ESP32-S3-Zero Projects

Multiple ESP32-S3-Zero project configurations stored in one repository.

Web Flasher

Flash firmware directly from your browser - no software installation required!

1. Open the web flasher
2. Connect your ESP32-S3 via USB
3. Click "Install" on your desired project
4. Follow the prompts to select your COM port

Troubleshooting: Bootloop Issue

If your ESP32-S2-Zero is stuck in a bootloop:

1. Hold both RESET and BOOT buttons simultaneously
2. Release the RESET button while continuing to hold BOOT
3. Keep holding BOOT while installing/flashing the firmware
4. Release BOOT after the installation completes

Projects

• wifi-rgb - WiFi-controlled RGB LED flasher
• stock-indicator - Real-time stock market indicator using Yahoo Finance API
  • Monitors S&P 500, Dow Jones, and NASDAQ
  • LED shows green/red during market hours based on performance
  • Web interface at http://192.168.4.1 (AP: "Stock" / "market123")
  • Configurable WiFi, LED colors, and blink settings
• ble-mouse-jiggler - Bluetooth Low Energy HID mouse
  • Moves cursor every 30 seconds
  • Pair as "MX Anywhere 3"

How to Switch Projects

Method 1: Web Flasher (Recommended)

Use the web flasher to instantly flash any project.

Method 2: PlatformIO (For Development)

1. Copy project files from projects folder:

   • Drag projects/[project-name]/main.cpp to src/main.cpp (replace existing)
   • Drag projects/[project-name]/platformio.ini to root platformio.ini (replace existing)

2. Upload to ESP32:

   • Click the Upload button in VS Code's toolbar (Ctrl+Alt+U)

Building Firmware for Web Flasher

To update the .bin files after making code changes:

.\build-all-projects.ps1

This script automatically:

1. Compiles each project in projects/ folder
2. Generates 4 binary files per project:
   • bootloader.bin - ESP32 bootloader
   • partitions.bin - Partition table
   • boot_app0.bin - Boot partition selector
   • firmware.bin - Your compiled application
3. Copies them to respective project folders
4. Updates are immediately available in the web flasher