Circuit Board design with the exception of the antenna and all respective parts (except the nRF51422 which I already have in my possession) have been ordered. They should arrive Tuesday or Wednesday which will allow me to check to make sure all the parts fit the pads I’ve outlined on the board and make any needed edits. During this time I’ll design the antenna.
Currently the board is 26mm x 32mm. It might have to get wider to accommodate the antenna slightly as I do no wish to use a meander trace. I want either a trace antenna or an IFA. I might make separate board with a ceramic antenna.
I’ve been given the suggestion to include an SMP connection such that a network analyser could be used to tune the antenna. I am going to try the technique where you make the antenna too long and cut it back. I’ve read about people tuning with a basic RF spectrum analyser with this method which is cheaper for me. (RF spectrum = 200 dollars, network analyser = thousands).
I need to spend some time on the silk screen labelling. It’d be an amateur mistake not to spend more time on this as it really helps clarify what the parts are for future debugging.
Total cost of all associated parts is somewhere in the vicinity of 30 – 40 dollars. However, I’ve been quoted at prototype assembly at 70 – 90 dollars a board. More motivation to finish the reflow toaster.