EventControl FlasherHeltec WiFi LoRa 32 V4 queue sensors · flash and configure from the browser over USB

1Flash the firmware nodes get their lane and number, gateways their Wi-Fi and broker, written with the firmware

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Plug the board in with a data USB-C cable. If the port doesn't show up, hold PRG, tap RST, then release PRG to force the bootloader. Fit both antennas before you power up: 868 MHz on the LoRa port, 2.4 GHz on the BLE port (they are both IPEX, so label them).

Settings and passwords stay in this browser: the settings image is built on this page and goes straight to the board over USB.

2Check or change a board over USB optional · read its status, change Wi-Fi or re-number a node without reflashing

Close the flashing dialog first, then connect. The board's settings show up here.
Serial console

3Check it in EventControl

  1. A configured node sends a boot packet after its first 10 s scan. Its screen shows a tick once a gateway answers.
  2. Under Infrastruktur → Köer the node turns green within a minute. A new number is added to its lane automatically. "Check 2.4 GHz antenna" means LoRa works but BLE heard almost nothing.
  3. After 30 s the node turns its screen off to save battery. Press PRG to show it again for 30 s.