NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development Module
- The ESP8266 is a highly integrated chip designed for the connected world, providing a complete and self-contained Wi-Fi networking solution. It can either host an application or offload all Wi-Fi functions from another application processor, making it a versatile choice for many IoT projects.
- The NodeMCU V2 is an updated version of the original NodeMCU V2 CP2102 model, now running on the Arduino platform. One key change in this version is the use of the CH9102 USB-to-TTL chip, replacing the previously used CP2102. The shift to the CH9102 chip reduces cost, as the CP2102 was priced relatively high in the global market. Despite this change, the NodeMCU V2 with CH9102 functions the same way as the original version, and programs written for the previous model are fully compatible.
Features
- ESP8266 CP9102 NodeMCU LUA ESP-12E WIFI Serial Wireless Module
- Built-in Micro-USB, with flash and reset switches, easy to program
- Full I/O port and Wireless 802.11 supported, direct download no need to reset
- Arduino compatible, works great with the latest Arduino IDE/Mongoose IoT/Micropython
Package Includes
- 1 x NodeMCU ESP8266 CH9102 WIFI Serial Module
NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development Overview
The NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development Module is a compact development board combining the ESP8266 Wi-Fi SoC with a CH9102 USB-to-TTL converter. It provides a ready-to-use Arduino-compatible platform for building Wi-Fi connected projects with UART/GPIO interfaces and on-board flash storage.
Key Features of NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development
- 4.5 V–9 V power input (10 V max) with micro-USB supply and onboard regulator
- CH9102 USB-to-TTL interface for reliable serial programming and debugging
- ESP8266 core with 4 MByte flash memory for firmware and data storage
- UART and multiple GPIO pins exposed for sensor, relay or actuator control
- Smart Link Smart Networking support for easy Wi-Fi configuration via mobile apps
- Wide operating temperature range: –40 °C to 125 °C
- Fast Shipping from Zbotic: Dispatch within 24 hours for in-stock items
Applications and Use Cases
- Prototyping Wi-Fi enabled sensors and data loggers
- Home automation: smart switches, lighting control, and HVAC integration
- Remote control of robots, drones or RC vehicles via TCP/UDP
- IoT gateways for MQTT or HTTP communication
- Smart appliances with over-the-air firmware updates
- Educational projects and workshops on wireless embedded systems
How to Use NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development
Connect the module to your PC using a micro-USB cable, install the CH9102 driver for your operating system, then select “NodeMCU 1.0 (ESP-12E Module)” in the Arduino IDE. Write your sketch using UART or GPIO functions, configure Wi-Fi credentials through Smart Link or hard-coded SSID/password, and upload firmware directly over the USB interface.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What voltage range can I use to power this module?
You can supply the NodeMCU via micro-USB from any 5 V source (e.g., PC USB port) or feed 4.5 V–9 V into the VIN pin. The onboard regulator ensures stable 3.3 V to the ESP8266.
How do I upload code to the NodeMCU with CH9102?
Install the CH9102 USB-to-TTL driver on your computer, open the Arduino IDE, select the correct COM port and board type “NodeMCU 1.0,” then compile and upload your sketch over the USB connection.
What is Smart Link Smart Networking and how do I use it?
Smart Link is an ESP8266 feature that broadcasts configuration packets over Wi-Fi. Use a companion mobile app or a simple UDP script on your PC to send your SSID and password, and the module will join your network without hard-coding credentials.
Technical Specifications
| Model | ESP8266 |
|---|---|
| Interface / Protocol | WiFi |
| SKU | AI0477 |
| Weight | 0.01 kg |
| Availability | Out of Stock |
Applications & Use Cases
The NodeMCU ESP8266 Serial Wireless CH9102 WiFi Development Module is a versatile other esp wifi modules used across a wide range of applications including WiFi connectivity for microcontrollers, IoT sensor nodes, remote monitoring, OTA firmware updates, and cloud-connected devices.
Common use cases:
- Adding WiFi to an existing Arduino project
- Building a cloud-connected weather station
- Enabling remote firmware updates
This product is ideal for IoT developers and electronics hobbyists.
Technical Tip: ESP-WROOM-32 modules need proper decoupling capacitors and antenna clearance for reliable WiFi performance.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Aryan Yadav (verified owner) –
Love this NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Built a smart switch with it. Works with Home Assistant perfectly.
Gaurav Joshi (verified owner) –
Outstanding NodeMCU ESP8266 Serial Wireless CH9102 WiFi! Programmed it with Arduino IDE. All features work as documented.
Prashant Verma (verified owner) –
Good quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flash memory is sufficient for most projects.
Jatin Saini (verified owner) –
This NodeMCU ESP8266 Serial Wireless CH9102 WiFi is amazing for home automation. Connected all my smart devices easily.
Pankaj Arora (verified owner) –
Good quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flash memory is sufficient for most projects.
Zara Kumar (verified owner) –
This NodeMCU ESP8266 Serial Wireless CH9102 WiFi is a beast for the price. Running a web server on it with no issues.
Neeraj Ghosh (verified owner) –
Good NodeMCU ESP8266 Serial Wireless CH9102 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Advik Chauhan –
Superb NodeMCU ESP8266 Serial Wireless CH9102 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Mahesh Srivastava (verified owner) –
Superb NodeMCU ESP8266 Serial Wireless CH9102 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Anand Hegde (verified owner) –
Great quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flashed with ESPHome and it works beautifully.
Pranav Reddy (verified owner) –
Love this NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Built a smart switch with it. Works with Home Assistant perfectly.
Mahesh Verma (verified owner) –
Good NodeMCU ESP8266 Serial Wireless CH9102 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Ananya Bose (verified owner) –
Perfect for my IoT project. This NodeMCU ESP8266 Serial Wireless CH9102 WiFi has excellent WiFi performance.
Anjali Nair –
Good quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flash memory is sufficient for most projects.
Dinesh Patil (verified owner) –
This NodeMCU ESP8266 Serial Wireless CH9102 WiFi is a beast for the price. Running a web server on it with no issues.
Ayush Choudhury (verified owner) –
Good quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flash memory is sufficient for most projects.
Sachin Yadav (verified owner) –
Good quality NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Flash memory is sufficient for most projects.
Aman Kamath (verified owner) –
Outstanding NodeMCU ESP8266 Serial Wireless CH9102 WiFi! Programmed it with Arduino IDE. All features work as documented.
Girish Sethi (verified owner) –
Excellent NodeMCU ESP8266 Serial Wireless CH9102 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Diya Luthra (verified owner) –
Love this NodeMCU ESP8266 Serial Wireless CH9102 WiFi. Built a smart switch with it. Works with Home Assistant perfectly.