Sample project: how to read png images from sdcard and display on LCD with raspberry pico-sdk with a minimum memory usage.

Requirements: ✔️

• Linux or Windows 10 PC with WSL (Windows Subsystem Linux) - Ubuntu is recommended;
• Visual Studio Code with the following Microsoft extensions:
  • ms-vscode.cpptools-extension-pack;
  • ms-vscode-remote.vscode-remote-extensionpack (if working with WSL);
  • ms-vscode.vscode-serial-monitor.

B.O.M. (Bill Of Material): 🛒

• RaspberryPi Pico;
• 1.28inch_LCD_Module;
• MicroSD to SD card adapter (for easy soldering);
• MicroSD card;
• Some nice wires (30 AWG recommended);
• 2 x 10K resistors (for pull-up);
• 1 x 10uF capacitor (for decoupling);

Wiring: 🔌

Soon...

Development 👾

• Start a Linux terminal (on windows, just open the command prompt and type wsl);
• Install the build system, running the following command on terminal:

sudo apt update
sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi build-essential libstdc++-arm-none-eabi-newlib

• Download the repository with it's dependencies:

git clone --recurse-submodules --shallow-submodules https://github.com/juliannojungle/pico-sdk-sdcard-lcd-png.git

• Open the project folder in vscode, click on the 'no kit selected' on status bar, select GCC arm-none-eabi build kit, then click on Build (right next to it);

*.uf2 file will be written at build directory. Just copy it to the raspberry pico's usb drive.

---

^{@juliannojungle, 2023}