WiFi module ESP8266 Wemos NodeMCU V3 32Mb - 11 GPIO, ADC, PWM

Wi-fi module based on ESP8266 system. It has uploaded the NodeMCU software which provides the programming using the Lua scripting language. The system has 11 GPIO pins (each of them can be controlled by the PWM signal), I2C bus, 1-Wire, analog-to-digital converter. In addition, the board has the USB-UART converter which allows for the programming directly through the USB port using the Arduino IDE environment.

Module dimensions: 58 x 25 mm, pins pitch is 2.54 mm

Lua is a scripting language that can work independently or as an extension of the capabilities of other applications. It was implemented as a library of C language. It has a simple code, high performance and the possibility to transfer between platforms. Details are on the Lua home page.

• The module is based on ESP8266 system
• Power supply:
  • pin 3.3 V: 3.3 V
  • VIN: from 4.5 V to 9 V
  • microUSB: 5 V
• Working voltage: 3.3 V
• Clock frequency: 800 MHz / 1600 MHz
• Flash memory: 32 Mb (4 MB)
• Interfaces:
  • 11 GPIO
  • 10 PWM
  • UART
  • SPI
  • I2C
  • 1-Wire
  • Analog
• Built-in microUSB connector
• Converter of USB-UART CH340
• Pins pitch: 2.54 mm
• Module dimensions: 58 x 25 mm

• Wi-fi ESP8266 Wemos module
• 2 x goldpin strap of 15 pin, 2.54 mm - male

• The main NodeMcu project page on the GitHub
• The home page of the Lua language
• SUPLA - Poish open source project based on ESP8266
• The ESplorer Program
• Luatool tool 
• Arduino and ESP8266
• Sample program:
  • Online temperature and humidity sensor
  • Scanner of wi-fi network
  • Control of electric devices over the network
  • Recording the values of temperature and humidity for the Thingspeak.com

• Tutorial for MicroPython