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pin is high, the device is idle; when the device receives data, the module will pull the AUX pin low after AUX_delaytime,
and the serial port will start outputting Data, used to wake up the external control device, AUX_delaytime is 4ms by
default, which can be changed by the serial port command, and the customer can decide according to the wake-up time of
the main chip;
6.1.4 ACK
ACK pin is used to indicate the status of the last user data transmission,
started. After the transmission is successful, the pin is pulled high. The user can judge whether the data is successfully
arrived by the status of the pin. This pin function does not instruct the coordinator to send a broadcast message.
6.1.5 TOUCHLINK
pin, which is continuously pulled low for more than 3000ms, will initiate a ZLL network setup or join
TOUCHLINK
request. ZLL's touch link protocol includes an initiator and a target. The initiator is End-device and Sleep-End-device.
The target is generally a router. When the touch link pin is continuously pulled down for more than 3000ms, the initiator
will send a network establishment or joining request to the target.
6.1.6 UART_BAUD_RESET
UART_BAUD_RESET pin is used to reset the baud rate, The default level is high when the device is powered on.
In any mode, the pin of the module is pulled down for more than 1000ms. The serial port parameters will be restored
to the default 115200 and 8N1.
6.2 Wireless remote configuration function
The module supports remote configuration function. The 2-byte wireless configuration ID is identified by A8 8A by
default. The user can modify the remote configuration ID.
are wireless configuration ID, the module judges that the data packet is a remote configuration command and executes the
corresponding command operation. The data packet will not be output through the serial port.
6.3 Touch link Functional application
6.3.1 Touch link Introduction
Touch link belongs to the standard networking mechanism in ZigBee Light Link (ZLL) protocol. Touch link is a
contact connection. When two modules are close to each other within a certain range, touch link is activated by button or
command. A ZigBee communication network is established between the two modules.
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Function pin
LINK
WAKE
AUX
ACK
TOUCHLINK
UART_BAUD_RESET
The pin is pulled low before the transmission is
Pin port
PF7
PD14
PD15
PB13
PD13
PB12
When the first two bytes of wireless air data received by the module
E180-ZG120A User Manual
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