Nodemcu In Arduino Ide | Step 13: Adding Libraries

Prerequisites: Arduino IDE Installed

Before starting this installation procedure, you need to have Arduino IDE installed on your computer. There are two versions of the Arduino IDE you can install: version 1 and version 2.

You can download and install Arduino IDE by clicking on the following link: arduino.cc/en/Main/Software

Which Arduino IDE version do we recommend? At the moment, there are some plugins for the ESP32 (like the SPIFFS Filesystem Uploader Plugin) that are not yet supported on Arduino 2. So, if you intend to use the SPIFFS plugin in the future, we recommend installing the legacy version 1.8.X. You just need to scroll down on the Arduino software page to find it.

If you’ll use Arduino 2, you can follow this tutorial instead:

If later on, you need to install the SPIFFS plugin, you can install Arduino 1.8.X and have both versions installed on your computer.

Do you need an ESP32 board? You can buy it here.

Troubleshooting

If you try to upload a new sketch to your ESP8266 and you get this error message “esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header“. It means that your ESP8266 is not in flashing/uploading mode.

Having the right board name and COM port selected, follow these steps:

• Hold-down the “BOOT/FLASH” button in your ESP8266 development board
• Press the “Upload” button in the Arduino IDE to upload your sketch:

• When you see the “Connecting….” message in your Arduino IDE, release the finger from the “BOOT/FLASH” button
• After that, you should see the “Done uploading” message

Your ESP8266 should have the new sketch running. Press the “ENABLE/RESET” button to restart the ESP8266 and run the new uploaded sketch.

Testing the Installation

Plug the ESP32 board to your computer. With your Arduino IDE open, follow these steps:

1. Select your Board in Tools > Board menu (in my case it’s the DOIT ESP32 DEVKIT V1)

2. Select the Port (if you don’t see the COM Port in your Arduino IDE, you need to install the CP210x USB to UART Bridge VCP Drivers):

3. Open the following example under File > Examples > WiFi (ESP32) > WiFiScan

4. A new sketch opens in your Arduino IDE:

5. Press the Upload button in the Arduino IDE. Wait a few seconds while the code compiles and uploads to your board.

6. If everything went as expected, you should see a “Done uploading.” message.

7. Open the Arduino IDE Serial Monitor at a baud rate of 115200:

8. Press the ESP32 on-board Enable button and you should see the networks available near your ESP32:

Configure and Setup Arduino IDE To Use the NodeMCU ESP8266

The NodeMCU offers a variety of development environments, including compatibility with the Arduino IDE (Integrated Development Environment). The NodeMCU/ESP8266 community took the IDE selection a step further by creating an Arduino add-on. If you’re just getting started programming the ESP8266 or even an established developer, this is the highly recommended environment. Visit our dedicated page on setting up and configuring the Arduino IDE for a NodeMCU ESP8266.

Step 1: Control an LED From Web Browser

In this blog, we will see How to “Turn On and Turn Off” an LED that has connected to the Esp8266, the esp8266 has programmed from Arduino IDE to control the LED.We will connect the Esp8266 to the Wi-Fi router using SSID and password of our Home network Wifi , where the esp8266 connect to our wifi and create a webserver, which can be accessed by looking through the serial Monitor of the Arduino window or you can also log into your Wifi router and check for the list of clients connected to your Wi-Fi router.Here’s a window which explains the step by step procedure to connect the Esp8266 to the Wi-fi server and How to access the Webpage and control the LED connected to the Esp8266

For the above video I have used NodeMcu, you can use any type of Esp8266 to make this thing work in your web browser.

look for the mapping of pins in with your Esp8266 vendor, if the program not working properly for you , the fault will be with the pin mapping functionalities, Here I used the D7 pin which mapped to 13th pin when program from the Arduino IDE.

Connect your Esp8266 to Arduino IDE and Select the correct COM Port and board type and

upload the program.

Note change the SSID to your WiFi Name and password to your Wifi password. if you forget to change it , esp8266 will not connect connect your wifi.

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If everything completed you can turn to your serial monitor and check for the ip address that your devices has connected to . you will presented with an serial monitor that look exactly to the picture below.

if you like the above tutorial and if you want try out with cool projects you can also check this link here , that’s the amazon book link where you can use that book to make IoT with Esp8266 or Nodemcu, that books gives you basic coverage on how to do simple things and get yourself started with arduino and goes on developing projects like sending data to webserver and creating a webserver, uploading and controlling data from a webpage, how to interface TFT LCD and I2C devices and many more things can find on the link.

Add NodeMCU Library to the IDE

The IDE needs to know details about the NodeMCU module. This information is available in a configuration file which will is added to the IDE.

Select the File…Preferences

This will open up a new window, where we set the IDE to point to the configuration file.

In the field “Additional Boards Manager URLs:” enter

http://arduino.esp8266.com/stable/package_esp8266com_index.json

Select the OK button at the bottom of the window when the link address is entered.

Prerequisites: Arduino IDE Installed

Before starting this installation procedure, make sure you have the latest version of the Arduino IDE installed in your computer. If you don’t, uninstall it and install it again. Otherwise, it may not work.

Having the latest Arduino IDE software installed from arduino.cc/en/Main/Software, continue with this tutorial.

Do you need an ESP8266 board? You can buy it here.

Prerequisites: Arduino IDE 2.0 Installed

Before proceeding make sure you have Arduino IDE 2.0 installed on your computer.

Go to the Arduino website and download the version for your operating system.

• Windows: run the file downloaded and follow the instructions in the installation guide.
• Mac OS X: copy the downloaded file into your application folder.
• Linux: extract the downloaded file, and open the arduino-ide file that will launch the IDE.

If you have doubts, you can go to the Arduino Installation Guide.

Do you need an ESP8266 board? You can buy it here.

Recommended reading: Best ESP8266 Boards Comparison

Testing the Installation

To test the ESP8266 add-on installation, let’s see if we can blink an LED with the ESP8266 using the Arduino programming language.

Parts Required

Here’s the hardware that you need to complete this project:

If you’re using an ESP8266-01, you also need an FTDI programmer to upload code.

You can use the preceding links or go directly to MakerAdvisor.com/tools to find all the parts for your projects at the best price!

Introduction: How to Program NodeMCU on Arduino IDE

The Osoyoo NodeMCU comes pre-programmed with Lua interpretter, but you don’t have to use it! Instead, you can use the Arduino IDE which may be a great starting point for Arduino lovers to familiarize themselves with the technologies surrounding the IoT.Note that when you use the NodeMCU board with the Arduino IDE ,it will write directly to the firmware, erasing the NodeMCU firmware.So if you want to back to Lua SDK,use the “flasher” to re-install the firmware.

The NodeMCU programming can be as easy as in Arduino,the main difference is the distribution of pins in the nodemcu board.Following below operations and enjoy your first NodeMCU & Arduino IDE travel!

Install ESP8266 NodeMCU Add-on in Arduino IDE

To install the ESP8266 board in your Arduino IDE, follow these next instructions:

1. In your Arduino IDE 2.0, go to File > Preferences.

2. Copy and paste the following line to the Additional Boards Manager URLs field.


http://arduino.esp8266.com/stable/package_esp8266com_index.json


Note: if you already have the ESP32 boards URL, you can separate the URLs with a comma, as follows:


http://arduino.esp8266.com/stable/package_esp8266com_index.json, https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json


3. Open the Boards Manager. You can go to Tools > Board > Boards Manager… or you can simply click the Boards Manager icon in the left-side corner.

4. Search for ESP8266 and press the install button for esp8266 by ESP8266 Community.

That’s it. It should be installed after a few seconds.

Step 3: Upload DS18b20 Temperature Sensor Data to Thingspeak From Esp8266 (nodemcu)

Hello all in this tutorial you will know how to use Ds18b20 Temperature data to thingspeak.com, you can follow above fritzing circuit diagram to control the Ds18b20 temperature sensor, This sensor follows one wire protocol which means you can connect many sensors as you want to the single pin and access temperature data calling the sensor by address.check the video below on how to work with this sensor and also proof of code working .

There is no much work to get work with this sensor, as there are plenty of example library that already available in the internet which anyone can make use and get started to work with this sensor.

Test the below code to know check whether you can get reading from the temperature sensor with ESP8266 or Nodemcu

if you get any error , make sure you have downloaded library for Ds18b20 Temperature sensor.

copy paste above code to your Arduino IDE and upload to your ESP8266 or Nodemcu if you are not sure about how to do this please check the video about to know how things work, if you don’t know yet to search search on this blog for getting started with Esp8266 in Arduino IDE.

below you can see the code for sending temperature data to thingspeak.com from Esp8266 or Nodemcu to do this you need have thingspeak api key which can get easily by registering to the website.

change SSID and password to your router password and also update the Nodemcu api key.

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if you like the above tutorial and if you want try out with cool projects you can also check this link here , that’s the amazon book link where you can use that book to make IoT with Esp8266 or Nodemcu, that books gives you basic coverage on how to do simple things and get yourself started with arduino and goes on developing projects like sending data to webserver and creating a webserver, uploading and controlling data from a webpage, how to interface TFT LCD and I2C devices and many more things can find on the link.

Easily Configure Arduino IDE for NodeMCU

Introduction: Quick Start to Nodemcu (ESP8266) on Arduino IDE

Thanks to the guys those who ported the Esp8266 into Arduino IDE and helping all the arduino users happy to the core. Yes it’s been long time since they did and this post is bit later to thanks the good hearted work by the guys out there.

Lets begin with Installing the Esp8266 support for the Arduino and see how to blink an LED ( the hello world in the electronics )

check out the video to know step by step tutorial on how to get started with our favourite chip Esp8266

Firstly open the Arduino IDEGo to files and click on the preference in the Arduino IDE

copy the below code in the Additional boards Managerhttp://arduino.esp8266.com/stable/package_esp8266com_index.jsonclick OK to close the preference Tab.

After completing the above steps , go to Tools and board, and then select board Manager

Navigate to esp8266 by esp8266 community and install the software for Arduino.

Once all the above process been completed we are read to program our esp8266 with Arduino IDE.

For this example I have used NodeMCU esp8266 and if you are using any other vendor wifi chips or generic wifi module please check with the esp8266 Pin mapping which is very essential to make things works.

The reason why I used D7 pin for this example is , I uploaded the basic blink program that comes with the examples program in the arduino IDE which is connected with 13 pin of arduino. The 13th pin is mapped into D7 pin of NodeMCU.

go to board and select the type of esp8266 you are using. and select the correct COM port to run the program on your esp8266 device.

void setup() { // initialize digital pin 13 as an output. pinMode(13, OUTPUT); }

// the loop function runs over and over again forever void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }

upload the program and see the results.

if you like the above tutorial and if you want try out with cool projects you can also check this link here , that’s the amazon book link where you can use that book to make IoT with Esp8266 or Nodemcu, that books gives you basic coverage on how to do simple things and get yourself started with arduino and goes on developing projects like sending data to webserver and creating a webserver, uploading and controlling data from a webpage, how to interface TFT LCD and I2C devices and many more things can find on the link.

Code To Test NodeMCU Functionality

This is a simple sketch that will flash the LED on pin D0 every 1/4 second (250mS). The routine will also have the NodeMCU send a small text message over the communication channel and will display it in the Serial Monitor.

Copy the code below and paste it into a blank sketch in the IDE.

10 11 12 13

void setup() { pinMode(D0, OUTPUT); // Blue LED Beside CP2102 Serial.begin(9600); void loop() { Serial.println(“Welcome To PCBoard.ca”); // display message on console digitalWrite(D0, HIGH); delay(500); digitalWrite(D0, LOW); delay(250);

After entering the sketch, press the right-facing arrow to Compile and Upload the code to the NodeMCU. You will be prompted to save the sketch, name the sketch “blinky” and press Save. The saving, compiling, and uploading of the sketch to the NodeMCU may take a minute or two depending on the speed of your system.

After the compile and upload are complete, the LED on the NodeMCU will begin to blink. In some situations, the RST (reset) may need to be pressed to reset the NodeMCU after uploading.

Press the Serial Monitor icon (located on the upper right side of the screen). This will display the welcome message which is generated on the NodeMCU.

The Serial Monitor will display text as the NodeMCU generates it.

If you do not see text, check the terminal speed box located at the bottom of the window (showing in Red). It must be set for 9600 to display text coming from the NodeMCU.

Arduino IDE NodeMCU Configuration Complete

This completes the configuration of the Arduino IDE to recognize and generate code for the NodeMCU. Coding syntax for the NodeMCU in the IDE follows the Arduino framework, including pin designations and communications ports.

Below is a coding example for the NodeMCU which flashes an onboard LED and also has allows the NodeMCU to generate a text that can be seen through the serial monitor.

Download and Install the Arduino IDE

The Arduino IDE (Integrated Development Environment) is available for no cost. You can visit the Arduino site (www.arduino.cc), which is an excellent resource for all-things Arudino.

From there, you will want to download the latest Arduino IDE (https://www.arduino.cc/en/Main/Software)

After downloading the IDE, proceed to install using the default setup options.

Step 2: Control Electrical Devices From User Web Browser Using Esp8266 Nodemcu

Make sure all the devices are connected to the same router, this example doesn’t include a port forwarding function which will not allow us to control the device from outside the home network.

Components that you need for completing this project are very simple, you need to have an esp8266 wifi module and a relay, make sure you buying a 5v relay which very easy to use with esp chips doesn’t require external supply too. we can make use of the Vin pin of the nodemcu or if you are using a generic chip, you need to supply an external 5v to the relay.

For this example project I have used only 2 relay circuit, but the actual program wrote for connecting four relay module.

You can check the above video on how this thing works and how to connect your browser to the ip address returned from esp and all the details are included in this video.

Copy the below arduino code and paste into your Arduino IDE and upload the program to your nodemcu or any other esp devices that you are using, make sure to choose the correct port and device name from the board. also don’t forget to change the SSID and password to your Wi-fi settings.

This program for the esp8266 wrote to return the status of the device , which will in turn notify us with the device state in the browser which will also make the user to know which device has currently turned on or off.

Copy the above code and complete the process. Share and let others know about this tiny chip which can do dozens of magic.

if you like the above tutorial and if you want try out with cool projects you can also check this link here , that’s the amazon book link where you can use that book to make IoT with Esp8266 or Nodemcu, that books gives you basic coverage on how to do simple things and get yourself started with arduino and goes on developing projects like sending data to webserver and creating a webserver, uploading and controlling data from a webpage, how to interface TFT LCD and I2C devices and many more things can find on the link.

Testing the Installation

To test the ESP8266 add-on installation, we’ll upload a simple code that blinks the on-board LED (GPIO 2).

Copy the following code to your Arduino IDE:


/********* Rui Santos Complete project details at https://RandomNerdTutorials.com/vs-code-platformio-ide-esp32-esp8266-arduino/ *********/ #include

#define LED 2 void setup() { // put your setup code here, to run once: Serial.begin(115200); pinMode(LED, OUTPUT); } void loop() { // put your main code here, to run repeatedly: digitalWrite(LED, HIGH); Serial.println("LED is on"); delay(1000); digitalWrite(LED, LOW); Serial.println("LED is off"); delay(1000); }



Uploading the Sketch

On the top drop-down menu, select the “unknown” board. A new window, as shown below, will open.

You should select your ESP8266 board model and the COM port. In our example, we’re using the NodeMCU 1.0 board. Click OK when you’re done.

Now, you just need to click on the Upload button.

After a few seconds, the upload should be complete.

The ESP8266 on-board LED should be blinking every second.

Serial Monitor

You can click on the Serial Monitor icon to open the Serial Monitor tab.

That’s it! You’ve installed the ESP8266 Boards successfully in Arduino IDE 2.0.

Installing ESP32 Add-on in Arduino IDE

To install the ESP32 board in your Arduino IDE, follow these next instructions:

1. In your Arduino IDE, go to File> Preferences

2. Enter the following into the “Additional Board Manager URLs” field:

   https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

   Then, click the “OK” button:

   Note: if you already have the ESP8266 boards URL, you can separate the URLs with a comma as follows:

   https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json

3. Open the Boards Manager. Go to Tools > Board > Boards Manager…

4. Search for ESP32 and press install button for the “ESP32 by Espressif Systems“:

5. That’s it. It should be installed after a few seconds.

Defining The Communications Port

The communications port must be defined to allow the Arduino IDE to communicate with the NodeMCU. Connect your PC by a USB cable to the NodeMCU.

After connection, the PC will provide power to the NodeMCU. The communication port used will vary by system.

To determine which communications port has been selected on your system, select the Tools…Port menu option.

The options list will present the available COM ports. For our example, our NodeMCU added COM6 and will be selected by clicking on COM6.

Shown below the Board selection, are several NodeMCU settings. These include CPU Frequency, Flash Size, and also Upload Speed. If Upload Speed is not set to 115200, select the speed of 115200 from the options from that item. The speed of 115200 is the optimum transfer rate that is used to transfer data to and from the NodeMCU.

Step 13: Adding Libraries

In case you need to add the libraries to the Arduino follow the example path is shown in the figure i.e C:\Users\Armtronix\Documents\Arduino\libraries. Enter into the libraries folder then paste the file in that as shown below.

There is a new Arduino IDE—Arduino IDE 2.0 (beta version). In this tutorial, you’ll learn how to install the ESP8266 boards in Arduino IDE 2.0 and upload code to the board. This tutorial is compatible with Windows, Mac OS X, and Linux operating systems.

Accordingly to the Arduino website: “The Arduino IDE 2.0 is an improvement of the classic IDE, with increased performance, improved user interface and many new features, such as autocompletion, a built-in debugger and syncing sketches with Arduino Cloud“.

If you want to install the ESP8266 boards on the “classic” Arduino IDE, follow the next tutorial instead:

If you prefer programming the ESP8266 using VS Code + PlatformIO, go to the following tutorial:

• Getting Started with VS Code and PlatformIO IDE for ESP32 and ESP8266 (Windows, Mac OS X, Linux Ubuntu)

You might also like reading the ESP32 Guide: Installing ESP32 Board in Arduino IDE 2.0 (Windows, Mac OS X, Linux)

Wrapping Up

This is a quick guide that illustrates how to prepare your Arduino IDE for the ESP8266 on a Windows PC, Mac OS X, or Linux computer.

Next, you might want to read: Getting started with ESP8266.

That’s it, you’re ready to start building your own IoT projects with the ESP8266!

• Home Automation Using ESP8266
• ESP8266 Web Server Step-by-step
• ESP8266 Wi-Fi Button – DIY Amazon Dash Button Clone
• ESP8266 Daily Task – Publish Temperature Readings to ThingSpeak
• ESP8266 Weather Forecaster
• Nextion Display with ESP8266 – Touchscreen User Interface for Node-RED
• More ESP8266 projects…

Do you have any questions? Leave a comment below!

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