I’ve just discovered GrovePi and I’m very interested in using this for a little home project. I’m hoping this community can point me in the right direction.
Our idea is to use a Raspberry Pi 3 to monitor our boat for 3 events:
- Water in the boat (is over the floor and therefore perhaps sinking as it sits in our boathouse)
- Is there power being delivered from the outlet to charge our battery (we leave our battery on trickle charge but want to make sure the outlet the charger is plugged into is working and hasn’t tripped)
- Being able to deliver results of the above two monitors via SIM card. I’m still working out if we’ll be able to have Internet to the boathouse. Ideally this would be best as then the Pi3 could use it’s wifi.
We’re very early in thinking about doing this project. I’ve heard about GrovePi while reading the Pi Forums and thought this would be a great product for us to use for our little project. But I’m now in the stage of seeing if the various connections we need are available for the GrovePi.
I really like how the GrovePi allows us to easily add the hat to the Pi3 and add as many connections as we need. I suppose our 2 connections means we don’t need to have the full 15 like the GrovePi has but I haven’t seen any other hats with connections like the GrovePi with less ports.
As I begin thinking about this project a number of questions come to mind:
- Is there a case available for the Pi3/GrovePi that will be waterproof but has sealed ports for the various monitors to connect outside this case? In our case we’ll have two monitors. I see cases on the dexter website but none are waterproof.
- I see there is a Grove water sensor - Model: SEN113104. If we put this near the bottom wall of the inside of the boat, how wet can this sensor get? Is it only the bottom (breadboard) part? What if the wires or the connector the wire fits into on this sensor. I’m thinking of a drastic scenario where the boat filled up fast…will the sensor not work if the entire sensor and cable was submerged in water? Ideally I think a one wire water sensor would be ideal but all I can find on the dexter site is a one wire temperature sensor. Or adafruit has a one wire water sensor - DS18B20 but it doesn’t have the end on it to connect to a GrovePi.
- In finding a sensor that will tell me if my charger is not getting power from the nearby outlet…my thought is to use a battery backup type system on the Pi and have it also plugged into mains power. If mains power is lost, the battery backup kicks in and an alert is generated that mains power is lost. I see lots of battery type systems on dexter webiste related to robots. Is there a battery backup available to what I need that will work with the GrovePi attached as well?
Like I said, I’m at the very early (shooting around ideas) stage of this fun little project. Any pointers or ideas you can give me would be greatly appreciated by my kids and I.