Based on the ESP8266 Wi-Fi transceiver module and the CP2102 USB-UART converter chip, this compact development and prototype board (Open Source) is ideal for IoT (Internet of Things) applications. The Wi-Fi module is compatible with the standard 802.11 b / g / na 2.4 GHz, has integrated TCP / IP stack, output power of 19.5 dBm, data interface (UART / HSPI / I2C / I2S / Ir Remote Control GPIO / PWM) and antenna on PCB. It also has a micro USB connector and a reset button. Programmable with IDE Arduino, it includes interpreters for processing commands for languages such as LUA.

click on the image to enlarge

• Model: ESP8266-12E
• Wireless Standard: 802.11 b / g / n
• Frequency range: 2.4 GHz - 2.5 GHz (2400M-2483.5M)
• Wi-Fi mode: Station / SoftAP / SoftAP + station
• Stack: Integrated TCP / IP
• Output power: 19.5dBm in 802.11b mode
• Data interface: UART / HSPI / I2C / I2S / Ir Remote Control GPIO / PWM
• Supports security mode: WPA / WPA2
• Encryption: WEP / TKIP / AES
• Power supply: 4.5 VDC to 9 VDC (VIN) or via micro USB connector
• Consumption: with Wi-Fi in continuous transmission approximately 70 mA (200 mA MAX) - in standby <200μA
• Working temperature: from -40 ° C to + 125 ° C
• Dimensions (mm): 48.5x25.7x13
• Weight: 8 grams

Warning! on the market there are various versions of the NODEMCU module, this guide is specific to the module sold by us.

To program this card you will need:

• USB micro-USB cable (see related products) that allows data transmission
• CP2102 driver
• IDE Arduino (the module has been tested with the Arduino IDE 1.8.5)
• ESP8266WiFi management library

After installing the CP2102 driver, start the Arduino IDE: Click on "File> Settings" to open the "Settings" window.

Enter this URL "http://arduino.esp8266.com/stable/package_esp8266com_index.json" in the lower text box of the window ("Additional URL for the card manager"). Click OK to continue.

After doing this first step we can install the card, clicking from the main screen of the IDE "Tools> Card> Card Manager ..." will open the window "Card Manager"

At this point in the "Filter the search" bar, type "esp8266", if you have done the previous steps correctly you will find the option "Install" available. (It is recommended to install the latest version available).

After installing the card (about 150 MB) you can switch to the configuration.

In the IDE main screen, click "Tools> Card> NodeMCU 1.0 (ESP-12E Module).

Click again on "Tools> Upload Speed> 115200".

After doing this you will have finished the configuration and installation of the card and you are ready to program!

• ESP8266WiFi.zip
• Schematic & PCB, Source Code, API Documents