Chengdu Ebyte Electronic Technology Co., Ltd.
E220-900T30S User Manual
Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
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5.6.1 Indication of UART output
To wake up the external MCU
5.6.2 Indication of wireless transmitting
Buffer empty: the data in the internal 400-byte buffer is written to the wireless chip (automatic sub-packaging);
When AUX=1, the user continuously initiates data less than 400 bytes without overflow;
When AUX=0, the buffer is not empty: the data in the internal 400-byte buffer has not been written to the wireless
chip and the transmission is started. At this time, the module may be waiting for the end of the user data to time out,
or the wireless sub-packet transmission is in progress.
[Note]: When AUX=1, it does not mean that all serial port data of the module has been transmitted wirelessly, and
the last packet of data may be being transmitted.
5.6.3 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode
