Chengdu Ebyte Electronic Technology Co.,Ltd.
E180-Z8910SP User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
15
6. Application function and command configuration
6.1 Function pins
6.1.1 LINK detailed explanation
The LINK pin indicates the current network status of the module. After the device is successfully connected to the
network, the current pin is pulled high. When the device has no network or the parent node is lost, this pin is pulled low.
The external device can query the device network status through the pin level.
6.1.2 Detailed WAKE
The WAKE pin is mainly used to wake dormant terminals. It defaults to a high level when powered on. When the pin is
pulled low externally, the dormant terminal device will continue to be awakened. When the pin is released externally, it
returns to high level and enters sleep ; Sleep time is determined by the duration of external pulling down the pin; for
non-sleeping devices, this pin is meaningless;
6.1.3 Detailed AUX
The AUX pin indicates the current working status of the device. When the pin is low, it indicates that the device is busy;
when the pin is low, it indicates that the device is idle; when the device receives data, the module will pull the AUX pin
low for AUX_delaytime, and the serial port will start outputting. Data, used to wake up the external control device,
AUX_delaytime defaults to 4ms, which can be changed by the serial port command and the customer decides according
to the wake-up time of the main chip;
6.1.4 Detailed ACK
The ACK pin is used to indicate the status of the last user data transmission. The pin is pulled low before the
transmission is started, and the pin is pulled high after the transmission is successful. The user can judge whether the data
has arrived successfully through the pin state. This pin function cannot instruct the coordinator to send a broadcast
message. (Only for non-sleeping terminals).
6.1.5 Detailed explanation of UART_BAUD_RESET
The UART_BAUD_RESET pin is used to reset the device baud rate. It defaults to a high level after power-on. In any
mode, the module serial port parameters will be restored to the default 115200 and 8N1 by pulling this pin down for
more than 1000ms.
Function pin
Pin port
LINK
PIO21
WAKE
PIO1
AUX
PIO16
ACK
PIO6
UART_BAUD_RESET
PIO3
