Description

High-Performance NodeMCU ESP8266 WiFi Module for IoT

Technical Specifications of NodeMCU ESP8266 WiFi Module

• Microcontroller Core: Integrated ESP8266 Tensilica L106 32-bit RISC microprocessor.

• Connectivity: Built-in 802.11 b/g/n Wi-Fi with integrated TCP/IP protocol stack.

• Operating Voltage: 3.3V logic level with an on-board 5V to 3.3V regulator.

• Flash Memory: 4MB of external SPI flash for program and data storage.

• Clock Speed: Adjustable frequency from 80 MHz up to 160 MHz.

• I/O Pins: 10 GPIO pins, PWM, I2C, SPI, and one 10-bit ADC input.

• Interface: Integrated CP2102 or CH340 USB-to-Serial converter for easy programming.

• Firmware: The NodeMCU ESP8266 WiFi Module supports Lua, Arduino C++, and MicroPython.

Usage and IoT Implementation

• First, connect the board to your PC via a micro-USB cable.

• Next, install the ESP8266 board manager within the Arduino IDE environment.

• Then, select the appropriate COM port to begin uploading your custom firmware.

• Afterward, configure the WiFi station mode to connect to your local network.

• Consequently, you can host a local web server to control relays remotely.

• Finally, utilize deep sleep modes to save power in battery-operated sensor nodes.

Advantages and Disadvantages of NodeMCU ESP8266 WiFi Module

• Pros: Extremely low cost compared to traditional WiFi shields and dedicated microcontrollers.

• Furthermore, the large global community provides extensive libraries for cloud integration.

• Cons: Single analog-to-digital converter pin limits complex sensor array monitoring.

• Additionally, it is sensitive to 5V signals on GPIO pins which causes hardware failure.

Precautions and Handling Guidelines

• Warning: Never apply 5V directly to the GPIO pins to avoid burning the chip.

• Avoid drawing more than 12mA from any single digital output pin.

• Do not cover the onboard PCB antenna with metallic enclosures or thick shielding.

What is Included in the Package

• 1x NodeMCU ESP8266 WiFi Module (Amica V2 or CP2102 version).

• Factory-soldered header pins for immediate breadboard compatibility and testing.

Tutorial on how to use this: Click Here

Order more components from AmpFlick: Click Here

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