Chengdu Ebyte Electronic Technology Co., Ltd.
E22-xxxT22S series product user manual
Copyright©2012–2024
, Chengdu Ebyte Electronic Technology Co., Ltd.
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5.4 Listening Address
For example: Set the address of module A as 0xFFFF, and the channel as 0x04;
When module A is the receiver, it can receive the data sent from all modules under channel 0x04, the purpose of listening is
realized.
5.5 Module Reset
After the module is powered on, AUX will immediately output low level, perform hardware self-check, and set the working
mode according to user parameters;
During this process, AUX keeps low level, and AUX outputs high level after completion, and starts to work normally according
to the working mode formed by M1 and M0; Therefore, the user needs to wait for the rising edge of AUX as the starting point for
the module to work normally.
5.6 Detailed explanation of AUX
AUX Pin can be used as indication for wireless TX &RX buffer and self-check.
It can indicate whether there is data not transmitted via wireless way, or whether the received data has not been sent through
UART, or whether the module is still in the process of self-check initialization.
5.6.1 Indication of Serial port data output
Used to wake up the external MCU from sleep;
5.6.2 Indication of Wireless transmission
Buffer empty: the data in the 1000-byte buffer in the module is written to the wireless chip (automatically sub-packaging);
When AUX=1, if user continuously sends data less than 1000 bytes, it won’t overflow;
When AUX=0, the buffer is not empty: It means data in the module's internal 1000-byte buffer has not been written to the
wireless chip and has not been transmitted. At this time, the module may be waiting for the end of user input data (subject to
timeout), or the module is going on with wireless sub-packet transmission.
