NodeMcu V3 V2 ESP8266 ESP-12E Lua WIFI Internet of Things Development Board Wireless Module CH340 CP2102 CH9102X
SPECIFICATIONS
Brand Name: XYCJJCXL
Choice: yes
Condition: New
High-concerned chemical: none
Origin: Mainland China
Type: Module
semi_Choice: yes
π ESP8266 CH340 V3/ESP8266 CP2102
2οΈβ£ Interactive |
3οΈβ£ Programmable |
π² Low cost |
β Simple |
π€ Smart |
πΆ WI-FI enabled |
π οΈ Ard--uino-like hardware IO |
βοΈ Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware. |
π» Code like ard--uino, but interactively in Lua script. |
π Nodejs style network API |
π‘ Event-driven API for network applicaitons, which faciliates developers writing code running on a 5mm*5mm sized MCU in Nodejs style. |
π Greatly speed up your IOT application developing process. |
π Introduction:
β‘ ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters,
and power management module. The entire solution takes up the least amount of printed circuit board area.
πΆ This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth chips by TSMC 40nm low power technology,
power and RF properties best, which is safe, reliable, and scalable to a variety of applications.
π Features:
π High performance-price ratio |
π Small volume, easily embeded to other products |
πͺ Strong function with support LWIP protocol, Freertos |
π‘ Supporting three modes: AP, STA, and AP+STA |
π» Supporting Lua program, easily to develop |
π§ ESP8266 CH9102X
1οΈβ£ Open-source |
2οΈβ£ Interactive |
3οΈβ£ Programmable |
π² Low cost |
β Simple |
π€ Smart |
πΆ WI-FI enabled |
π οΈ Ard--uino-like hardware IO |
βοΈ Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware. |
π» Code like ard--uino, but interactively in Lua script. |
π Nodejs style network API |
π‘ Event-driven API for network applicaitons, which faciliates developers writing code running on a 5mm*5mm sized MCU in Nodejs style. |
π Greatly speed up your IOT application developing process. |
π° Lowest cost WI-FI |

π ESP8266 & NodeMCU Develop Introduction
This is the tutorial to NodeMCU 1.0/2.0/2.1 development board (CP2102 / CH340 / CH9102X are applicable) and the lua programming design is given priority to.
Mke sure your computer have installed the USB driver (CP2102/CH340/CH9102X) then the device manager can find the COM.
Confirm the development board has been updated for NodeMCU firmware (NodeMCU official firmware) or you can flash your it according to the fllowing guide.
π§ Part-1.Flash NodeMCU official firmware guide
The firmware given (you can choose either one of them)οΌ

β‘ How to flash?
Open Nodemcu-firmware-flasher, choose which firmware to flash and set the address, then begin flashing.
(At the same time hold RST button and FLASH button, then release RST button first while you begin flash.
Release FLASH button when you see the mac-address.
USB-CH340 version can flash automatically without this way.)

β‘ PART-2. Use ESPlorer to test
Supporting folder has a software with version installed.
Note: ESPlorer need JAVA SE 7 or above.
2. Run ESPlorer, set Serial baud rate 9600.
Then press the OPEN to Nodemcu connection.


β¨ LED Program Example
LED1 is connected to the GPIO16, it could be lighted when GPIO16 was low.
And GPIO16 was named D0 on Nodemcu.
First, we use the ".mode" to set GPIO16 as output, and use ".write" to set level LOW.
In addition, in order to be able to see the light, here with the "TMR.Delay" do the latency.
The whole program is as follows:
gpio.write(0, gpio.LOW) print(gpio.read(0), "\n")
tmr.delay(1000000)
gpio.write(0, gpio.HIGH) print(gpio.read(0), "\n")
β¬οΈ Upload Program
3γUpload the program to Nodemcu.







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- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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