Register Read And Write Control; Command Format - Ebyte E90-DTU User Manual

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7. Register read and write control

7.1 Command format

In configuration mode（mode 2：M1=OFF，M0=ON） ，supported commands are as follows（only 9600，8N1 are
available） ：
Command
NO
format
1 C0 + parameters
2 C1+C1+C1
3 C2+ parameters
4 C3+C3+C3
5 C4+C4+C4
6 E2+E2+E2
7 E3+E3+E3
Working parameter reading
Instruction format
C1+C1+C1
Version number read
Instruction format
C3+C3+C3
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Send C0+5 bytes of working parameters in hexadecimal format, a total of 6 bytes, must be sent
continuously (save when power off)
Three C1s are sent in hexadecimal format, and the module returns the saved parameters, which must be
sent continuously.
Send C2+5 bytes in hexadecimal format. Working parameters, 6 bytes in total, must be sent continuously
(not saved after power failure)
Three C3s are sent in hexadecimal format, and the module returns version information, which must be
sent continuously.
When sending three C4s in hexadecimal format, the module will generate a reset and must be sent
continuously.
In transparent transmission mode, sending three E2s in hexadecimal format, the module will enter a 10S
clock configuration window period, within which 10S clocks can configure the corresponding parameters
of the module through the C0 command, after the 10S clock is over, the module uses the new parameters
working.
In transparent transmission mode, three E3s are sent in hexadecimal format, and the corresponding
module that receives this instruction will enter a 10S configuration window period, within which 6 bytes
of C0 command parameters can be sent to the air configuration module After 10S minutes, the receiving
module will use the new parameters to work.
Under configuration (M0=1, M1=1), send a command (HEX format) to the module serial port: C1 C1 C1,
The module will return the current configuration parameters, such as: C0 00 00 13 18 04.
Under configuration (M0=1, M1=1), send a command (HEX format) to the module serial port: C3 C3 C3,
The module will return the current configuration parameters, such as: C3 00 47 10 0C 09 01 00; where 00
28 represents the module model (E28 series), 10 represents the version number, 0C represents the module
power, and other parameters represent other characteristics of the module.
Description
Detailed description
Detailed description
E90-DTU（2G4L27）User Manual
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