This kit contains everything you need to build the Pi-Hat module, essentialy the Brain of Marine Assistant. This piece of the marine assistant "pie" runs the Home Assistant software and talks to other hardware and sensors. 
 
What can I conect to the Pi-Hat?
There are 10 ports for I/O, you are free to connect any sort of binary sensor, Binary meaning either on or off. Float switches or leak sensors for example. Anything that closes the circuit will work. 6 of these ports have 3,3v power and 4 have 5v, but be carefull with the 5v as the Raspberry pi Gpio header can only handle 3,3v!
There are 2 12v switchable outputs, light up your filter cabinet with an led strip for example.
There are also i2c connections to enable you to connect the Pi 7" Touchscreen. Work on the code and instructions for this are still to come.
Many wireless divices, anything that is compatible with Home Assistant will work fine. there are litteraly hundreds of divices. For example the TP-Link Tapo 240v switchable plugs,  controll pumps, lights, skimmer.... anything that uses 240v and monitor its power usage. 120v divices are also available for US users.
Custom Breadboard, Want to add your our circuitry? this is the perfect place for that, 6 extra Gpio pins aswell as different power output are all available for you to add whatever you like. 
 
Included:
Professional PCB
all components needed to complete the Pi-Hat
screws and spacers to fix the Pi-Hat into the case
3d printed parts for the case.
Threaded inserts and screws for case
 
What will you need to supply:
Raspberry Pi (4 or 5)
Power supply plug (12v at 2 amps)