1. المقدمة
The Waveshare ESP32-S3-Touch-LCD-4.3B-BOX is a microcontroller development board designed for Human-Machine Interface (HMI) and other ESP32-S3 applications. It integrates a 4.3-inch capacitive touch screen with an 800x480 resolution and 65K colors, along with 2.4GHz Wi-Fi and Bluetooth 5 (LE) connectivity. The board features an Xtensa 32-bit LX7 dual-core processor, high-capacity Flash, and PSRAM, making it suitable for running GUI programs like LVGL and interfacing with various peripherals.
This manual provides essential information for setting up, operating, and maintaining your development board.
2. محتويات العبوة
- ESP32-S3-Touch-LCD-4.3B-BOX Development Board x1
Please inspect the package contents upon receipt to ensure all items are present and undamaged. If any components are missing or damaged, please contact customer support.
3. انتهى المنتجview
The ESP32-S3-Touch-LCD-4.3B-BOX features a comprehensive layout of components and interfaces. Understanding these components is crucial for proper setup and operation.

الشكل 3.1: ESP32-S3-Touch-LCD-4.3B-BOX Component Layout
تحديد المكون:
- ESP32-S3-WROOM-1-N16R8: The System-on-Chip (SoC) with Wi-Fi and Bluetooth, up to 240MHz operating frequency, integrated 8MB PSRAM and 16MB Flash.
- فتحة بطاقة TF: للتخزين الخارجي.
- منفذ USB من النوع C: For power supply and data communication.
- زر التشغيل: اضغط مع الاستمرار أثناء تشغيل الجهاز لحرق البرنامج.
- زر إعادة الضبط: يعيد ضبط اللوحة.
- عزل الاقتران الضوئي: Provides electrical isolation for digital I/O.
- موصل لوحة اللمس: Connects to the capacitive touch screen.
- موصل لوحة العرض مقاس 4.3 بوصات: Connects to the LCD display.
- اختيار مقاومات طرفية لـ RS485 و CAN: Jumpers for enabling/disabling terminal resistors (closed by default).
- تشغيل/إيقاف مصدر طاقة البطارية: Switch for controlling battery power.
- 3.7V single lithium battery GH1.25 2P header: Connector for a 3.7V lithium battery.
- مؤشرات الحالة:
- منتهي: مؤشر اكتمال شحن بطارية الليثيوم.
- تغير المناخ: Lithium battery charging indicator.
- PWR: Power supply indicator. (CHG and DONE LEDs illuminate when connected to DC power supply and with battery connected or battery switch is OFF).
- طرف توصيل مصدر الطاقة بتيار مستمر 7-36 فولت: مدخل الطاقة الرئيسي.
- طرفية واجهة I2C: VOUT pin outputs 5V/3.3V (switching via onboard resistor).
- CAN interface terminal: للاتصال عبر ناقل CAN.
- RS485 interface terminal: للاتصال عبر RS485.
- الإخراج الرقمي: 5-36V, open-drain output, output load: 450mA per channel (MAX).
- الطرف المشترك لإشارة الإدخال: NC: dry contact passive input. Connect to power supply positive: digital input low active, for NPN wet contact active input, 5V-36V DC. Connect to power supply negative: digital input high active, for PNP dry contact active input, 5V-36V DC.
- المدخلات الرقمية: 5-36V, supports passive / active input (NPN or PNP).
4. الإعداد
4.1 تزويد اللوحة بالطاقة
The board can be powered via the USB Type-C port or the 7-36V DC power supply terminal. For portable applications, a 3.7V lithium battery can be connected to the GH1.25 2P header.
4.2 طرق التوصيل
The ESP32-S3-Touch-LCD-4.3B-BOX supports two primary wiring methods for integrating into various application scenarios, such as DIN rail or embedded devices. The case version does not support bottom wiring.

الشكل 4.1: Supported Wiring Methods
4.3 الاتصالات الطرفية
The board offers various interfaces for expanding functionality:
- واجهة I2C: For connecting I2C compatible sensors and modules.
- واجهة يمكن: للاتصال بشبكة منطقة التحكم.
- واجهة RS485: For serial communication over long distances.
- Digital Isolated I/O: Supports passive and active digital input with bi-directional optocoupler isolation, and digital output with optocoupler isolation providing up to 450mA sinking current.

الشكل 4.2: Multiple Peripheral Support
5. تعليمات التشغيل
5.1 التشغيل الأساسي
- تشغيل الطاقة: Connect a 7-36V DC power supply to the terminal or a 3.7V lithium battery (ensure the battery switch is ON), or connect the USB Type-C cable to a power source. The PWR indicator LED will illuminate.
- شاشة اللمس: The 4.3-inch capacitive touch screen supports 5-point touch control via an I2C interface. It is designed for smooth GUI interaction.
- واي فاي وبلوتوث: The ESP32-S3 SoC supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) with an onboard antenna. These features can be utilized through appropriate firmware development.

الشكل 5.1: IPS Display Panel and Capacitive Touch Functionality
5.2 تطوير البرمجيات
The board is suitable for GUI development using frameworks such as LVGL. Developers can utilize the ESP-IDF or Arduino IDE for programming the ESP32-S3. Refer to the official Espressif documentation and Waveshare's provided resources for detailed programming guides and exampليز.
5.3 سيناريوهات التطبيق
The ESP32-S3-Touch-LCD-4.3B-BOX is versatile for various applications:
- واجهة الإنسان والآلة (HMI): Ideal for creating interactive control panels and displays.
- تطوير واجهة المستخدم الرسومية LVGL: A powerful platform for developing rich graphical user interfaces.
- أجهزة إنترنت الأشياء: With Wi-Fi and Bluetooth, it can serve as a central control unit for smart home or industrial IoT applications.

الشكل 5.2: سيناريوهات التطبيق
6. الصيانة
6.1 التنظيف
To clean the display and case, use a soft, dry, lint-free cloth. For stubborn smudges, a slightly damp cloth with water or a mild screen cleaner can be used. Avoid abrasive materials or harsh chemicals.
6.2 تحديثات البرامج الثابتة
تحقق بشكل دوري من موقع Waveshare الرسمي website or relevant community forums for firmware updates. Keeping the firmware updated can improve performance, add new features, and resolve potential issues. Follow the provided instructions carefully when performing updates.
7. استكشاف الأخطاء وإصلاحها
This section addresses common issues you might encounter with the ESP32-S3-Touch-LCD-4.3B-BOX.
7.1 مشاكل الطاقة
- Board does not power on: Ensure the power supply is connected correctly and provides sufficient voltage (7-36V DC or 5V via USB-C). If using a battery, check its charge level and ensure the battery power switch is ON.
- Charging indicator (CHG) not lit: Verify the battery is properly connected and the DC power supply is active. The DONE indicator will light when charging is complete.
7.2 Display and Touch Issues
- Display is blank or distorted: Check the connection of the display panel. Ensure the firmware loaded supports the display and is initialized correctly.
- شاشة اللمس لا تستجيب: Verify the touch panel connector is secure. Ensure the I2C interface for the touch controller is correctly configured in your software.
7.3 مشاكل الاتصال (واي فاي/بلوتوث)
- Cannot connect to Wi-Fi/Bluetooth: Ensure the onboard antenna is not obstructed. Verify your software configuration for Wi-Fi/Bluetooth is correct, including SSID, password, and device discovery settings.
7.4 Development Environment Issues
- Code compilation errors: Ensure all necessary libraries are installed and compatible with your ESP-IDF or Arduino IDE version. Refer to the Waveshare documentation and community resources for specific library requirements.
- GPIO conflicts: When developing complex applications, be aware of potential GPIO conflicts, especially when using multiple peripherals simultaneously with the display and touch functions. Careful planning of pin assignments in your code is recommended.
8. المواصفات
| ميزة | مواصفة |
|---|---|
| المعالج | Xtensa 32-bit LX7 dual-core, up to 240MHz |
| الاتصال اللاسلكي | واي فاي بتردد 2.4 جيجاهرتز (802.11 b/g/n)، بلوتوث 5 (LE) |
| ذاكرة | ذاكرة وصول عشوائي ثابتة (SRAM) سعة 512 كيلوبايت، وذاكرة قراءة فقط (ROM) سعة 384 كيلوبايت، وذاكرة فلاش سعة 16 ميجابايت، وذاكرة وصول عشوائي ثابتة (PSRAM) سعة 8 ميجابايت |
| عرض | 4.3-inch capacitive touch, 800x480 resolution, 65K color IPS |
| التحكم باللمس | I2C interface, 5-point touch with interrupt support |
| مزود الطاقة | 7-36V DC (terminal), 5V via USB Type-C, 3.7V Lithium Battery (GH1.25 2P header) |
| Onboard Features | RTC chip, rechargeable battery support, CAN, RS485, I2C, TF card slot, Digital Isolated I/O |
| الإخراج الرقمي | Optocoupler isolation, up to 450mA sinking current |
| المدخلات الرقمية | Passive and active (NPN/PNP) with bi-directional optocoupler isolation |
| أبعاد | 4.58 × 3.11 × 0.7 بوصة (116.30 × 79.00 × 18.00 مم) |
| وزن | 6.7 أونصة (حوالي 190 جرامًا) |
9. الضمان والدعم
9.1 معلومات الضمان
Waveshare products are typically covered by a limited warranty against defects in materials and workmanship. Please refer to the official Waveshare webقم بزيارة الموقع أو وثائق الشراء الخاصة بك لمعرفة شروط وأحكام الضمان المحددة.
9.2 الدعم الفني
For technical assistance, development resources, and further documentation, please visit the official Waveshare website. Online development resources and technical support are provided. If you encounter any problems, please contact Waveshare customer support directly.





