NodeMCU ESP8266 Wi-Fi Development Board
The NodeMCU ESP8266 is an open-source, low-cost Wi-Fi development board built around the powerful ESP8266 microcontroller. Designed for IoT (Internet of Things) projects, it combines a full-featured Wi-Fi system-on-chip with easy-to-use GPIOs and USB connectivity. The board comes pre-flashed with the NodeMCU firmware (based on the Lua scripting language), but it also supports Arduino IDE, MicroPython, and AT command firmware for flexible programming.
Key Features:
Microcontroller: ESP8266EX with 32-bit Tensilica CPU
Wi-Fi: 802.11 b/g/n with full TCP/IP stack
Operating Voltage: 3.3V (I/O levels)
USB to Serial: CP2102 / CH340 (varies by board version)
Flash Memory: 4MB (typical)
GPIO Pins: 11 digital I/O pins (multiplexed with I²C, PWM, ADC, etc.)
Analog Input: 1 ADC input (0–1V)
Programming Interface: Micro USB
Breadboard Compatible: Yes
Dimensions: ~48mm x 26mm
Advantages:
Built-in Wi-Fi with easy setup
Ideal for wireless data logging, smart home, and remote sensor projects
Full support for Arduino libraries
Plug-and-play via USB connection
Active community and rich documentation
Common Applications:
Smart home automation
Wireless sensor networks
Remote weather stations
IoT prototypes and projects
Real-time data transmission to cloud services
NodeMCU board ESP8266
NodeMCU ESP8266 Wi-Fi Development Board
The NodeMCU ESP8266 is an open-source, low-cost Wi-Fi development board built around the powerful ESP8266 microcontroller. Designed for IoT (Internet of Things) projects, it combines a full-featured Wi-Fi system-on-chip with easy-to-use GPIOs and USB connectivity. The board comes pre-flashed with the NodeMCU firmware (based on the Lua scripting language), but it also supports Arduino IDE, MicroPython, and AT command firmware for flexible programming.
Key Features:
-
Microcontroller: ESP8266EX with 32-bit Tensilica CPU
-
Wi-Fi: 802.11 b/g/n with full TCP/IP stack
-
Operating Voltage: 3.3V (I/O levels)
-
USB to Serial: CP2102 / CH340 (varies by board version)
-
Flash Memory: 4MB (typical)
-
GPIO Pins: 11 digital I/O pins (multiplexed with I²C, PWM, ADC, etc.)
-
Analog Input: 1 ADC input (0–1V)
-
Programming Interface: Micro USB
-
Breadboard Compatible: Yes
-
Dimensions: ~48mm x 26mm
Advantages:
-
Built-in Wi-Fi with easy setup
-
Ideal for wireless data logging, smart home, and remote sensor projects
-
Full support for Arduino libraries
-
Plug-and-play via USB connection
-
Active community and rich documentation
Common Applications:
-
Smart home automation
-
Wireless sensor networks
-
Remote weather stations
-
IoT prototypes and projects
-
Real-time data transmission to cloud services
-