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5.3 Downlink Commands
IOT-CPANEL supports downlinkcommands to configure the device. Application port is 85 by
default.
Note: Since the device type is class A, it only receives downlinks when the device upload battery
level or buttonmessage to network server.
Channel
03 (Set Reporting Interval)
35 (Set LoRa D2DKey)
ff
36 (Set LoRa D2DSpreading
Factor and Frequency)
Example:
1. Set reportinginterval as 20 minutes.
Channel
03 (Set Reporting
ff
Interval)
2. Set LoRa D2D key as 12345678123456780000000000000000.
Channel
ff
35 (Set LoRa D2DKey)
3. Set LoRa D2Dspreading factor as DR5(SF7) and frequency as 505.7MHz.
Channel
36 (Set LoRa D2D
ff
Spreading Factor and
Frequency)
Type
ff03b004
Type
b0 04=>04b0=1200s
ff351234567812345678
Type
12 34 56 78 12 34 56 78
ff3605a05e241e
Type
Byte 1: 05 (DR5)
Byte 2: a0 5e 24 1e =>1e 24 5e
a0=505700000Hz (505.7 MHz)
-END-
Description
2 Bytes, unit: s
8 Bytes, other bytes are fixed as 0.
Byte 1: Spreading factor
Byte 2-3:Frequency, unit: Hz
Value
=20minutes
Value
Value
16
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