I have decided to complete this project portal, as i opened a new one that is based on the final device

https://hackaday.io/project/12063-vesprino

I am happy that in fact i have overachieved (in my opinon only of course :)) ) my initial goal

• The cost of the device is kept as low as possible
• I managed to streamline the extension ports and now they are all on one side of the board, making it extemely bread-board friendly. And also having them as female headers on the edge of the box, makes it very simple to really extend the device with additional sensors

I really would like to productize this device so i am going to start a crowdfunding campaign as it needs to scale so that production costs can be.

For anybody interested i've created a subcription list, where i would send notifications once the campaign is started (hopefully)