Table of Contents
Advertisement
Chengdu Ebyte Electronic Technology Co.,Ltd.
Overheating
Overvoltage and
overheating
Unplugged antenna
2. The module will temporarily turn off the RF transmitting function under abnormal working condition until it returns to
normal working condition, then it will restart to turn on the transmitting.
3.The module will carry out cyclic log printing (can be turned on/off) every 500ms in the abnormal state to inform the
user of the current abnormal working state, and the format of the print log is shown in the following table:
Abnormal working condition
Over Temperature!!!
Over Voltage & Over Temperature!!!
WARNING!!!: No antenna
Note: Exception log printing enable bit (bit2 of instruction register 04H) 0: off 1: on Default is 0 (off)
7. Working mode
E90-DTU has two working modes, MOD pin is suspended, general mode, i.e. the radio communicates normally; MOD
pin is grounded, configuration mode.
Type
General Mode
Configuration
The user can access the registers through the serial port to control the working state of the radio,
Mode
7.1 General mode
Type
transmitter
reception (of
The module's wireless reception function is switched on, and wireless data will be output via
transmitted signal)
Copyright ©2012–2024，Chengdu Ebyte Electronic Technology Co.,Ltd.
Module temperature > 120°C
Supply voltage >13V and module
temperature >120°C
Transmission without antenna
Under Voltage!!!
Over Voltage!!!
Serial on, wireless on, transparent transmission (factory default mode)
and the user can configure the module through the upper computer configuration software.
Module operates in general mode (MOD pin suspended state)
The user can enter data through the serial port and the module will initiate wireless
Print Log Format
Under Voltage!!!
Over Voltage!!!
Over Temperature!!!
Over Voltage & Over Temperature!!!
WARNING!!!: No antenna
marginal notes
transmission.
the serial port pins when received.
E90-DTU(xxxSL42) User Manual
2s blinking once
Constant
Constant light
13
Advertisement
Table of Contents
