NodeMCU – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 30 Nov 2025 10:44:02 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp NodeMCU – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 ESP8266 NodeMCU https://hamtechtechnologies.com/product/esp8266-nodemcu/ https://hamtechtechnologies.com/product/esp8266-nodemcu/#respond Thu, 20 Nov 2025 19:51:22 +0000 https://hamtechtechnologies.com/index.php/product/esp8266-nodemcu/ ESP8266 NodeMCU is a Wi-Fi development board featuring the ESP8266 microcontroller, ideal for IoT projects, wireless automation, and rapid prototyping.]]> The ESP8266 NodeMCU integrates the ESP8266 Wi-Fi SoC with a USB-to-serial interface, making it easy to program via the Arduino IDE or Lua. It offers multiple GPIO pins, PWM, ADC, I²C, and SPI interfaces. Its built-in Wi-Fi allows for fast development of IoT devices, smart home automation systems, and wireless sensor networks. The board also supports deep sleep mode for energy-efficient applications.

Key Features

  • ESP8266 Wi-Fi microcontroller with 80 MHz CPU

  • Integrated USB interface for easy programming

  • Multiple GPIO pins with PWM, ADC, I²C, and SPI support

  • Breadboard-friendly form factor

  • Deep sleep mode for low-power IoT applications

  • Supports Arduino IDE and NodeMCU Lua firmware

Variants

  • ESP8266 NodeMCU V2 (CH340 USB)

  • ESP8266 NodeMCU V3 (CP2102 USB)

Specifications

Feature Details
Microcontroller ESP8266
Operating Voltage 3.3V
Input Voltage 5V via USB
Flash Memory 4 MB
Digital I/O Pins 11
ADC 10-bit
Wi-Fi 802.11 b/g/n
Clock Speed 80 MHz
Dimensions 48 × 25 × 13 mm

Applications

  • IoT devices and sensor networks

  • Smart home automation

  • Wireless data logging and monitoring

  • Remote control systems

  • Wi-Fi-enabled robotics projects

Compatible Boards / Circuits

  • Arduino IDE for ESP8266

  • Compatible with various sensors, relays, and displays

  • Can be interfaced with Wemos shields and accessories

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