EspHome config to sniff the signal from this specific unbranded generic doorbell using a cc1101 & esp32:

Used for integrating into Scrypted (HKSV fake doorbell), or notifications inside HomeAssistant

• Install this library into your EspHome host: https://github.com/dbuezas/esphome-cc1101

• Create a new device in EspHome. Use the config provided in config.yaml

• Flash onto esp

• Connect the esp to the cc1101 according to the config

        18, // SCK
        19, // MISO
        23, // MOSI
        5, // CSN
        12, // GDO0
  

• Change the binary_sensor mqtt-publish action according to your needs

• Profit?