ESPHome local control for Panasonic ERV / fresh-air heat exchangers on the CN12 bus: Home Assistant + HomeKit, no OEM Wi-Fi/RS485 module, no cloud, one ~$5 ESP32 | 松下新风系统(全热交换器)全本地接入 HA + HomeKit:一块 ESP32 顶替原厂 WiFi/485 模块直连主板,免云端免App,超低成本
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Updated
Jun 28, 2026 - C++