Instrument-stem integrated system

An instrument-stem integrated system, comprising:

• a stem body, serving as a main structural member of a stem and simultaneously constituting a mounting housing and a heat dissipation substrate for an instrument assembly;
• the instrument assembly, embedded in a cavity on an inner side of the stem body, configured to display vehicle operating information and to execute vehicle-wide control, communication, and unlocking functions;
• a headlight assembly, integrated at a front end of the stem body, comprising a headlight metal housing and a plurality of headlight locking screws;
• a headlight harness,
• a main control harness, and
• a button harness,
• wherein the headlight harness, the main control harness, and the button harness are routed out from an interior of the stem body, the headlight harness is configured to connect to a headlight, the main control harness is configured to connect to an external controller, and the button harness is configured to connect to an external button;
• the instrument assembly comprises a main electronic control board and a secondary electronic control board;
• the main electronic control board is configured to integrate a main control microcontroller unit (MCU), a Bluetooth module, and a radio frequency identification (RFID) module, the secondary electronic control board is configured to integrate external harness interfaces and to be electrically connected to the main electronic control board;
• and the instrument assembly communicates with the external controller via a harness or wirelessly.