the device). One of the most awesome features is being able to use the ArduinOTA package so that I can now make code updates wirelessly over wifi after burning the initial code into each board. There are only a few reasons that I would maybe use an Arduino board instead of these: Analog inputs - this has just one built in. Most of my analog input sensors already provide SPI or I2C interfaces, so that's not an issue for me. You may also opt for Arduino if you absolutely need a 5V device (these are 3.3V) or for something battery powered where you'd want the lowest drain. Not sure yet if I can shut off the wifi radio in this guy to achieve similar low-power useability but for 90%+ of my projects, this has just become my go-to board. Note that the one I got from HiLetgo seems to be better than two other ones I got later from another seller. The HiLetgo one can be programmed at a full 921600 baud over USB, where the ones from the other seller can only be programmed reliably at 115200. This could be just luck-of-the-draw and probably they all come from the same factory and it may have just been a batch of less precise processor crystals or who knows what. The difference in programming speed isn't huge, so no big deal. Overall, I am very pleased with these boards. I've attached a pic of my temperature/humidity sensor project. Uses just a NodeMCU, a breadboard, an I2C OLED display, a DHT22 sensor, a 10Kohm resistor and 7 jumper wires. I can access each one of my 3 boards through any browser to get the readings off of it. You could get rid of the OLED and 2 jumper wires, if you just want to be able to read your data through a browser.
- Quick follow up: I just got 3 more from HiLetgo and they all can be programmed at full 921600 baud, so FWIW, the HiLetgo "brand" appears to be better than the batch of 2 I got from a different seller, which could only be programmed reliably at significantly lower speeds though they still appear to run code fine after programming. I still love these NodeMCUs :)
- Another follow up: I have created a githup repo (search github.com for "esp8266_arduino_temperature_nodes") with the source code. It's a bit of a hodge podge since it's just experimental as I play with this board's capabilities. (update: added ILI9341 TFT display, see pic) Hope somebody finds it useful.

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horack

My new go-to board instead of Arduino (built-in WiFi, wireless code updates)

Reviewed in the United States on 12 May 2016
These things are awesome. I am currently running 3 of them with a small 64x128 OLED display and a DHT22 sensor in different places in the house. All this built using the Ardunio IDE. I have also added some NTP code I found on the web and now each board syncs up its clock using NTP, so it's almost like having an RTC onboard (as long as you have internet connectivity, at least one time when you power up or reset the device). One of the most awesome features is being able to use the ArduinOTA package so that I can now make code updates wirelessly over wifi after burning the initial code into each board. There are only a few reasons that I would maybe use an Arduino board instead of these: Analog inputs - this has just one built in. Most of my analog input sensors already provide SPI or I2C interfaces, so that's not an issue for me. You may also opt for Arduino if you absolutely need a 5V device (these are 3.3V) or for something battery powered where you'd want the lowest drain. Not sure yet if I can shut off the wifi radio in this guy to achieve similar low-power useability but for 90%+ of my projects, this has just become my go-to board. Note that the one I got from HiLetgo seems to be better than two other ones I got later from another seller. The HiLetgo one can be programmed at a full 921600 baud over USB, where the ones from the other seller can only be programmed reliably at 115200. This could be just luck-of-the-draw and probably they all come from the same factory and it may have just been a batch of less precise processor crystals or who knows what. The difference in programming speed isn't huge, so no big deal. Overall, I am very pleased with these boards. I've attached a pic of my temperature/humidity sensor project. Uses just a NodeMCU, a breadboard, an I2C OLED display, a DHT22 sensor, a 10Kohm resistor and 7 jumper wires. I can access each one of my 3 boards through any browser to get the readings off of it. You could get rid of the OLED and 2 jumper wires, if you just want to be able to read your data through a browser.
- Quick follow up: I just got 3 more from HiLetgo and they all can be programmed at full 921600 baud, so FWIW, the HiLetgo "brand" appears to be better than the batch of 2 I got from a different seller, which could only be programmed reliably at significantly lower speeds though they still appear to run code fine after programming. I still love these NodeMCUs :)
- Another follow up: I have created a githup repo (search github.com for "esp8266_arduino_temperature_nodes") with the source code. It's a bit of a hodge podge since it's just experimental as I play with this board's capabilities. (update: added ILI9341 TFT display, see pic) Hope somebody finds it useful.

Images in this review

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André Wiedemann
Arduino kompatibel mit integriertem Wifi, günstig
Reviewed in Germany on 12 November 2015
Verified Purchase
Der NodeMCU basiert auf einem ESP8266 controller mit integriertem Wifi.
Die Komponenten sind so günstig, das sich damit perfekt Projekt Rund um das Thema Internet of Thing (IoT) realisieren lassen, ohne gleich den Geldbeutel zu sprengen.
Ich nutze ihn aktuell zusammen mit einem Temperatur- und Luftfeuchtigkeit-Sensor zum loggen der Daten in Richtung [.....]
Mit dem gesammelt Daten steuere ich im Anschluss die Thermostate in meiner Wohnung.

Die Version auf Amazon habe ich damals bestellt, da sie sofort lieferbar war. Beim Chinesen des Vertrauens bekommt man die gleichen Mikrocontroller für ca. 6€, aber mit Lieferzeit von 2-3 Wochen.

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