Internet of Things: Difference between revisions
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=== Script service setup === | === Script service setup === | ||
from: http://www.diegoacuna.me/how-to-run-a-script-as-a-service-in-raspberry-pi-raspbian-jessie/ | |||
/lib/systemd/system/awsiotpub_temp.service | /lib/systemd/system/awsiotpub_temp.service | ||
| Line 38: | Line 40: | ||
WantedBy=multi-user.target | WantedBy=multi-user.target | ||
</pre> | </pre> | ||
enable: | |||
<pre> | |||
sudo chmod 644 /lib/systemd/system/hello.service | |||
chmod +x /home/pi/hello_world.py | |||
sudo systemctl daemon-reload | |||
sudo systemctl enable hello.service | |||
sudo systemctl start hello.service | |||
</pre> | |||
on creating rules with variable substitution | |||
for example if you want to post data from device X to an elasticsearch index with id X | |||
you should generate a new uuid id for each reading: | |||
"id": "${newuuid()}" | |||
== Guides == | == Guides == | ||
Revision as of 15:50, 20 February 2017
aka IoT
I have two raspberry pis that i'd like to wire up using AWS IoT
AWS Iot Notes
AWS Setup Notes
http://docs.aws.amazon.com/iot/latest/developerguide/policy-actions.html
aws iot list-policy-principals --policy-name mypolicy aws iot list-principal-policies --principal ?? aws iot list-principal-things --principal ?? aws iot list-thing-principals --thing-name mypi1
principal means certificate.
THINGS <-> PRINCIPAL ( cert ) <-> POLICY
best guid so far:
https://www.hackster.io/mariocannistra/python-and-paho-for-mqtt-with-aws-iot-921e41
Script service setup
from: http://www.diegoacuna.me/how-to-run-a-script-as-a-service-in-raspberry-pi-raspbian-jessie/
/lib/systemd/system/awsiotpub_temp.service
[Unit] Description=IoT AWS Sensor Publisher After=multi-user.target [Service] Type=simple ExecStart=/usr/bin/python /home/pi/python-paho-mqtt-for-aws-iot/awsiotpub_temp.py Restart=on-abort [Install] WantedBy=multi-user.target
enable:
sudo chmod 644 /lib/systemd/system/hello.service chmod +x /home/pi/hello_world.py sudo systemctl daemon-reload sudo systemctl enable hello.service sudo systemctl start hello.service
on creating rules with variable substitution
for example if you want to post data from device X to an elasticsearch index with id X
you should generate a new uuid id for each reading:
"id": "${newuuid()}"
Guides
- https://dzone.com/refcardz/getting-started-with-mqtt
- What is mqtt?
- https://www.hackster.io/mariocannistra/python-and-paho-for-mqtt-with-aws-iot-921e41
- I like this guide because it gives an example subscriber and an example publisher.
References
MQ Best practices http://www.hivemq.com/blog/mqtt-essentials-part-5-mqtt-topics-best-practices
