IoT into the Wild
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10. LoRaWAN Downlink Command
10.1 Set the Data Uplink Interval
(1) Using the Network Server’s portal or API to send downlink command, then the Node will
respond to the ack. The downlink command takes effect and responds the next time the
node uploads data.
(2) Downlink as follow:
Command ID low byte, you can customize the values, it allows each command ID
to be the same
Command ID high byte, you can customize the values, it allows each command ID
to be the same
Data interval low byte, you can set the data interval, unit: minute
Data interval high byte, you can set the data interval, unit: minute
CRC low byte, it’s calculated by the CRC-16/CCITT
CRC low byte, it’s calculated by the CRC-16/CCITT
(3) When you send the downlink command, the Node responds to the ack command.
Command ID low byte, it is the same as the downlink command
Command ID high byte, it is the same as the downlink command
If the downlink command is in force, it responds 0x01, else it responds 0x00
CRC low byte, it’s calculated by the CRC-16/KERMIT
CRC low byte, it’s calculated by the CRC-16/ KERMIT
(3) Use the FPort = 2
CRC Tool: https://crccalc.com/ , select the algorithm of CRC-16/KERMIT.
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