ESP8266 NodeMCU Development Board

DESCRIPTION: The ESP8266 NodeMCU CP2102 WiFi Development Board is a compact and cost-effective platform for building wireless IoT and embedded projects. Powered by the ESP8266 chip with an ESP-12 SMD footprint, it integrates Wi-Fi connectivity, multiple GPIOs, and PWM channels, making it ideal for home automation, sensor networks, and smart device prototyping. 
 
KEY FEATURES:
Built on the ESP8266 Xtensa single-core 32-bit L106 microcontroller with Wi-Fi 802.11 b/g/n
Onboard micro USB connector for easy programming and power
4MB flash memory for storing programs and data
Comes with AMICA-CP2102 driver for seamless connectivity with PCs
Compact SMD design with onboard voltage regulator for stable operation
Open-source platform supporting Lua language and Arduino IDE programming
 
TECHNICAL SPECIFICATIONS:
Microcontroller: Xtensa Single-Core 32-bit L106
Operating Voltage: 3.3V | Input Voltage (via USB or external supply): 5V
Digital I/O Pins: 17 (11 usable) | PWM Channels: 8 | ADC: 10-bit
Flash Memory: 4 MB | SRAM: Not available
Frequency: 80 MHz (typical)
Connectivity: Wi-Fi 802.11 b/g/n | No Bluetooth
Power Consumption: Approx. 70.5 mA
Operating Temperature: -40°C to 125°C
Communication Interfaces: SPI, I2C, I2S, UART
Dimensions: ~50 × 25 mm
Weight: 8–10 grams