RTNode Firmware Flasher

Flash RTNode firmware directly from your browser — no Python or tools required.

Step 1 — Detect

Connect your RTNode via USB, then click Detect to identify the board automatically.

Step 2 — Flash

Version

Writes only the application region (0x10000). Bootloader, partition table, and all saved settings (LoRa config, identity, WiFi) are left untouched.

Console

Requirements

✓ Google Chrome 89+ or Microsoft Edge — Web Serial API required (Firefox and Safari are not supported)
✓ USB cable connected to your RTNode device
✓ No Python, esptool, or PlatformIO installation needed
⚠ On Linux, you may need to add your user to the dialout group: sudo usermod -a -G dialout $USER (then log out and back in)