coXXect

In my previous post, I demonstrated how to download and display JPG images via WiFi on the Waveshare ESP32-C5-WIFI6-KIT-N16R8 with an 240x320 ST7789 SPI TFT LCD using hardcoded filenames . This new implementation is much more flexible: filenames are now stored in a jpg_list.txt file on the server, allowing the ESP32 to download the images dynamically. I have also successfully tested this setup on the Waveshare ESP32-S3-Touch-AMOLED-2.1 with its 480x480 AMOLED (CO5300 driver) . How it Works The program operates in three distinct phases: WiFi connection: The ESP32-S3 connects to a local WiFi access point and establishes communication with a Python-based HTTP server. Since the WiFi access point is a Windows 11 Mobile Hotspot and the Python-based HTTP server is running on that same PC, we can assume the server IP address is identical to the Access Point (Gateway) IP. Dynamic Manifest Retrieval: First downloads a jpg_list.txt file. Th...

Prepare libraries to run HelloWorld on Waveshare ESP32-S3-Touch-AMOLED-2.16 , in Arduino framework. Following the steps in Waveshare docs, ESP32-S3-Touch-AMOLED-2.16 > Working with Arduino Notice: About display resolution: currently, both LCD_WIDTH and LCD_HEIGHT in libraries//Mylibrary/pin_config.h are set 466, have to set it 480 to match the actual resolution. The following exercise define LCD connection in code, so no need to #include "pin_config.h". S3_CO5300_basictest.ino /* Exercise run on ESP32-S3-Touch-AMOLED-2.16 https://coxxect.blogspot.com/2026/05/prepare-helloworld-for-waveshare-esp32.html Remark about "USB CDC On Boot" option for Serial.print() For Waveshare ESP32-S3-Touch-AMOLED-2.16 with a single USB port only, select USB CDC On Boot: "Enabled". Otherwise, you cannot see the output by Serial.print(). */ #include <Arduino.h> #include "Arduino_GFX_Library.h" // === #define LCD_SDIO0 4...

To install the Arduino IDE 2.3.8 on Linux Mint using the AppImage format, tested on Linux Mint 22.3 Xfce over VirtualBox on Windows 11. Step 1: Download the AppImage - Go to the official Arduino Software page . - Look for Arduino IDE 2.3.8 (or the latest version). - Click on the "Linux AppImage 64 bits" link to download the file. - You can move the downloaded file to other folder you want. Step 2: Grant Execution Permission By default, Linux treats downloaded AppImages as non-executable files for security. You must enable execution rights. Option A: Using the Terminal (Recommended) Open your terminal and navigate to the folder contain the downloaded file: chmod +x arduino-ide_2.3.8_Linux_64bit.AppImage Option B: Using the GUI - Right-click the downloaded .AppImage file. - Select Properties. - Go to the Permissions tab. - Check the box that says "Allow executing file as program". Step 3: Configure Serial Port Permissions (dialout) In Linux, your user accou...

A USB filter in VirtualBox allows you to automatically capture USB devices for use in a virtual machine (VM). This ensures that the device is passed directly to the guest OS when connected, bypassing the host system. Steps to Add a USB Filter 1. Install VirtualBox Extension Pack      Ensure the Extension Pack is installed on the host. It adds support for USB 2.0/3.0. Download and install it from the VirtualBox website . 2. Enable USB Controller in VM Settings      Open VirtualBox and select your VM. Go to Settings > USB. Enable USB 2.0 (EHCI) or USB 3.0 (xHCI) depending on your guest OS support. 3. Create a USB Filter      While the USB device is connected to the host, click Add Filter (+) in the USB settings of your VM. A new filter will be created with details like Vendor ID, Product ID, etc., pre-filled for the connected device. You can edit these fields if needed (e.g., leave fields blank for broader matching). 4....

In this exercise, I demonstrate how to download a JPG image over Wi-Fi, decode it using the JPEGDEC library, and display it on a 3.2-inch 240×320 ST7789 TFT LCD (4-wire SPI) . The project uses the Arduino_GFX_Library together with the Waveshare ESP32-C5-WIFI6-KIT-N16R8 , running in the Arduino framework. Connection: 3.2" 240x320 ST7789 TFT LCD Waveshare (4-Wire SPI) ESP32-C5-WIFI6-KIT-N16R8 BL --------------------------- GPIO26 CS --------------------------- GPIO23 DC --------------------------- GPIO24 RES --------------------------- GPIO25 SDA --------------------------- GPIO8 SCL --------------------------- GPIO10 VCC --------------------------- 3V3 GND --------------------------- GND Libraries: Arduino_GFX_Library and  JPEGDEC libraries are needed to be installed in Arduino IDE Library Manager. Basic Test: ESP32C5_ST7789_SPI.ino /* Exercise run on Waveshare ESP32-C5-WIFI6-KIT-N16R8 Work with 3.2" 240x320 ST7789 SP...

3.2" 240x320 ST7789 TFT LCD (4-Wire SPI/8-Bit Parallel/16-Bit Parallel) T320H8-C40-11 Exercise: ~  Downloading and Displaying JPG Images via WiFi on ESP32-C5 with ST7789 SPI TFT LCD