SBT PIO Heltec V3 OLED

SBT PIO Heltec V3 OLED is an advanced lightning detection system built around the Heltec WiFi LoRa 32 V3 development board. This project combines cutting-edge sensor technology with robust wireless communication to provide real-time lightning detection and environmental monitoring.

🚀 Key Features

• Lightning Detection: Advanced AS3935 lightning sensor for accurate storm monitoring
• Dual Communication: WiFi for local networks and LoRa for long-range data transmission
• Environmental Sensors: Built-in temperature, humidity, and pressure monitoring
• OLED Display: Real-time status and sensor data visualization
• Battery Management: Efficient power management with solar charging support

🏗️ System Architecture

• Sender Node: Collects sensor data and transmits via LoRa to receiver
• Receiver Node: Receives LoRa transmissions and forwards data via WiFi
• Web Interface: Real-time monitoring and data visualization
• Data Logging: Comprehensive environmental and lightning event logging

🔧 Technical Specifications

• Microcontroller: ESP32-WROOM-32 with dual-core 240MHz processor
• Wireless: WiFi 802.11 b/g/n and LoRa 433/868/915MHz
• Display: 0.96" 128x64 OLED with I2C interface
• Power: 3.3V operation with LiPo battery support
• Development: Built with PlatformIO and Arduino framework

📋 Prerequisites

• Hardware: Heltec WiFi LoRa 32 V3 board
• USB Cable: Data cable (not just charging cable)
• Browser: Chrome or Edge (recommended)
• Firmware: Latest release from GitHub or local build

🔌 Flashing Steps

1. Connect Device: Plug your ESP32 into USB port
2. Enter Bootloader: Hold BOOT button while pressing RESET (if needed)
3. Click Flash: Press the "Connect & Flash" button above
4. Select Port: Choose your device from the browser dialog
5. Wait for Completion: Monitor progress and wait for success message

⚠️ Troubleshooting

• Device Not Detected: Try different USB cable or port
• Permission Denied: Ensure browser has USB access permissions
• Flashing Fails: Check device is in bootloader mode
• Browser Issues: Try Chrome/Edge with latest updates
• Firmware Errors: Verify firmware file is correct for your device

🔧 Port Opening Issues

If you get "Failed to open serial port" error:

• Download Mode: ESP32 must be in download mode (hold BOOT button while connecting)
• USB Cable: Use a data cable, not just a charging cable
• Other Apps: Close any other applications using the serial port
• Reconnect: Unplug and reconnect the device
• Port Selection: Make sure you selected the correct port in the browser dialog

📱 Download Mode Instructions

1. Hold BOOT: Press and hold the BOOT button on your ESP32
2. Press RESET: While holding BOOT, press and release the RESET button
3. Release BOOT: Release the BOOT button
4. Connect USB: The device should now be in download mode and ready for flashing