1. Продукт бүтүп калдыview
The Waveshare 3.5-inch Resistive Touch Screen TFT LCD (model XPT2046) is a compact display designed for use with various Raspberry Pi revisions (B+/2B/3B/3B+). It features a 480x320 hardware resolution and resistive touch control, enabling direct interaction without a separate keyboard or mouse. The display utilizes 125MHz high-speed SPI for clear and stable signal transmission.
This display supports FBCP software drivers, allowing for configurable software resolution and dual-display setups. Drivers are provided for popular Raspberry Pi operating systems such as Raspbian, Ubuntu, Kali, and Retropie. Its immersion gold surface plating ensures high quality and durability.
Figure 1: Waveshare 3.5-inch RPi LCD (C) module, displaying its circuit board and components.
2. Пакеттин мазмуну
- 3.5inch RPi LCD (C) x1
- Сенсордук калем x1
- RPi screws pack (2pcs) x1
3. Орнотуу нускамалары
3.1. Физикалык байланыш
The 3.5-inch RPi LCD (C) is designed for direct plug-in compatibility with Raspberry Pi models B+, 2B, 3B, and 3B+. Align the display's GPIO pins with the Raspberry Pi's GPIO header and gently press down to ensure a secure connection. The included screws can be used to further secure the display to the Raspberry Pi, providing stability.
Figure 2: The 3.5-inch LCD display securely mounted on a Raspberry Pi.
3.2. Программанын конфигурациясы
To enable the display and touch functionality, specific drivers are required. Waveshare provides drivers compatible with various Raspberry Pi operating systems, including Raspbian, Ubuntu, Kali, and Retropie. Refer to the official Waveshare product page or documentation for detailed instructions on driver installation for your specific OS. The display also supports FBCP (Frame Buffer Copy) software drivers, which allow for flexible configuration of software resolution and the setup of dual-display environments.
After installing the drivers, you may need to configure the system to output to the SPI display. This typically involves modifying configuration files (мисалы, /boot/config.txt) to enable SPI and set the correct display parameters. Detailed steps are available in the Waveshare documentation.
4. Иштөө нускамалары
4.1. Негизги операция
The 3.5-inch LCD features resistive touch control. Use the provided touch pen or a gentle finger press to interact with the screen. Resistive touch screens respond to pressure, so a light but firm touch is usually sufficient. Calibration may be required after initial setup to ensure accurate touch response.
Figure 3: The display showing a typical Raspberry Pi desktop interface.
4.2. Key Features in Use
- Видеону ойнотуу: With a refresh rate up to 50Hz when combined with the Raspberry Pi, the display is capable of playing various video formats, such as MP4.
- Оюн: Enjoy playing video games, including those supported by RetroPie, directly on the compact screen.
- Сүрөт: Utilize the touch screen for camera control, supporting multiple camera modes if configured with a compatible camera module.
- Software Keyboard: Interact with the system using an on-screen software keyboard, eliminating the need for external keyboard and mouse peripherals.
4-сүрөт: Web browsing on the 3.5-inch display.
5-сүрөт: Дисплейде көрсөтүлөтasing a high-quality image while mounted on a Raspberry Pi.
5. Техникалык тейлөө
5.1. Кам көрүү жана тазалоо
To maintain the longevity and performance of your Waveshare 3.5-inch LCD, follow these guidelines:
- Экранды тазалоо: Жумшак, түксүз кездемени колдонуңуз, бир аз dampened with water or a screen-cleaning solution, to gently wipe the display surface. Avoid harsh chemicals, abrasive materials, or excessive moisture.
- Колдонуу: Avoid applying excessive pressure to the screen, especially with sharp objects, as this can damage the resistive touch layer. Always use the provided touch pen for best results.
- Сактагыч: When not in use, store the display in a clean, dry environment, away from direct sunlight and extreme temperatures.
- Экологиялык шарттар: Operate the display within recommended temperature and humidity ranges to prevent damage.
6. Кыйынчылыктарды
6.1. Жалпы маселелер
- Дисплей иштебейт:
- Ensure the display is correctly and securely plugged into the Raspberry Pi's GPIO header.
- Verify that the necessary drivers are installed and configured correctly for your operating system.
- Check the Raspberry Pi's power supply to ensure it provides sufficient current for both the Pi and the display.
- Touch Function Not Responding:
- Confirm that the touch screen drivers are installed and loaded.
- Perform a touch screen calibration if available in your OS settings.
- Ensure you are using a suitable object (like the provided touch pen) and applying appropriate pressure.
- Incorrect Display Orientation/Resolution:
- Review your software configuration files (мисалы,
/boot/config.txt) for correct rotation and resolution settings. - Reinstall or update display drivers.
- Review your software configuration files (мисалы,
7. Техникалык шарттар
7.1. Key Parameters
| Параметр | Нарк |
|---|---|
| LCD түрү | TFT |
| LCD интерфейси | SPI |
| Сенсордук экран түрү | Резистенттүү |
| Сенсордук экран контроллери | XPT2046 |
| Түстөр | 65536 |
| Арткы жарык | LED |
| Резолюция | 480x320 (Pixel) |
| Аспект катышы | 1.50:1 (3:2) |
| Туруктуу экран дисплей өлчөмү | 3.5 дюйм |
| Screen Surface Description | Жылтырак |
| Элемент моделинин номери | XPT2046 |
7.2. Interface Pinout
| PIN ЖОК. | СИМВОЛ | СҮРӨТТӨМ |
|---|---|---|
| 1, 17 | 3.3V | Оң кубаттуулук (3.3V кубаттуулук киргизүү) |
| 2, 4 | 5V | Оң кубаттуулук (5V кубаттуулук киргизүү) |
| 3, 5, 7, 8, 10, 12, 13, 15, 16 | NC | NC |
| 6, 9, 14, 20, 25 | GND | Жер |
| 11 | TP_IRQ | Touch Panel Interrupt, low level while the Touch Panel detects touching |
| 18 | LCD_RS | Инструкция/Маалымат реестрин тандоо |
| 19 | LCD_SI / TP_SI | LCD/сенсордук панелдин SPI маалыматтарын киргизүү |
| 21 | TP_SO | Сенсордук панелдин SPI маалыматтарынын чыгышы |
| 22 | RST | Калыбына келтирүү |
| 23 | LCD_SCK / TP_SCK | LCD/Сенсордук панелдин SPI сааты |
| 24 | LCD_CS | LCD чип тандоо, аз активдүү |
| 26 | TP_CS | Сенсордук панелдин чипти тандоо, аз активдүү |
Figure 6: Detailed technical specifications and pinout diagram.
7.3. Физикалык өлчөмдөр
Figure 7: Dimensions of the 3.5-inch RPi LCD (C).
8. Кепилдик жана колдоо
8.1. Кепилдик маалыматы
Specific warranty details for the Waveshare 3.5-inch Resistive Touch Screen TFT LCD XPT2046 are not provided in this manual. Please refer to the Waveshare official website or contact your point of purchase for current warranty terms and conditions.
8.2. Техникалык колдоо
For technical assistance, driver downloads, or further documentation, please visit the official Waveshare website. You may also contact Waveshare customer support directly for specialized help with product installation, configuration, or troubleshooting beyond the scope of this manual.
