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+# PicoCalc LVGL Graphics Demo
+
+This is a template demo app using LVGL graphic engine on PicoCalc. 
+
+### TODOs
+#### Done
+- [x] Project support for both Pico1/2 Builds
+- [x] Initial LVGL Project support
+- [x] I2C Keyboard Porting for LVGL
+- [x] SPI Display Porting for LVGL
+- [x] Bitmap Driver flushing
+#### TODO
+- [ ] Improve Keyboard event processing
+
+## Building
+``` shell
+# onetime, cloning latest lvgl submodule
+git submodule update --init --recursive
+
+
+cd {to_this_demo_path}
+
+mkdir build
+cd build
+export PICO_SDK_PATH=/where/pico-sdk/is
+cmake ..
+make  
+```
+
+
+## Build for Pico 1(RP2040) or Pico 2(RP2350)
+if you are using other pico board, you could select a board type from the `CMakeLists.txt`
+
+```cmake
+# Setup board for Pico 1
+set(PICO_BOARD pico)
+
+# Setup board for Pico 2W
+# set(PICO_BOARD pico2)
+```
+
+## How to Upload UF2 
+
+Uploading a UF2 file to the Raspberry Pi Pico on a Linux system is straightforward. Here’s how you can do it:
+
+### Step 1: Prepare Your Raspberry Pi Pico
+Enter Bootloader Mode:
+
+- Hold down the BOOTSEL button on your Pico.
+- While holding the button, connect the Pico to your Linux PC via USB.
+- Release the BOOTSEL button.
+- Check If the Pico Is Recognized:
+
+Your Pico should appear as a mass storage device named RPI-RP2.
+
+Verify using the following command:
+
+```bash
+lsblk
+```
+
+You should see a new device (e.g., /media/$USER/RPI-RP2 or /run/media/$USER/RPI-RP2).
+
+### Step 2: Copy the UF2 File to the Pico
+```
+cp your_firmware.uf2 /media/$USER/RPI-RP2/
+```
+
+### Step 3: Run it
+On PicoCalc, the default serial port of the Pico is the USB Type-C port, not its built-in Micro USB port.  
+So here is the standard running procedures: 
+
+- Unplug the pico from Micro-USB cable
+- Plug the pico via USB Type-C
+- Press Power On on Top of the PicoCalc
+
+
+If your firmware includes serial output, you can monitor it using **minicom** or **screen**:   
+```bash
+screen /dev/ttyACM0 115200
+```
+
+(Replace /dev/ttyACM0 with the correct serial port for your Pico.)  
+
+The serial monitor of **Arduino IDE** is another great choice for PicoCalc serial output on both Linux and Windows.
+
+
+#### Special thanks
+[Hsuan Han Lai](https://github.com/adwuard) for initial porting and demo project for the PicoCalc