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ATIM_ACW-THAQ_UG_FR_V1.7
Keep alive frame
The life frame is sent at regular intervals according to the configuration applied (by default 4 days) and contains the
battery levels of the product when empty (the product does nothing) and when charging (the product is transmitting
a frame radio).
Following this header are 4 bytes, 2 for the empty battery level and 2 for the charging battery level.
The frame is therefore split as follows: 0xAABBBBCCCC
0xAA being the frame header (always equal to 0x81), 0xBBBB the empty battery level (value in millivolts, MSB
coding) and 0xCCCC the charging battery level (value in millivolts, MSB coding)
EXAMPLE
0x81 0d24 0c68
0d24 : empty battery level = 3364 mV therefore 3.364 V
0c68 : battery charging level = 3176 mV therefore 3.176 V
Byte 1 - Header
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
New
generation = 1
Timestamp
= 0
Measurem
ent frame
= 0
Reserved =
0
Keep alive frame = 0x01
