Fantastic news, Alasdair. Indeed timely. I was wondering what the finiancial impliation for one unit will be? A price range will suffice. Thanks.
Here is another TEG that looks promising.
Texas Instruments bq25570 Ultra Low Power
Harvester Power Management IC
https://www.mouser.com/new/Texas-Instruments/ti-bq25570-power-management... (read more)
Subcutaneous pittags that also read temperature (frustratingly) read only a limited range of temperatures - however, I hear that can be hacked. Does anyone have experience with that? (read more)