I'm building a weather station that consists of a raspberry pi (with connected sensors) and an additional sensor powered from its own 12V supply. Currently (in an unfinished state) the setup I have is a simple mains-powered (230V) power strip in the enclosure, with the respective 12V and 5V transformer blocks for the two devices plugged into it. I now need to simplify this so I have a single outer "entry point" for the electricity at 12V, as opposed to the current 2 "entry points" (the two transformers) at 230V.
I'm looking for a converter to convert first from mains 230V down to 12V, which will be used to power the 12V sensor, and then another converter that will also be connected to the 12V converter output, to convert down to 5V which will be used to power the raspberry pi. The current 12V transformer block I'm using is 12V at 500ma, 6VA and the current 5V transformer block I'm using is the official raspberry pi one (5.1V at 2.5A). I assume that means I need a 12V converter rated for 3A and a 5V one rated for 2.5A.
These need to be "stripped down" converters with terminal block connections, rather than consumer-oriented power supplies with big, solid, enclosed builds, long wires and a mains plug attached (which is what I am currently using).
Do you have any ideas on what the best two converters for this would be? I've been looking around for some time but haven't got very far. Thanks.