J. Nick Koston ec70166ad2 [wifi] Reject WiFi config on RP2040/RP2350 boards without CYW43 chip
Boards like rpipico2 (Raspberry Pi Pico 2) don't have WiFi hardware
but ESPHome allowed configuring wifi on them, leading to linker errors
from missing CYW43 driver symbols. Add validation to catch this at
config time with a clear error message.

- Add wifi detection to the board generator by checking for
  PICO_CYW43_SUPPORTED=1 in upstream extra_flags
- Add validation in wifi component to reject non-WiFi RP2040 boards

Closes https://github.com/esphome/esphome/issues/14989
2026-03-19 16:01:02 -10:00
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Description
ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.
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