
www.ewattch.com
9
wattch
Payload descriptions
The SQUID-LoRaWAN transmits its data in a raw format on different public and private
LoRaWAN networks.
The section below shows you how to decode the frames (Payload) sent by the SQUID.
Periodic frames
The periodic frames contain the data measured by the SQUID.
Example of a periodic transmitted frame (HEXADECIMAL):
0025
48
509F06
A03E0D
407D1A
F56900
EAD300
D4A701
509F06
A03E0D
407D1A
F56900
EAD300
D4A701
Explanation of the frame structure:
Index
(in bytes)
Data sent periodically
Other possible values:
0x01: Data sent during an event
0x10: Sensor status data
Number of bytes sent.
0x25 in hexadecimals gives 37 bytes
(excluding header: Frame type and
Payload Size)
Type of object
0x48: SQUID (12 MEASUREMENT
CLAMPS)
04-june
Channel 1
509F06
Channel 1: 4,340Ah
07-sept
Channel 2
A03E0D
Channel 2: 8,680Ah
10-dec
Channel 3
407D1A
Channel 3: 17,360Ah
13-15
Channel 4
F56900
Channel 4: 271.2Ah
16-18
Channel 5
EAD300
Channel 5: 542.5Ah
19-21
Channel 6
D4A701
Channel 6: 4,340Ah
•••
•••
•••
37-39
Channel 12
D4A701
Channel 12: 4,340Ah
Name
Example
Description
1
Frame type
00
The data below are in an unsigned 24-bit format and little-endian encoded.
The multiplying coefficient is x 10 mAh
Example of conversion: 0x509F06 => 0x069F50 => 434000 decimal => x10mAh =>
4,340,000mAh or 4,340Ah and to have the power in VAh, it must be multiplied by the network
2
Payload size
25
3
Object Type
48