Final board specs, provided nothing shows up in testing
XY Size: 18.7x18.0mm
Thickness: ~1.6mm (substrate thickness and component selection dependent)
Component count: 36 total, 17 different types (Some of which are optional e.g. fpc connector)
All components available on LCSC
LCSC BOM cost for 5 with all optional components: $16.92 total (Less than 4 bucks each!!!)
JLCPCB cost for 5 0.6mm green FR4 boards with HASL finish (ugly but functional): $4.30 (order with tented vias for the sake of your sanity)
JLCPCB Stencil cost for 100x100 stencil without frame: $7.00
Shaping up to be a very cost effective little development board!
whilst you can assemble the boards without a stencil and solder paste i strongly recommend it, it makes the process much faster and easier. I assembled the boards pasting by hand because i forgot to order a stencil which also worked, and you could use an iron and reeled solder if you were insistent on saving money but honestly dont bother. Get a tube of t5 leaded chipquik solder paste and reflow it on tinfoil on a hotplate of some sort. Also recommend paying the extra for an electropolished stencil. The LED espeecially will prove tricky without a hot air station at the very least
View attachment 364670
else I'll wait.edit: I assume the ffc connector is for the cpu flex?
