@romoe Sorry to hear about your tomato plants!
Its been awhile since I last posted but I come back with good news!
During the midst of cleaning up my code for release, I ended up re-designing and re-writing everything including the Android app. The Plant Friends system is now expandable, adaptable and easy to build! The system looks completely different now but uses common parts. Of-course it still uses the Raspberry Pi and the Moteino.
I also wrote an extensive how-to-tutorial-instructable so beginners can have a stab at building a Plant Friends system of their own. I commented almost every line of code so there is a lot of information on how the system works.
Here is what it looks like:
The Sensor Node
The Base Station
The Plant Friends App
BTW I love adding heatsinks to my Pi! haha. I am very happy with how this turned out. The sensor node runs on 4x AAA batteries and I am able to get a little over 5 months of life out of it by taking a reading every hour and have the sensor node go to 'sleep' the rest of the time. I also added a battery meter too!
Some stuff is still really rough. Mainly the web interface to add sensor nodes into the database. The app looks nice but missing some functionality like scrolling through the list of nodes (lol) and the ability to edit sensor node information. I have other plans for the app like adding sensor nodes to the system and controlling ( an army?) of sensor nodes so i'll be working on that.
The main python script that runs on the Raspberry Pi and the sensor node / gateway code all works great.
Oh and all the enclosures are made out of bamboo! All the pieces snap together and doesn't require glue. Now I am going to experiment with finishing the bamboo with oils, staining, painting it etc.
The how-to tutorial instructable is here:
My source code is on GitHub:
If you like my Plant Friends enclosures, you can buy it from me here:
This is an on going project for me so expect more fun stuff in the future.
Comments, suggestions welcome!