Battery Level (Vbat) Monitoring; Sensor (Vout) Power Configuration; Wireless Parameters; Basic Parameters - Ebyte E90-DTU User Manual

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support configuration is 1-247 (factory default: 1), when forgetting the device address At this time, you can use
address 1 in the configuration mode (see "DIP Configuration Instructions") to read the device address information
stored in the holding register 07E8H.

4.2.3 Battery level (VBAT) monitoring

By obtaining the 32-bit single-precision floating-point value stored in the holding registers 00C8H and 00C9H,
the unit is V, the radio detects the power in a period of 10s in non-low power mode, and the low power mode needs
to configure the detection period (holding register 1B5CH is used to store cycle, the factory default is 10 minutes).
[Note] Single-precision floating-point values are stored in standard IEEE754 format.
It supports DC input to charge the battery, using 120mA constant current charging, and the preset charging
voltage is 4.2V.

4.2.4 Sensor (VOUT) power configuration

The sensor (VOUT) power supply can select the power source through the configuration holding register
1B5DH, which is configured as 0x00 (ie synchronous DC power supply, the output voltage is DC 8-28V), and
configured as 0x01 (ie synchronous VBAT input power supply);
[Note] The total current of the load connected through VOUT should be <1A. Overload use will cause
irreversible damage to the device. In addition, the output power of the device is related to the input power supply
and has nothing to do with the device.

4.3 Wireless parameters

4.3.1 Basic parameters

(1) LORA device address
The device address is used to distinguish different devices when sending and receiving at a fixed point. For
details, see the chapter "Sending at a fixed point". The same address should be configured for transparent
transmission, otherwise data cannot be sent and received normally.
0xFFFF (ie 65535) is the broadcast address, which can monitor all data on the same channel.
(2) LORA network address
The network address is used to distinguish different communication networks, and the network addresses of
devices that communicate with each other should be set to the same parameters.
The low-power radio cannot be used as a repeater, and can be used with the same series of digital radios (for
example: E90-DTU (400SL30) as a repeater to relay data between low-power radios).
When the relay is in use, the low-power radio cannot use the low-power mode, otherwise it will not be able to
send and receive data normally.
(3) Airspeed class
The higher the airspeed, the faster the transmission, the closer the transmission distance, the default is 2.4Kbps,
and the airspeeds of the devices that communicate with each other must be consistent;
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