ELECROW 7.0" ESP32 HMI Display Documentation
The ELECROW 7.0" ESP32 HMI Display is a versatile, Arduino-compatible LCD display module that integrates an ESP32 microcontroller, a 7.0-inch capacitive touchscreen, and a acrylic case. This display module is designed for IoT applications, robotics, and projects requiring a user-friendly human-machine interface (HMI). The module supports popular development frameworks such as LVGL, MicroPython, and PlatformIO.
7.0-inch capacitive touchscreen display with 1024x600 resolution
ESP32 microcontroller with Wi-Fi and Bluetooth capabilities
Compatible with Arduino, LVGL, MicroPython, and PlatformIO
Acrylic case for protection and mounting
Supports various communication protocols (e.g., HTTP, MQTT, Modbus)
To get started with the ELECROW 7.0" ESP32 HMI Display, follow these steps:
1. Connect the display module to your computer using a USB cable.
2. Install the necessary drivers and development environment (e.g., Arduino IDE, PlatformIO, or MicroPython).
3. Write and upload your code to the ESP32 microcontroller.
### Example 1: Basic LVGL GUI with Arduino
This example demonstrates how to create a simple GUI using LVGL and Arduino.
ELECROW 7.0" ESP32 HMI Display
USB cable
Arduino IDE (version 1.8.13 or later)
LVGL library (version 7.11.0 or later)
Code
```c++
#include <Arduino.h>
#include <lvgl.h>
// Initialize the LVGL library
lv_init();
// Create a screen object
lv_obj_t scr = lv_scr_act();
// Create a label object
lv_obj_t label = lv_label_create(scr);
lv_label_set_text(label, "Hello, World!");
// Set the label's position and size
lv_obj_set_pos(label, 100, 100);
lv_obj_set_size(label, 200, 50);
// Display the screen
lv_scr_load(scr);
```
Upload the code to the ESP32 microcontroller using the Arduino IDE. The display will show a "Hello, World!" label.
### Example 2: MicroPython Web Server with Wi-Fi
This example demonstrates how to create a simple web server using MicroPython and Wi-Fi.
ELECROW 7.0" ESP32 HMI Display
USB cable
MicroPython (version 1.18 or later)
Code
```python
import network
import socket
import(machine)
# Initialize the Wi-Fi module
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
# Connect to a Wi-Fi network
wlan.connect("your_wifi_ssid", "your_wifi_password")
# Create a socket object
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Bind the socket to a port
sock.bind(("0.0.0.0", 80))
# Listen for incoming connections
sock.listen(5)
print("Web server started. Open http://<IP_address>:80 in your browser.")
while True:
# Accept incoming connections
conn, addr = sock.accept()
print("Connection from:", addr)
# Handle the request
request = conn.recv(1024)
print("Request:", request)
# Send a response
response = b"Hello, World!"
conn.sendall(response)
conn.close()
```
Upload the code to the ESP32 microcontroller using MicroPython. Connect to the Wi-Fi network and open a web browser with the IP address of the ESP32 (e.g., `http://192.168.1.100:80`). The display will show a "Hello, World!" message.
Troubleshooting and Resources
For troubleshooting and additional resources, refer to the following:
ELECROW 7.0" ESP32 HMI Display datasheet
LVGL documentation
MicroPython documentation
PlatformIO documentation
Arduino IDE documentation
