UNO Based ESP8266 Nodemcu Development Board

The ESP8266 NodeMCU development board is a popular platform for IoT (Internet of Things) projects, combining the ESP8266 WiFi module with the convenience of Arduino-compatible development. Here's a general specification for a typical NodeMCU development board:

• Microcontroller: ESP8266EX (Integrated WiFi SoC)

• Operating Voltage: 3.3V (Ensure all peripherals are compatible)

• Clock Speed: Typically 80MHz, can be overclocked to 160MHz

• Flash Memory:

  • Usually comes with 4MB SPI Flash memory for program storage.

• WiFi Connectivity:

  • Integrated IEEE 802.11 b/g/n Wi-Fi

  • Station, access point, and both TCP/IP and UDP protocols supported

• GPIO Pins:

  • General-purpose input/output pins for interfacing with external hardware.

  • Most NodeMCU boards offer around 9-11 usable GPIO pins.

  • Pins are typically 3.3V tolerant.

• Analog Inputs:

  • Usually equipped with one or more analog input pins (ADC), typically 10-bit resolution.

  • ADC pins are commonly labeled as A0, A1, etc.

• Digital I/O Pins:

  • GPIO pins can be used for digital input or output.

• Serial Communication:

  • Supports serial communication (UART) for debugging and communication with other devices.

  • Typically has one hardware serial port (Serial).

• USB Interface:

  • Micro USB port for power supply and serial communication with the computer.

• Reset Button:

  • For resetting the microcontroller.

• Boot Mode Selection:

  • Some boards may have DIP switches or jumpers for selecting boot modes.

• Power Supply:

  • Can be powered via USB or external power supply (3.3V).

  • Some boards have onboard voltage regulators for stable operation.

• LED Indicators:

  • Onboard LEDs for indicating power and status.

• Programming Interface:

  • Can be programmed using the Arduino IDE with the ESP8266 board package installed.

• Operating Temperature:

  • Typically rated for 0°C to 70°C.

• Dimensions:

  • Physical dimensions vary but are typically small and compact, suitable for IoT applications.