Attendees

• Kris

• Lydia

• Brad

• Felipe

• Fil

• Titan

• Jove

• Meera

• Tengfei [remote]

• Thomas [remote]

Action items

Notes

• power consumption looks OK, around 300uA

• Felipe Campos ?

  • lighthouse localization

  • 2m range for picking up pulses, sensitive to angle of incidence , question about lens

  • approx. 45 degrees, the further from the lighthouse, the narrower

  • we haven’t tried to use the lenses Brian bought

  • Brad’s code works

  • 8 pulses with 2 lighthouses, a 30Hz, you don’t image that changes too much, interisting filter to filter which lighthouse emits what

  • pulse length: 50-150 us

  • looking to get x,y,z position. You need to calibrate

• optical programmer update (Jove)

  • laser must be close to chip

  • bootloading takes less than 10s, not sure whether we want to go faster

  • optical calibration does not complete, debugging why

• Lydia update

• SCuM LC Calibration [Titan]

  • not best approach to simply store all coarse+mid+fine codes, such that they are monotonic

  • use mid0 and coarse0, calibrate for each coarse code

  • simulator result, on the left what the RC sweep looks like

  • simulator result looks linear, outliers, but is monotonic

  • using the LC count within every 100ms, using optical interrupt

  • discussion about LC count vs. LC monotonic

  • plan is to, during optical calibration, we run this calibration

  • the fine lsb is about 40 ppm

  • discussion about next steps: measure twice, skip some mid codes to minimize number of fine → mid rollovers

• update from Paris [Thomas, Tengfei]

  • links

  • next steps: getting base test running on Jenkins

• Fil: update about radiation from SCuM

  • goal: baseline radiation to compare with wirebond antenna

• Meera

  • working on debugging

• update from Craig: 3C driving Zappy2 with an external HV supply, driving inchworm-based gripper when 3C detects a button press.