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8
Pins
Signals
Description
1 ~
6
NC
Reserved
7
RXD
UART Receive (Input), connect with TXD of host processor or MCU
8
TXD
UART Transmit (Output), connect with RXD of host processor or MCU
9
NC
Reserved
10
/RUN
The status of GS11-MT (Output), and need a 10K pull-up resistor on user board.
Logic 1: The GS11-MT module is in starting.
Logic 0: The module’s start has been completed.
If this pin is pull down to low voltage before starting the module(by using a 1K
pull-down resistor), the module will start with default IP address (192.168.0.11), and
this mode is used to update the firmware of GS11-MT.
11
BAUD2
Set the UART baud rate (Input), see the following table.
12
BAUD1
13
BAUD0
14
/RESET
Reset signal (Input), Active low.
15
+3.3V
+3.3V DC power Supply
16
GND
GND power Supply
17 ~
19
NC
Reserved
20
/DATAEXCH
Data Exchange (Output), and need a 10K pull-up resistor on the user board.
Logic 1: The module is in non-data exchange state (such as start state, waiting for
initialization state that waits users to send messages to initialize, start the TCP
protocol stack, etc.)
Logic 0: The module is ready for data exchange.
2.4 UART Baud Rate
UART baud rate settings are as follows:
