Ebyte E90-DTU(400SL47), Manual

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Chengdu Ebyte Electronic Technology Co., Ltd E90-DTU(400SL47) User Manual
Copyright ©2012-2023, Chengdu Ebyte Electronic Technology Co., Ltd 13
overheating module temperature >120
°
C
unplugged antenna Send without antenna Ever Bright
2.
The module will temporarily turn off the RF transmitter function under abnormal working condition, and will restart
the transmitter function when it returns to normal working condition.
3.
The module will print the cycle log every 500ms in the abnormal state (can be turned on/off) to inform the user of the
current abnormal working state, the format of the print log is shown in the table below:
Note: Exception log printing enable bit (bit2 of instruction register 04H) 0: off 1: on Default is 0 (off)
7 Working modalities
E90-DTU has two working modes, MOD pin is suspended, general mode, i.e. the radio communicates normally;
MOD pin is grounded, configuration mode.
form marginal notes
General mode Serial on, wireless on, transparent transmission (factory default mode)
Configuration
Mode
The user can access the registers through the serial port to control the working state of the
radio, and the user can configure the module through the upper computer configuration
software.
7.1 General model
typology Module operates in general mode (MOD pin suspended state)
emit (a particle)
The user can enter data through the serial port and the module will initiate wireless
transmission.
reception (of
transmitted signal)
The module's wireless reception function is turned on, and wireless data will be output via
the serial port pins when received.
Abnormal working condition Print Log Format
phase sequence Under Voltage!!!
overpressurization Over Voltage!!!
overheat (e.g. an economy) Over Temperature!!!
Overpressure and overheating Over Voltage & Over Temperature!!!!
Unconnected antenna WARNING!!! : No antenna