Flash the Reticulum LoRa Repeater firmware onto a fresh board straight from this page, then connect over USB to read its live status, edit the persistent Config, and calibrate the battery ADC from a multimeter reading. Nothing touches flash until you click a Commit or Flash button.
Pick a version below and click Select firmware. Then put the board in bootloader mode by double-tapping the reset button on the board (within ~500 ms) — the device will re-enumerate as a new USB serial port. Click Flash and pick that new port in the browser's picker.
After flashing, connect to the running application port (not the bootloader) to read status, edit config, and calibrate the battery.
Measure the actual battery (or USB rail) voltage with a multimeter, enter it below, click Calibrate. The firmware computes a fresh multiplier from the raw ADC reading and stages it. Commit to persist.