Get Started With 3.5” LCD for Raspberry Pi
The 3.5 inch LCD Display is directly pluggable into a Raspberry Pi and perfectly fits various Pi models from B+ to Raspberry Pi 3B+. It is a brilliant alternative for an HDMI monitor. When set up, it behaves as a human-machine interface enabling the user to prototype with the Raspberry Pi device anywhere at any time.
Features:
- 480x320 hardware resolution with 8:5 aspect ratio
- Typical current consumption within 110-150 mA with a 5V supply
- High-quality immersion gold plating
- Resistive touch control
- Simple installation procedure described below
Installation:
It is very easy to set up the display by installing an LCD driver on your Raspbian OS. It requires only 3 commands to be run on the terminal.
After setting up your Raspberry Pi, connect the LCD Screen to your RPi as shown below
1. Display works on SPI communication protocol so you have to enable SPI interface
Menu>Preferences>Raspberry Pi Configuration>Interfaces; click ‘Enabled’ for SPI
Or
type sudo raspi-config in the terminal, go to Interfacing Options, select SPI and enable it, click on Finish to close the configuration menu
2. Restart your RPi to make sure that the configuration changes have been updated
3. Open the terminal by pressing Ctrl-Alt-T or by clicking on its icon located in the RPi taskbar at the top
4. Update your libraries, just for good practice
sudo apt-get update && sudo apt-get upgrade
5. Download the drivers from Github
git clone https://github.com/goodtft/LCD-show
6. Go inside the driver’s directory
cd LCD-show
7. List all the files in this folder to find the LCD35-show file (Just for good practice)
8. Convert the file into an executable using super-user
sudo chmod 755 ./LCD-show
9. Run the executable
sudo ./LCD35-show
(if the command is not being executed, run sudo chmod 755 ./LCD-hdmi)
10. RPi will restart after running the program and your LCD will display the desktop
11. Switching back to HDMI Monitor:
Check Out our Wide Range of Raspberry Pi Case.
If you want to switch back to an HDMI monitor from the LCD screen, the process is also very simple.
1. Every library also includes a file to revert back to HDMI
2. Go into the directory of the library
cd LCD-show
3. List all the files to find LCD-hdmi file
ls
4. Convert this file into an executable
sudo chmod 755 ./LCD-hdmi
5. Run the executable to view your Raspbian desktop from an HDMI monitor
sudo ./LCD35-hdmi
Like the previous time, Raspberry Pi will restart to switch to HDMI
We hope that this helps you, explore more and learn more.
Excerpt
Frequently Asked Questions
1. What is a 3.5-inch LCD for Raspberry Pi?
A 3.5-inch LCD for Raspberry Pi is a compact display that allows users to visually interact with their Raspberry Pi projects. Its touch capabilities enable easy navigation and control of applications. This LCD is ideal for creating portable devices, offering a user-friendly interface for programming and automation tasks.
2. How do I connect the LCD to Raspberry Pi?
To connect the LCD to your Raspberry Pi, insert the 3.5-inch LCD into the GPIO pins. Ensure that the pins correspond correctly to avoid any damage. Following the physical connection, proceed to set up any necessary software drivers for optimal performance.
3. Which Raspberry Pi models support it?
The 3.5-inch LCD is compatible with various Raspberry Pi models, including the Raspberry Pi 2, 3, and 4. This versatility allows users to utilize the LCD display across different projects and platforms, enhancing the overall functionality.
4. How to install drivers for the LCD?
To install drivers for the LCD, download the appropriate driver package from the manufacturer’s website. After transferring the files to your Raspberry Pi, use the terminal to input specific commands, as detailed in the driver documentation, ensuring a smooth installation.
5. How to calibrate the touchscreen?
Calibrating the touchscreen involves running a calibration script included with the driver package. Use the terminal to execute the command, then follow the on-screen instructions to touch specific points on the screen. This process ensures accurate touch responses and a better user experience.
6. What is the resolution of the 3.5” LCD?
The resolution of the 3.5-inch LCD is typically 480 x 320 pixels. This resolution provides clear visuals, making it suitable for displaying information and graphics in various Raspberry Pi applications, from simple interfaces to more complex GUI designs.
7. Can it work with Raspberry Pi 4?
Yes, the 3.5-inch LCD is fully compatible with Raspberry Pi 4. Its touch interface and resolution work seamlessly with the Raspberry Pi 4’s capabilities, allowing users to take full advantage of the powerful hardware for their projects.
8. How to rotate display orientation?
To rotate the display orientation, modify the configuration file in the Raspberry Pi settings. Access the command line and enter specific commands to set the desired orientation (0, 90, 180, or 270 degrees). Save changes and restart for the new orientation to take effect.
9. What are common issues and fixes?
Common issues include screen flickering, touch sensitivity problems, or failure to display. To resolve these, ensure proper connections, check for updated drivers, and verify the power supply. Adjusting software settings in the driver package can also help resolve touch issues.
10. How to use it for GUI projects?
To use the 3.5-inch LCD for GUI projects, integrate it with a graphics library like Pygame or Tkinter. Design your interface using simple scripts. The touch capability enhances interactivity, allowing for user input and dynamic content display, making your projects more engaging.
1. What is a 3.5-inch LCD for Raspberry Pi?
A 3.5-inch LCD for Raspberry Pi is a compact display that allows users to visually interact with their Raspberry Pi projects. Its touch capabilities enable easy navigation and control of applications. This LCD is ideal for creating portable devices, offering a user-friendly interface for programming and automation tasks.
2. How do I connect the LCD to Raspberry Pi?
To connect the LCD to your Raspberry Pi, insert the 3.5-inch LCD into the GPIO pins. Ensure that the pins correspond correctly to avoid any damage. Following the physical connection, proceed to set up any necessary software drivers for optimal performance.
3. Which Raspberry Pi models support it?
The 3.5-inch LCD is compatible with various Raspberry Pi models, including the Raspberry Pi 2, 3, and 4. This versatility allows users to utilize the LCD display across different projects and platforms, enhancing the overall functionality.
4. How to install drivers for the LCD?
To install drivers for the LCD, download the appropriate driver package from the manufacturer’s website. After transferring the files to your Raspberry Pi, use the terminal to input specific commands, as detailed in the driver documentation, ensuring a smooth installation.
5. How to calibrate the touchscreen?
Calibrating the touchscreen involves running a calibration script included with the driver package. Use the terminal to execute the command, then follow the on-screen instructions to touch specific points on the screen. This process ensures accurate touch responses and a better user experience.
6. What is the resolution of the 3.5” LCD?
The resolution of the 3.5-inch LCD is typically 480 x 320 pixels. This resolution provides clear visuals, making it suitable for displaying information and graphics in various Raspberry Pi applications, from simple interfaces to more complex GUI designs.
7. Can it work with Raspberry Pi 4?
Yes, the 3.5-inch LCD is fully compatible with Raspberry Pi 4. Its touch interface and resolution work seamlessly with the Raspberry Pi 4’s capabilities, allowing users to take full advantage of the powerful hardware for their projects.
8. How to rotate display orientation?
To rotate the display orientation, modify the configuration file in the Raspberry Pi settings. Access the command line and enter specific commands to set the desired orientation (0, 90, 180, or 270 degrees). Save changes and restart for the new orientation to take effect.
9. What are common issues and fixes?
Common issues include screen flickering, touch sensitivity problems, or failure to display. To resolve these, ensure proper connections, check for updated drivers, and verify the power supply. Adjusting software settings in the driver package can also help resolve touch issues.
10. How to use it for GUI projects?
To use the 3.5-inch LCD for GUI projects, integrate it with a graphics library like Pygame or Tkinter. Design your interface using simple scripts. The touch capability enhances interactivity, allowing for user input and dynamic content display, making your projects more engaging.
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