Data Sheet

W M B T 0 1 ( - s , - s c ) D a t a s h e e t
10
/
36
13
UART_CTS
UART flow control, input, Clear To Send, Pull up
prohibited sending data, pull down to send. Pull down if
not used.
GPIO3
14
CONN/DISC
Configurable GPIO, Default DICS PIN
Pull up into working mode. Pull down more than 100mS
to disconnect the Bluetooth connection. NC if not used.
GPIO16
15
UART_RTS
UART flow control, output, Request To Send.
When the Bluetooth serial port buffer is full, this pin will
be pulled up, notify the master computer to stop serial
port sending; When the buffer is sufficient, this pin will
be pulled down and allow the master computer to
continue to send data through the serial port. NC if not
used.
GPIO2
16
GPIO5
Configurable GPIO, Default conn_status PIN
Bluetooth Connected is high, unconnected is low. NC if
not used.
17/18
GPIO4
Configurable GPIO, NC if not used.
19
RESET
Hardware reset
NC if not used; pull down time> 50ms if used.
20
UART_RX
UART0 data receive
GPIO1
21
UART_TX
UART0 data send
GPIO0
22
GPIO19
Configurable GPIO, NC if not used.
23
GPIO20
Configurable GPIO, NC if not used.
24
GPIO21
Configurable GPIO, NC if not used.
25/26
GPIO22
Configurable GPIO, NC if not used.
27
DP
USB DP, NC if not used.
28
DM
USB DM, NC if not used.
29
GND
Ground
30
WMBT01-s(c):ANT
WMBT01-s, WMBT01-sc:External antenna
WMBT01:NC
WMBT01:Built-in ceramic antenna
3.2. PIN assignment
Table 3 PIN assignment
PIN name
Function0
mode
Function1
mode
Function2
mode
Function3
mode