(3) The real-time speed of the motor is composed of byte32 and byte33. The calculation formula 
is as follows: Motor real-time speed = value 
For example, when byte32 = 0x58 and byte33 = 0x02, r_rpm=0x0258=600rpm. 
(4) Other registers are used for internal debugging. 
B.16 GPRMC Data Packet-ASCII Code Data Type   
86 bytes are reserved for the GPRMC data packet. According to the length of the GPRMC message 
output by the external GPS module, the received GPRMC message is self-adaptively stored and can 
be analyzed and viewed in ASCII code.