FPORT 0x00: MAC Commands

DOWNLINK

BYTE

BIT RANGE

SIZE

OFFSET

ABBREVIATION

DETAILS

1

DB0.7…0.0

8

0

DevStatusReq

Returns the battery level of the end-device

0x06 = Device Status Request

Response is communicated in field “opts” (not in an FPORT 0x00 Uplink)

BYTE

BIT RANGE

SIZE

OFFSET

ABBREVIATION

DETAILS

1

DB0.7…0.0

8

0

0x06

2

DB1.7…1.0

8

DevStatusAns

Battery Level

Device Response

Battery Level

0

The device is connected to an external power source

1

2.20 V

1 <= d <= 254

254

2.64 V

255

The device was not able to measure the battery level

3

DB2.7…2.0

8

16

DevStatusAns

Demodulation Margin

SNR in dB rounded to the nearest integer value for the last successfully received DevStatusReq command