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Modern cars typically use the CAN (Controller Local Area Network) protocol for internal communication to enable information sharing and control between various vehicle systems such as engines, brakes, suspension, etc. However, if debugging or program updates are required via a USB interface, specialized diagnostic tools or development boards are usually required.
One common way is to use the OBD (On-board Diagnostics) protocol. The OBD protocol is a communication protocol that allows a vehicle's diagnostic and control system to communicate with external devices such as laptops or smartphones. Through the OBD interface, it is possible to read and clear fault codes, monitor the status and performance of vehicle systems, and perform some basic diagnostic and maintenance tasks.
In addition to common devices such as cell phones, USB sticks and GPS receivers, there are other devices that can be connected via a car USB port. Here are some common examples:
Car tachograph: Many tachographs can be powered by the car USB interface, and some even directly use the car's own battery for power supply. This allows users to connect the recorder directly to the car without the need for an external power source.
Car navigators: Some portable navigators can be connected to the car via a USB interface, and these navigators usually have real-time traffic information, voice navigation and other functions.
Car diagnostic tools: Some dedicated car diagnostic tools can be connected to the car through the USB interface, these tools can read the car's various fault codes, data streams, etc., to help maintenance personnel quickly find the cause of car failure.
OBD-II scanning tool: OBD-II is a general on-board diagnostic system protocol, through OBD-II scanning tool can be connected to the OBD-II interface of the car, to obtain various fault codes, real-time data streams and other information of the vehicle.
Car audio devices: For example, some advanced audio devices can be connected to the car via USB interface, these devices support playback of lossless audio formats, and can also be controlled through the mobile APP.
Car air purifier: Car air purifier can take electricity through the USB interface, and filter the air in the car, improve the comfort of the driving environment.
Other smart devices: smart watches, health monitoring devices, etc., can also be connected to the car via the USB interface.
Modern cars typically use the CAN (Controller Local Area Network) protocol for internal communication to enable information sharing and control between various vehicle systems such as engines, brakes, suspension, etc. However, if debugging or program updates are required via a USB interface, specialized diagnostic tools or development boards are usually required.
One common way is to use the OBD (On-board Diagnostics) protocol. The OBD protocol is a communication protocol that allows a vehicle's diagnostic and control system to communicate with external devices such as laptops or smartphones. Through the OBD interface, it is possible to read and clear fault codes, monitor the status and performance of vehicle systems, and perform some basic diagnostic and maintenance tasks.
In addition to common devices such as cell phones, USB sticks and GPS receivers, there are other devices that can be connected via a car USB port. Here are some common examples:
Car tachograph: Many tachographs can be powered by the car USB interface, and some even directly use the car's own battery for power supply. This allows users to connect the recorder directly to the car without the need for an external power source.
Car navigators: Some portable navigators can be connected to the car via a USB interface, and these navigators usually have real-time traffic information, voice navigation and other functions.
Car diagnostic tools: Some dedicated car diagnostic tools can be connected to the car through the USB interface, these tools can read the car's various fault codes, data streams, etc., to help maintenance personnel quickly find the cause of car failure.
OBD-II scanning tool: OBD-II is a general on-board diagnostic system protocol, through OBD-II scanning tool can be connected to the OBD-II interface of the car, to obtain various fault codes, real-time data streams and other information of the vehicle.
Car audio devices: For example, some advanced audio devices can be connected to the car via USB interface, these devices support playback of lossless audio formats, and can also be controlled through the mobile APP.
Car air purifier: Car air purifier can take electricity through the USB interface, and filter the air in the car, improve the comfort of the driving environment.
Other smart devices: smart watches, health monitoring devices, etc., can also be connected to the car via the USB interface.
