Upon my return from my Central Europe tour (realistically – Belgium and Germany), I had the parcel everybody loves, A lovely little cuboid from Itead Studio! Contained within were my Eon Smart Watch 3 PCB’s, the ultimate model.
As with always, I set to building then pretty soon after receiving the PCB’s as they were the last to arrive.
After fully populating the board, I plugged it into my laptop, as per and realised that it didn’t seem to be working! As per usual, I looked over all solder joints and checked over my eagle schematic and too my horror, on my STM32L model, I’d put a VDD pin where a VSS pin should be and vice versa, disaster!
Fortunately, the two pins were in close proximity and I should be able to make a small link using a bit of wire. Still annoying to have got such a petty problem wrong though. On the plus side, my 0603 soldering seems to have improved largely over the last watch and its looking much sleeker.
Hopefully, Watch 3 will soon be completed and I can start writing a better colour GFX library, along with adding cool features like shake-wake and bluetooth.