Command line tools written in C for the MQTT-SN (MQTT for Sensor Networks) protocol.
- QoS 0 and -1
- Keep alive pings
- Publishing retained messages
- Publishing empty messages
- Subscribing to named topic
- Clean / unclean sessions
- Manual and automatic client ID generation
- Displaying topic name with wildcard subscriptions
- Pre-defined topic IDs and short topic names
- Packets must be 255 or less bytes long
- No Last Will and Testament
- No QoS 1 or 2
- No Automatic gateway discovery
Just run 'make' on a POSIX system.
Usage: mqtt-sn-pub [opts] -t <topic> -m <message>
-d Enable debug messages.
-h <host> MQTT-SN host to connect to. Defaults to '127.0.0.1'.
-i <clientid> ID to use for this client. Defaults to 'mqtt-sn-tools-' with process id.
-m <message> Message payload to send.
-n Send a null (zero length) message.
-p <port> Network port to connect to. Defaults to 1883.
-q <qos> Quality of Service value (0 or -1). Defaults to 0.
-r Message should be retained.
-t <topic> MQTT topic name to publish to.
-T <topicid> Pre-defined MQTT-SN topic ID to publish to.
Usage: mqtt-sn-sub [opts] -t <topic>
-1 exit after receiving a single message.
-c disable 'clean session' (store subscription and pending messages when client disconnects).
-d Enable debug messages.
-h <host> MQTT-SN host to connect to. Defaults to '127.0.0.1'.
-i <clientid> ID to use for this client. Defaults to 'mqtt-sn-tools-' with process id.
-k <keepalive> keep alive in seconds for this client. Defaults to 10.
-p <port> Network port to connect to. Defaults to 1883.
-t <topic> MQTT topic name to subscribe to.
-T <topicid> Pre-defined MQTT-SN topic ID to publish to.
-v Print messages verbosely, showing the topic name.
The Serial Port bridge can be used to relay packets from a remote device on the end of a serial port and convert them into UDP packets, which are sent and received from a broker or MQTT-SN gateway.
Usage: mqtt-sn-serial-bridge [opts] <device>
-b <baud> Set the baud rate. Defaults to 9600.
-d Enable debug messages.
-dd Enable extended debugging - display packets in hex.
-h <host> MQTT-SN host to connect to. Defaults to '127.0.0.1'.
-p <port> Network port to connect to. Defaults to 1883.
MQTT-SN Tools is licensed under the MIT License.
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