Manual

UART Fingerprint Sensor (C)
V1.0 www.waveshare.com 8 / 18
Notes：
Length of Eigenvalues(Len-) is 193Byte
Data packet is sent when fifth byte of ACK data is ACK_SUCCESS
7. Delete user（CMD/ACK both 8 Byte）
Byte
1
2
3
4
5
6
7
8
CMD
0xF5
0x04
User ID
(High
8Bit )
User ID
(Low 8Bit )
0
0
CHK
0xF5
ACK
0xF5
0x04
0
0
ACK_SUCCESS
ACK_FAIL
0
CHK
0xF5
8. Delete all users（CMD/ACK both 8 Byte）
Byte
1
2
3
4
5
6
7
8
CMD
0xF5
0x05
0
0
0：Delete all users
1/2/3: delete users
whose permission is
1/2/3
0
CHK
0xF5
ACK
0xF5
0x05
0
0
ACK_SUCCESS
ACK_FAIL
0
CHK
0xF5
9. Query count of users（CMD/ACK both 8 Byte）
Byte
1
2
3
4
5
6
7
8
CMD
0xF5
0x09
0
0
0：Query Count
0xFF：Query
Amount
0
CHK
0xF5
ACK
0xF5
0x09
Count
/Amount
(High
8Bit )
Count
/Amount
(Low
8Bit )
ACK_SUCCESS
ACK_FAIL
0xFF(CMD=0xFF)
0
CHK
0xF5
10. 比对 1:1（CMD/ACK both 8Byte）
Byte
1
2
3
4
5
6
7
8
CMD
0xF5
0x0B
User ID
(High 8 Bit )
User ID
(Low 8 Bit)
0
0
CHK
0xF5
ACK
0xF5
0x0B
0
0
ACK_SUCCESS
ACK_FAIL
ACK_TIMEOUT
0
CHK
0xF5
11. Comparison 1：N（CMD/ACK both 8 Byte）
Byte
1
2
3
4
5
6
7
8
CMD
0xF5
0x0C
0
0
0
0
CHK
0xF5
ACK
0xF5
0x0C
User ID
(High 8 Bit )
User ID
(Low 8 Bit )
Permission
(1/2/3)
ACK_NOUSER
ACK_TIMEOUT
0
CHK
0xF5
12. Query Permission（CMD/ACK both 8 Byte）