Kris
Lydia
Brad
Felipe
Fil
Titan
Jove
Meera
Tengfei [remote]
Thomas [remote]
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.