How to display real - time data on a 7 inch UART display? - Blog

Alright, folks! As a supplier of 7 inch UART displays, I'm super stoked to share with you how you can display real-time data on these awesome screens. UART, or Universal Asynchronous Receiver-Transmitter, is a widely used serial communication protocol, and our 7 inch UART displays are designed to make it a breeze to show real-time info.

Why Choose a 7 Inch UART Display?

First off, let's talk about why a 7 inch UART display is a great choice. The 7-inch size is just right - it's big enough to show detailed data clearly, but not too bulky for most applications. Whether you're using it in an industrial setting, a home automation project, or a DIY gadget, this size can fit the bill.

UART communication is simple and reliable. It uses just two wires for data transfer (TX and RX), which makes it easy to connect to microcontrollers and other devices. There's no need for complex synchronization signals, and you can send data at various baud rates depending on your needs.

Step 1: Get Your Hardware Ready

The very first thing you need to do is gather all the hardware you'll need. Of course, you'll start with our 7-Inch Industrial TFT Serial Screen. This display comes with all the necessary components for UART communication, so you don't have to worry about additional wiring and circuitry for that part.

You'll also need a microcontroller. Popular options include Arduino, Raspberry Pi, or ESP32. These are user-friendly and have tons of resources available online. Connect the TX pin of your microcontroller to the RX pin of the display and vice versa. Make sure to also connect the ground pins to ensure a common reference point.

Step 2: Setup the Software

Once your hardware is all set up, it's time to move on to the software side of things. The first thing you'll need to do is configure the UART settings on your microcontroller. This includes setting the baud rate, data bits, stop bits, and parity. The baud rate determines how fast the data is sent over the UART connection. A common baud rate is 9600, but you can adjust it based on your requirements.

For example, if you're using an Arduino, you can use the Serial.begin() function to set up the UART communication. Here's a simple code snippet:

void setup() {
  Serial.begin(9600); // Set the baud rate to 9600
}

void loop() {
  // Here you can send data to the display
  Serial.println("Hello, Display!");
  delay(1000);
}

On the display side, you'll need to write the code to receive and display the data. Most of our 7 inch UART displays come with a built-in firmware that can be easily programmed to interpret and show the incoming data. You can use programming languages like C or Python to write the code for your microcontroller.

Step 3: Real-Time Data Source

To display real-time data, you first need to have a source for that data. This could be a sensor, like a temperature sensor or a humidity sensor. Connect the sensor to your microcontroller. For instance, if you're using a DHT11 temperature and humidity sensor with an Arduino, you can use the following code to read the data:

#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" *C");

  delay(2000);
}

This code reads the temperature and humidity data from the sensor and sends it over the UART connection to the display.

Step 4: Displaying the Data

Now that you have the real-time data being sent from the microcontroller, you need to make sure the display shows it correctly. Our 7 inch UART displays have a graphical interface that can be customized to display the data in a user-friendly way. You can create text boxes, gauges, or graphs to show the temperature, humidity, or any other data you're collecting.

To update the display in real-time, you'll need to continuously receive the data on the display side and update the graphical elements accordingly. This can be done by writing code that parses the incoming data and then updates the relevant display elements.

Other UART Display Options

If a 7 inch display isn't quite what you're looking for, we also offer other sizes. Check out our 4.3 Inch UART LCD Display, which is a bit smaller and great for more compact applications. And if you need something even tinier, our 2.4 Inch UART Display might be the perfect fit.

Contact Us for Purchasing

If you're interested in our 7 inch UART displays or any of our other products, we'd love to hear from you. Whether you're a hobbyist working on a cool project or a professional in an industrial setting, we can provide you with high-quality displays and the support you need. Reach out to us to discuss your requirements, get a quote, or just ask any questions you might have. We're here to make sure you have the best experience with our products.

4.3 Inch UART LCD Display 7-Inch Industrial TFT Serial Screen