This ticket holds the inspection, build, and testing of the first PCBA to be built 100% to completion. As arrived from PCB:NG the PCBA's contain all circuitry except through hole components, GPS, and SMA connector. During inspection several key verification need to be addressed:
Inspect all solders across the boards builds
Note any cold solders, suspiciously small solder fillets, etc...
This board booted good! Have tested basic CC430 operations, no RF. Bryce and I are inspecting for general concerns, no operational issues noted yet but noting anything that looks potentially an issue. We're use to hand soldered components so our experience with automated solder paste fillets are minimal.
U14 (Balun) solder looks insufficient, may not have fully wetted, marginal? Concerning.
U14 Solder ball underneath?
X2 has solder ball underneath component
X1 Solder ball underneath
C5 Looks OK but might be marginal on wetting to PCB
P1 Flux left on board, was it cleaned? Not a huge deal.
C23 has some solder balls underneath
U1 Is slightly skweded towards counter-clockwise, probably still in spec but noting for thoroughness
U4 Pins 1,2,3,4 not sure if fully wetted. Likely fine but noting for thoroughness.
Mousebites could be smoothed a bit
Soldering SMA Connector
Solder SMA connector on, looks good! Verified a quick RF test commanding a REV B1 Faraday remotely, the CC1190 and RF circuitry work! Not sure on performance but seems like a great start.
This ticket holds the inspection, build, and testing of the first PCBA to be built 100% to completion. As arrived from PCB:NG the PCBA's contain all circuitry except through hole components, GPS, and SMA connector. During inspection several key verification need to be addressed:
Solder Inspection
This board booted good! Have tested basic CC430 operations, no RF. Bryce and I are inspecting for general concerns, no operational issues noted yet but noting anything that looks potentially an issue. We're use to hand soldered components so our experience with automated solder paste fillets are minimal.
Soldering SMA Connector
Solder SMA connector on, looks good! Verified a quick RF test commanding a REV B1 Faraday remotely, the CC1190 and RF circuitry work! Not sure on performance but seems like a great start.
Verified RF telemetry transmissions: