Device for automatically sensing fish biting

The utility model provides a device for automatically sensing fish biting, which is arranged in a shell of a buoy and comprises a fixed bracket, a floating tray, a fishing line guide clamp, a floatingreturn spring, magnetic steel, a linear Hall sensor, an MCU (Microprogrammed Control Unit) module, a communication module and a power supply module, the fixed bracket is fixed in a shell of the buoy,the fishing line guide clamp, the floating tray and the floating reset spring are sequentially and transversely connected and then installed on the fixed bracket, the top end of the floating tray installed in the fixed bracket in a sliding mode is connected with the fishing line guide clamp, and the tail end of the floating tray is connected with the floating reset spring. Wherein the magnetic steel is installed on the fixed bracket, the signal acquisition end of the magnetic steel is connected with the floating tray, the signal acquisition end of the linear Hall sensor corresponds to the position of the magnetic stee