WifiStaModule

Connects the device to a WiFi network using credentials read from /wifi.json (LittleFS partition; see Deploy → WiFi provisioning). Implements smart TX-power adaptation: starts at 19.5 dBm, steps down through 17 / 15 / 13 / 11 / 8.5 dBm on connect timeout (finds the highest working power rather than jumping to the floor), probes back up every hour. Editing ssid / password rewrites /wifi.json and reconnects.

End-user reference

Control	Type	Range / default	Notes
enabled	toggle	true
ssid	text	—	Network SSID; edits trigger reconnect
password	password	—	WPA passphrase
status	display	—	connected / connecting… / no credentials / etc.
ip	display	—	Local IP once connected
rssi_dbm	display	-127..0	Signal strength
tx_power_dbm	display	0..21	Current TX power (post-adaptation)

Developer reference

• setup() — load /wifi.json via pal::fs_read_text; call pal::wifi_begin if credentials exist.
• loop1s() — poll pal::wifi_is_connected; on disconnect, step TX power through kTxSteps[]. Hourly probe-back-up to detect improved conditions.
• onUpdate(key) — for ssid or password edits, rewrite /wifi.json and reconnect.