Thanks, vicatcu, that’s good info to know re: the differences btwn the two versions. David’s tutorial includes the DIY Wildfire version so I thought I’d try that.
There’s no bill of materials on the Wildfire product page, so I exported the parts list from the Eagle files. Most of it is clear except for the 59 highlighted items (pages 4-7 in the pdf link.) I assume are just open/ unused pins, etc because no product is listed, but can you confirm?
For example the first of three items are listed as:
U$5 1PIN 1PIN wicked-device (2.5 2.2) R0
U$6 1PIN 1PIN wicked-device (2.4 2.2) R0
U$7 1PIN 1PIN wicked-device (2.3 2.2) R0