The first page has one button to turn an LED on, another button to turn an LED off, a label showing the LED current state.The user interface has two pages: one controls two LEDs connected to the Arduino pins, and the other shows data gathered from the DHT11 temperature and humidity sensor.Here’s the features of the application we’re going to build: Here we’re going to create a user interface in the Nextion display to control the Arduino pins, and display data. The best way to get familiar with a new software and a new device is to make a project example. Here’s the schematic you need to follow to wire the display to the Arduino. Along with your Nextion display, you’ll also receive a USB to 2 pin connector, useful to connect the power adaptor to the display. You should use a 5V/1A power adaptor with a micro USB cable. So, you should use an external power source. Working with insufficient power supply may damage the display. You can power up the Nextion display directly from the Arduino 5V pin, but it is not recommended. Here’s how you should wire the Nextion display: Nextion These pins are labeled at the back of your display, as shown in the figure below. You just need to make four connections: GND, RX, TX, and +5V. Wiring Nextion Display to the ArduinoĬonnecting the Nextion display to the Arduino is very straightforward. Now, you are ready to start experimenting with the Nextion display with Arduino UNO. Change line 37, so that you have the following: #define nexSerial Serial Comment line 32: //#define dbSerial Serialĥ. Comment line 27, so that it stays as follows: //#define DEBUG_SERIAL_ENABLEĤ. There should be a NexConfig.h file – open that file.ģ. Open the ITEADLIB_Arduino_Nextion folderĢ. To make it work for Arduino Uno, you need to do the following:ġ. This library is configured for Arduino MEGA2560 by default. Move the ITEADLIB_Arduino_Nextion folder to your Arduino IDE installation libraries folder.Rename your folder from ITEADLIB_Arduino_Nextion-master to ITEADLIB_Arduino_Nextion.zip folder and you should get ITEADLIB-Arduino-Nextion-master folder. Click here to download the Nextion library for Arduino – ITEADLIB_Arduino_Nextion.Follow the next steps to install the library: exe file.īefore getting started, you also need to install the Nextion libraries for Arduino IDE. Go to h ttps:///, select the Resources tab, Download > Nextion Editor and install Nextion Editor. To get started with Nextion, first you need to install Nextion Editor. You can check Maker Advisor website to get your Nextion display at the best price – just click the links below: Additionally, this is the most used size, which means more open-source examples and resources for this size. If you’re just getting started with Nextion, we recommend getting the 3.2” size which is the one used in the Nextion Editor examples (the examples also work with other sizes, but you need to make some changes). The best model for you, will depend on your needs.
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