I just got my solar system setup! 4-300watt mono-crystaline panels and 4 150ah deep cycle batteries.

The controller unit comes with an RJ54 port labeled RS232 and an rj45 to rs232 cable… quite usles as i dont have any laptop with an rs232 port… and i wont want to stand in front of the controller each time just to view readings…

I have Raspberry-Pi 3.0 (or 2.0 not too sure)

I would like to build a setup where readings can be collected continuously and uploaded to my online SQL Server from where I can have a proper real-time display of power consumption charts on the go, as well as alerts when the mains power goes off or on.

Too much?

I’m working (very slowly, a couple of days per year) on a game called DuckTag. It’s basically laser tag but with RFID tags instead of lasers, you’d have a tag reader on your back that you are trying to protect and an RFID tag on your hand that you try to tag others with. When tagged, you’ll have to go to a respawn point to get back into the game.

Currently it’s at the point where the RFID reading works, the devices boot and network with each other, and start an Mnesia database that handles all the data updates. Very rudimentary game logic has been added, mainly to test things. There’s issues with reliability though, it feels like sometimes the devices aren’t running their supervisors or get stuck on something and I have to boot them up many times.

Next step would probably be to modify it so that I can just start all the nodes on my laptop in terminal screens instead of the actual hardware, to make it easier to develop. It’s too much work to set up all the boards and chargers and memory cards every time (since it’s 5 boards minimum: 2 players, 2 respawn points, 1 “judge” that coordinates things).

The pretty horrible code is available here: Mikko Ahlroth / duck-tag · GitLab

This is a really interesting idea.
https://www.amazon.com/Seajunn-precision-quality-detection-sensors/dp/B07CNJBV9L/ref=sr_1_3?ie=UTF8&qid=1543969944&sr=8-3&keywords=SDS011

For about $35 dollars, you can get this sensor and a PI to drive it. I’d love to see some distributed stats being reported!