The 2A needs to use the default 25600 baud rate parameter. If the output of the 2A becomes wildly inconsistent with the output of the HLKRadarTool, please consider resetting the serial port baud rate of the LD2450.

For 2A, the default baud rate of 25600 is always used, and since it is possible to accidentally change the baud rate when adjusting the parameters using the HLKRadarTool, resulting in 2A obtaining incorrect positional information or not being able to obtain it, then it is necessary to try resetting the baud rate.

Since this is an unreadable parameter, it can only be judged based on the resultant anomaly and forced to be reset.

But for most cases, as long as this baud rate is not modified, there is no need to worry about this problem occurring.

Even if it occurs, you can refer to the method in the picture below to reset it.