how can i write a class for this codes?

hi
i want connect to a fingerprint sensor "suprema";
i want use one mode that called Enroll by Scan;

for that , i have some command like this:
that used when i want use automatic id mode for fingerprint;

 Start Code: 40 h
Command : 05 h
Parameter : ( Finger ID) 00 h , 00 h , 00 h , 00 h
Size : 00 h , 00 h , 00 h , 00 h
Flag : 79 h
Check Sum : 40h + 05 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 79 h = BE h
End Code : 0A h

i must give this information to the sensor;

and sensor return me this information:

 Start Code: 40 h
Command : 05 h
Parameter : ( Finger ID That Save ) xx h , xx h , xx h , xx h
Size : 00 h , 00 h , 00 h , 00 h
Error : 61 h or 62 h or 63 h or 6B h or 6C h or 6D h or 6E h or 72 h or 76 h
that error code has a table to know any code; 
Check Sum : 40h + 05 h + xx h + xx h + xx h + xx h + 00 h + 00 h + 00 h + 00 h + xx h = xx h
End Code : 0A h

and i must write a class that i can use this information on it... i must give information to sensor and i must connect to sensor and sensor give me some information and i must describe that every information has what mean;

now i write this code only :

 byte[] b = new byte[15];
            b[0] = 0x40; //start byte
            b[1] = 0x05; //command
            b[2] = 0x00; //paramid
            b[3] = 0x00;
            b[4] = 0x00;
            b[5] = 0x00;
            b[6] = 0x00; //size
            b[7] = 0x00;
            b[8] = 0x00;
            b[9] = 0x00;
            b[10] = 0x79; //flag
            b[11] = 0xBE; //checksum
            b[12] = 0x0A; //end code

i don't know what can i do... please help me
thanks

1 Reply

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Sam Hobbs16y ago
Please refer to the documentation of the device. Without the documentation of the device, it is unlikely anyone here can help you. If after reading the documentation of the device thoroughly and studying any sample code available for it, if you have more specific questions, you will likely get help form someone in these forums eager to help.
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