COMMON MESSAGES
14
Wireless Acceleration Sensor User Guide
Bytes
Description
0
Current Sub-Band, sub-band currently joined and used for communication to the gateway and
network server. Value ranges from 1-8 for US915. For other regions, value depends on available
channels.
1
RSSI of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two’s complement
format.
2
SNR of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two’s complement
format.
Downlink Messages
Downlink messages are from the cloud to the sensor and are used to configure the sensor. The sensor initiates
downlink messages, since the sensor is typically sleeping with the radio turned off.
For LoRaWAN devices, a downlink can be received after any uplink within the receive window.
The following messages can be sent back to the sensor upon a downlink request.
Command
Payload
Description
0x00
Not used
Not used
0x01
4 bytes
General configuration
--
0-7 bytes
Sensor configuration, refer to the
Sensor Specific Messages
chapter
0xfc
3 bytes
Advanced configuration
General Configuration
Use the general configuration command to configure parameters that apply to all sensor types.
Byte
Description
0x00
Disable sensor events
0x01
Radio config
0x02
Supervisory period. Default 19 hours.
0x03
Sampling rate
Disable Sensor Events
The following table shows the disable sensor event bit definitions.
Bit
Description
7:1
Not used
0
Disable all sensor events
