Chengdu Ebyte Electronic Technology Co.,Ltd
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Chengdu Ebyte Electronic Technology Co., Ltd.
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Onekey recovery of baud rate: The module supports onekey recovery of baud rate when users forget the baud rate.
The baud rate is 115200(default).
Serial port receiving wake-up: Support serial port receiving wake-up function. When the module is in sleep state, it
will wake up when receiving a frame of data less than or equal to 10 bytes. This data is wake-up frame used for
wake-up module and will not be treated as data processing;
Module restore: Users can restore the module via UART commands.
Recover factory setting: Users can recover the factory setting via UART commands.
Configuration over air: Users can use the configuration over air command to remotely configure other devices in
network.
1.3 Device type introduction
There are four types of logical devices in ZigBee Network: Coordinator, Router, End-Device, and Sleep-End-Device.
A ZigBee network consists of one Coordinator and multiple Routers and multiple End-Devices (the end nodes can be
divided into Sleep-End-Device and End-Device).This product only supports End-Device (non-sleep end) and Sleep-
End-Device (sleep end) two device types, Coordinator and Router two types use E180-ZG120A / B products from our
company.
1.3.1 End-Device
The main task of the device is to send and receive messages, and other nodes are not allowed to connect with the
devices. The End-device is always in working state, and can receive and transmit data at any time.
1.3.2 Sleep-End-Device
The Sleep-End-Device enters the sleep state when there is no data receiving and sending, and the sleep current is as
low as about 16uA.
When wireless data transmission or command operation is needed, wake-up frame shall be sent through serial port
first, and the length shall be 10 bytes (it is recommended to wake up with “FF FF FF FF FF FF FF FF FF FF” 10 bytes of
"FF"). , The wake-up time lasts for the Uart_holdtime time, during which the serial port data (configuration command,
payload) can be processed. When a frame of serial port data is successfully received, the wake-up timeout counter will be
refreshed, and the wake-up duration will go further by Uart_holdtime, otherwise the device will go to sleep again.
Uart_holdtime defaults to 1000ms and supports HEX command to change its value.
Sleep terminal wakeup can also be awakened through the function pin WAKE. WAKE defaults to high level. Pull down
the WAKE pin to wake up the module continuously, and release the WAKE pin to restore the default high level and the
module resumes sleep.
When there is data needs to be received, it is received through periodic wake-up. The longer the wake-up cycle is set,
the later the reception will be. The wake-up cycle must be set less than 30 seconds. If you only need to upload data, you
can set the wake-up cycle to be greater than 30 seconds or longer to reduce power consumption (default is 5 minutes),
such as battery powered sensors.
