Настройка Arduino IDE для NodeMCU
NodeMCU — это популярная и очень удобная платформа на основе WiFi модуля ESP-8266. По сути, NodeMCU представляет собой плату, на которой размещены: сам модуль ESP-8266, стабилизатор напряжения и USB-UART мост.
Существуют разные версии ESP8266, но почти для всех используется один и тот же способ настройки среды разработки Arduino IDE. О том, как, собственно, сделать эту настройку и пойдет речь в статье.
Настройка ESP8266 в Arduino IDE
Для этой процедуры необходим доступ в интернет, так как Arduino IDE требуется скачать дополнительные пакеты.
В поле Дополнительные ссылки для Менеджера плат пишем такую ссылку:
В самом низу будет нужный нам пакет «esp8266 by ESP8266
Жмём кнопку Установить.
Спустя некоторое время пакет скопирует необходимые файлы и в Arduino IDE можно будет выбрать нужную нам плату.
Подключение светодиода к NodeMCU
В качестве примера, подключим к NodeMCU светодиод и напишем программу, которая будет включать и выключать его с периодом в одну секунду.
Для начала посмотрим на схемы выводов NodeMCU.
Плата имеет 13 цифровых выводов, обозначенных аббревиатурой GPIO. Можем подключить светодиод к любому из них. Пусть это будет вывод D7 (он же GPIO13).
Принципиальная схема
Внешний вид макета
NodeMCU работает с напряжением 3.3 Вольта, так что для подключения красного светодиода нам потребуется использовать токозадающий резистор с сопротивлением 65 Ом. Но подойдет и распространенный резистор 200 Ом.
Загрузка программы на NodeMCU с помощью Arduino IDE
Теперь, когда Arduino IDE умеет работать с NodeMCU и светодиод подключен, попробуем загрузить первую программу.
В меню «Инструменты/Плата» выбираем NodeMCU 1.0.
const byte ledPin = 13; void setup() < pinMode(ledPin, OUTPUT); >void loop()
Загружаем программу на NodeMCU, смотрим на светодиод ��
Заключение
В следующей статье поговорим о том, как создать простейший веб-сервер на базе NodeMCU (да и вообще на любой ESP8266), который позволит нам через WiFi управлять любыми устройствами.
How to Program NodeMCU on Arduino IDE
Introduction: How to Program NodeMCU on Arduino IDE
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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!
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Step 1: Connect Your NodeMCU to the Computer
Use the USB cable to connect your NodeMCU to the computer,you will see the blue onboard LED flicker when powered up, but they will not stay lit.
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Step 2: Install the COM/Serial Port Driver
In order to upload code to the ESP8266 and use the serial console, connect any data-capable micro USB cable to ESP8266 IOT Board and the other side to your computer’s USB port.
The new version NodeMCUv1.0 comes with the CP2102 serial chip,you can download and install the driver from:https://www.silabs.com/products/development-tools/. . The NodeMCUv0.9 comes with the CH340 serial chip,you can download and install the driver from:https://github.com/nodemcu/nodemcu-devkit/tree/mas.
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Step 3: Install the Arduino IDE 1.6.4 or Greater
Download Arduino IDE from Arduino.cc (1.6.4 or greater) – don’t use 1.6.2! You can use your existing IDE if you have already installed it. You can also try downloading the ready-to-go package from the ESP8266-Arduino project, if the proxy is giving you problems
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Step 4: Install the ESP8266 Board Package
Enter http://arduino.esp8266.com/stable/package_esp8266. into Additional Board Manager URLs field in the Arduino v1.6.4+ preferences (Open Arduino IDE–>File–>Perferences–>Settings). Enter the link and click “OK” to save your changes. Next, use the Board Manager to install the ESP8266 package Enter the Boards Manager and find the board type as below: Scroll the Broads Manager screen down to the bottom, you will see A module called “esp8266 by esp8266 Community” (see following picture), select the latest version and click “Install“. The ESP8266 package has benn installed successfully. Note: You’d better close the Arduino IDE and restart it again.
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Step 5: Setup ESP8266 Support
When you’ve restarted, select NodeMCU 0.9 (or NodeMCU 1.0) from the Tools->Board dropdown Config the Board menu and choose the right Port for your device. CPU Frequency：80MHz,Flash Size：4M（3M SPIFFS）,Upload Speed：115200 Now just proceed as the Arduino: Start your sketching! Note: 115200 baud upload speed is a good place to start – later on you can try higher speeds but 115200 is a good safe place to start.
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10 Comments
Reply Upvote
cant find nodemcu anywhere in the board manager
Question 5 years ago on Step 5
Answer Upvote
I am trying to install nodemcu on arduino. I am getting the following error: please help
package_index.json file signature verification failed
java.lang.RuntimeException: cc.arduino.contributions.SignatureVerificationFailedException: package_index.json file signature verification failed
Caused by: cc.arduino.contributions.SignatureVerificationFailedException: package_index.json file signature verification failed
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esp8266 / Arduino Public
ESP8266 core for Arduino
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README.md
Arduino core for ESP8266 WiFi chip
- Latest release documentation
- Current «git version» documentation
- Install git version (sources)
Arduino on ESP8266
This project brings support for the ESP8266 chip to the Arduino environment. It lets you write sketches, using familiar Arduino functions and libraries, and run them directly on ESP8266, with no external microcontroller required.
ESP8266 Arduino core comes with libraries to communicate over WiFi using TCP and UDP, set up HTTP, mDNS, SSDP, and DNS servers, do OTA updates, use a file system in flash memory, and work with SD cards, servos, SPI and I2C peripherals.
- Installing options:
- Using Boards Manager
- Using git version
- Using PlatformIO
- Building with make
Installing with Boards Manager
Starting with 1.6.4, Arduino allows installation of third-party platform packages using Boards Manager. We have packages available for Windows, Mac OS, and Linux (32 and 64 bit).
- Download and install Arduino IDE 1.x or 2.x
- Start Arduino and open the Preferences window
- Enter https://arduino.esp8266.com/stable/package_esp8266com_index.json into the File>Preferences>Additional Boards Manager URLs field of the Arduino IDE. You can add multiple URLs, separating them with commas.
- Open Boards Manager from Tools > Board menu and install esp8266 platform (and don’t forget to select your ESP8266 board from Tools > Board menu after installation).
Boards manager link: https://arduino.esp8266.com/stable/package_esp8266com_index.json
Using git version
Also known as latest git or master branch.
- When using Arduino IDE, follow our instructions here.
- When using PlatformIO, refer to platformio/espressif8266 platform documentation.
PlatformIO is an open source ecosystem for IoT development with a cross-platform build system, a library manager, and full support for Espressif (ESP8266) development. It works on the following popular host operating systems: macOS, Windows, Linux 32/64, and Linux ARM (like Raspberry Pi, BeagleBone, CubieBoard).
- What is PlatformIO?
- PlatformIO IDE
- PlatformIO Core (command line tool)
- Advanced usage — custom settings, uploading to SPIFFS, Over-the-Air (OTA), staging version
- Integration with Cloud and Standalone IDEs — Cloud9, Codeanywhere, Eclipse Che (Codenvy), Atom, CLion, Eclipse, Emacs, NetBeans, Qt Creator, Sublime Text, VIM, Visual Studio, and VSCode
- Project Examples
Building with make
makeEspArduino is a generic makefile for any ESP8266 Arduino project. Using make instead of the Arduino IDE makes it easier to do automated and production builds.
Issues and support
ESP8266 Community Forum is a well-established community for questions and answers about Arduino for ESP8266. Stackoverflow is also an alternative. If you need help, have a «How do I. » type question, have a problem with a 3rd party library not hosted in this repo, or just want to discuss how to approach a problem, please ask there.
If you find the forum useful, please consider supporting it with a donation.
If you encounter an issue which you think is a bug in the ESP8266 Arduino Core or the associated libraries, or if you want to propose an enhancement, you are welcome to submit it here on Github: https://github.com/esp8266/Arduino/issues.
Please provide as much context as possible, as well as the information requested in the issue template:
- ESP8266 Arduino core version which you are using (you can check it in Boards Manager)
- your sketch code; please wrap it into a code block, see Github markdown manual
- when encountering an issue that happens at run time, attach the serial output. Wrap it into a code block, just like the code.
- for issues that happen at compile time, enable verbose compiler output in the IDE preferences, and attach that output (also inside a code block)
- ESP8266 development board model
- IDE settings (board choice, flash size)
- etc
For minor fixes of code and documentation, please go ahead and submit a pull request. A gentle introduction to the process can be found here.
Check out the list of issues that are easy to fix — easy issues pending. Working on them is a great way to move the project forward.
Larger changes (rewriting parts of existing code from scratch, adding new functions to the core, adding new libraries) should generally be discussed by opening an issue first. PRs with such changes require testing and approval.
Feature branches with lots of small commits (especially titled «oops», «fix typo», «forgot to add file», etc.) should be squashed before opening a pull request. At the same time, please refrain from putting multiple unrelated changes into a single pull request.
License and credits
Arduino IDE is developed and maintained by the Arduino team. The IDE is licensed under GPL.
ESP8266 core includes an xtensa gcc toolchain, which is also under GPL.
Esptool.py was initially created by Fredrik Ahlberg (@themadinventor, @kongo), and is currently maintained by Angus Gratton (@projectgus) under GPL 2.0 license.
Espressif’s NONOS SDK included in this build is under Espressif MIT License.
ESP8266 core files are licensed under LGPL.
SPI Flash File System (SPIFFS) written by Peter Andersson is used in this project. It is distributed under the MIT license.
umm_malloc memory management library written by Ralph Hempel is used in this project. It is distributed under the MIT license.
SoftwareSerial library and examples written by Peter Lerup. Distributed under LGPL 2.1.
BearSSL library written by Thomas Pornin, built from https://github.com/earlephilhower/bearssl-esp8266, is used in this project. It is distributed under the MIT License.
LittleFS library written by ARM Limited and released under the BSD 3-clause license.
uzlib library written and (c) 2014-2018 Paul Sokolovsky, licensed under the ZLib license (https://www.zlib.net/zlib_license.html). uzlib is based on: tinf library by Joergen Ibsen (Deflate decompression); Deflate Static Huffman tree routines by Simon Tatham; LZ77 compressor by Paul Sokolovsky; with library integrated and maintained by Paul Sokolovsky.
Other useful links