omegaTemp

This project was created to obtain temperature from a sensor and send it to your own influxDB.

My choices are

• As a core (CPU/network/power) I'm using an Onion Omega 2+
• The sensor chosen is BME280
• Scripting languages: sh and Python
• Python script: BME280.py (also included in this repo)

Software requirements

• Python2
• curl
• bzip2
• sh
• awk
• Out of this scope: Your own and reachable Influxdb server.

Install requirements

opkg update
opkg install python-light
opkg install pyOnionI2C
opkg install curl

How to run the project?

1. Configure Onion Omega to connect to your network/Internet.
2. Install required software if missing.
3. Place this code on your Onion Omega disk.
4. Place your configuration to the files.
5. Configure crontab to execute save_data.sh.
6. Configure crontab to execute send_data.sh. You can set this script every hour for few battery usage.

Crontab example

You can edit the crontab with crontab -e command.

*/1 * * * * /path/to/script/save_data.sh
*/15 * * * * /path/to/script/send_data.sh

What I expect from the project

• Have my own sensors and my own data server to protect my privacy and the rights over my data.
• A way to filter this sensor from other sensors.
• Battery usage is not solved, it is planned to use all time AC power.

Enjoy the project :)

The results are great if you render the data in Grafana.