Just found out Anne Chambers has another book about the fella who lived at Belcarra Castle:
http://www.graceomalley.com/shadow_lord.php (ordered 3 copies :))

The goal of the project is to capture images of fields around Belcarra, Mayo (https://en.wikipedia.org/wiki/Belcarra,_County_Mayo) in the evening after a hot day to see if any buried stonework appears indicating where Belcarra Castle was.

I first heard of the castle in Anne Chamber's excellent book Chieftain to Knight (http://www.amazon.com/Chieftain-Knight-Tibbott-1567-1629-Viscount/dp/0863270085)


 

Background info

Here's a good background on FLIR:
https://en.wikipedia.org/wiki/Forward_looking_infrared

And here's the module I'm going to hook up
https://groupgets.com/campaigns/111-flir-lepton-thermal-imager-round-9

I intend to have it store and forward images (using Bluetooth/Wifi) keeping the total size of the unit to a minimum so it can be mounted on kites, drones, etc.