NodeMcu WiFi Development Board - ESP8266

Features:

• Wi-Fi Module: ESP-12E module similar to ESP-12 module but with 6 extra GPIOs
• USB: Micro USB port for power, programming and debugging
• Headers: 2x 2.54mm 15-pin header with access to GPIOs, SPI, UART, ADC, and power pins
• Miscellaneous: Reset and flash buttons
• Dimensions: 49 x 24.5 x 13mm
• Wi-Fi Module: ESPp-12E Module Similar To ESP-12 Module But With 6 Extra Gpios.
• USB: Micro USB Port For Power, Programming, And Debugging.
• Headers: 2X 2.54mm 15-Pin Header With Access To GPIOs, SPI, UART, ADC, And Power Pins.
• Dimensions: 49 X 24.5 X 13mm
• Esp8266 cp2102 nodemcu  esp-12e wifi serial wireless module
• Built-in micro-USB, with flash and reset switches, easy to program
• Full I/o port and wireless 802.11 supported, direct download no need to reset
• Arduino compatible works great with the latest Arduino ide/mongoose IoT/micropython
• Weight: 8.5 gms

•••••••••••••••
INSIDE BOX
•••••••••••••••

NodeMCU board comes inside an antistatic packet with hard foam to protect pins.

Board Dimensions: L x B x H, 49 x 25 x 13mm (including pins, w/o header pins height is just 4mm)
Weight: 8g
1. Breadboard friendly.
2. Pins come soldered & not separate.
3. Neatly made, lightweight and compact board.
4. Arduino compatible & easy to program.
5. CP2102 chip for USB to UART. The old version had a CH340 chip.
6. Full Blynk support (Believe me, it will mean a lot to you).
7. 4 screw holes at each corner of the board for easy installation.

•••••••••••••••••••••••••••••••••••••••••••••
SETTING IT UP WITH ARDUINO IDE
•••••••••••••••••••••••••••••••••••••••••••••
1. Download the latest Arduino IDE from the official site as per your system configuration.
2. Install the software in the preferred location.
3. It will also install necessary USB drivers including one for our board i.e. CP2102 USB to UART bridge.
4. Visit ESP8266’s GitHub page (Google it) and copy the board manager link from there. (Screenshot attached)
5. Open Arduino IDE. By default Arduino does not come with ESP8266 support. So we need to manually specify the link for ESP8266.
6. Go to File → Preferences and paste above ESP8266 board manager link under “Additional Boards Manager URLs”. Click on ok.
7. Now go to Tools → Board → Board Manager & search for esp8266 by ESP8266 community.
8. Click on install. It will download several related board definitions and install them. Once the installation is successful, close the window.
9. Now when you will go to Tools → Boards, you will find all of the ESP8266 related boards listed.

••••••••••••••••••••••••••••••••••••••••••••••••
GETTING READY FOR PROGRAMMING
••••••••••••••••••••••••••••••••••••••••••••••••
1. Open Arduino IDE
2. Go to Tools → Boards and choose your board. Here in our case, it’s NodeMCU 1.0 (ESP-12E Module)
3. Now in Tools → Port, choose communication port on which board is connected. To find it go to windows device manager & under ports (com & LPT) locate CP210x to UART Bridge. In my case it’s COM3.
4. Specify upload speed in Tools → Upload Speed. 115200 works well in general and with large code sketches also. While 9600 will also work but may fail in some large sketches & is very slow.
5. Leave other options in Tools as such.
6. You are all set now. Code a sketch, upload it to the board via Sketch → Upload.
7. While sketch or code is getting uploaded to the board, blue LED near Wi-Fi antenna blinks continuously indicating transfer.
8. Enjoy the endless world of ESP8266.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLINK ON BOARD LED (Initial check of the board)
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••

There’s a program to blink onboard led in examples after you add ESP board in the previous step.

1. Open Arduino
2. Go to → File → Examples → ESP8266 → Blink
3. Go to → Sketch → Upload (indicator led will blink while it’s being uploaded)
4. Soon after the sketch is uploaded, other led near USB port will start blinking as per delay in sketch/code.

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
BLYNK SUPPORT & EXAMPLE TO SWITCH ON/OFF ONBOARD LED USING SMARTPHONE
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

Blynk app is free to use with 1800 free recyclable energy with each account, which is more than sufficient for general projects or unlimited energy if the local server is used. Energy is used by each widget you add to the project. You can always purchase more energy for bigger projects or recycle used ones.

Visit the Blynk website and go to the “getting started” page. Follow the steps i.e.

1. Install the Blynk app from the store & register.
2. Create a project & get an auth token.
3. Download library zip from the link provided.
3. Install the Blynk library manually by copying unzipped folders to the mentioned paths of your sketchbook folder for Arduino IDE.
4. After libraries are installed, another entry with Blynk is created in examples.
5. Open Arduino IDE & Go to → File → Examples → Blynk → Boards_WiFi → ESP8266_Standalone.
6. Enter the auth token from email, SSID, and password of your Wi-Fi in the sketch.
7. Upload sketch to board.
8. Now in-app add two buttons to project created above, by clicking on + and selecting the button
9. Open each button and specify D0 & D4 pin with 1 → 0.
10. Click on the Play button on top.
11. Press buttons & your onboard LEDs will switch on-off.
11. Enjoy the endless world of IoT and automation. Control everything from your smartphone via the Blynk server or local server.