The Smart Case
Then Smart Case is plastic weather proof case with a connector on the top which is held by the Pigeon and a base which can be clamped and held by a Perch. The Case will have two RFID tags, one with it's unique Smart Case ID code and the other with the PPPV Code.
The Smart Cases will come in be various sizes and can fit onto the Coops like Legos squares onto a Lego board.
Standard Case Sizes:
- 15cm by 10cm base - Small items, 5 DVDs, 2 bottles of wine.
- 15cm by 21cm base - Loads of A4letters.
- 15cm by 32cm base - Much larger objects.
- 31cm by 21cm base - Things
- 31cm by 32cm base - Huge Things
- 10cm by 32cm base - large flat items on the side.

The containers space is always 30cm deap with the Top Plate and Base Plate adding 1cm each to total 32cm.
The container part of the case can be any size or shape as long as it fits within the designated volume.
For ease of storage cases can be designed to fold flat and stack on top of each other. The most compact way is to make a case which can compact down into the 1cm base and top plates and stacked on top of each other. This means that 15 compacted cases can be stored in the space of standard case.
At present the current Smart Case Version is 0.2.1
You can download it here: Smart Case Version is 0.2.1