My accomplishments this week:
- Further touched up rev. 1 of the PCB assembly. See attached photos (not quite as up-to-date as the similar ones included in our design review):
- I’m still on schedule regarding revision 1
- Minor changes to schematics
- Added external 1KR pull-ups on the XB reset lines, because I don’t trust us to remember to use the internal STM pull-ups
- Added commissioning button to enable WPS mode more easily on the Wi-fi XBee
- Minor changes in the PCB design made this week:
- Fixed some designators, rerouted a few nets, shrunk all vias to 32/16mil, added a commissioning button, added some silks to enhance user experience (labeled radios), rearranged transceiver board to map consistently left/zigbee and right/wifi, changed pour reliefs, changed transceiver board corners to curves, added a footprint, etc.
- Worked on and rehearsed for our design review
- My total time spent on it was 6+ hrs., as I’ll be the one presenting
My personal deliverables for next week:
- Board ordered by mid-week
- I’ll then transition into firmware writing/testing + antenna testing mode until rev. 1 gets here
- Migrate development from our tags to our trunk folder
- Yes I’m a big dumb idiot
Updates on last week’s deliverables:
- Mounting hole positions decided on at .15″ inset from a 2×2″ square board ✓
- Range test was successful at 250-300m using our current antenna pairing, but inconclusive at 500+m; See the team’s status report for more details