Contactless Card Read/Write Module
(
YW-201
)
User’s Manual
18
GND GND
19
PORTSEL
Communication Protocol Selector
( 0: IIC, 1:
UART )
20
NC Not
Use
21
NC Not
Use
31
TX1
Antenna Output 1
32
TX2
Antenna Output 2
Table 1
4.2 Dimension
Pic 2
5
Protocols
5.1 UART Protocols of Commands
Uart Protocols of Commands use data blocks.The format of data block :
1)
Format of TXD
(
MCU
→
YW-201 Module
)
[STX]
[LEN]
[CMD]
[DATA] [CHK]
[ETX]
Description
0x02
Package
Length
Commad
The
Content of
n bytes
CheckSum 0x03
Number of
Byte
1 1 1 n
1 1
Table 2
Contactless Card, RFID… Page 5 / 15
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