1-July-2020
Attendee
@Austin Patel
@Jackson Paddock
@Mališa Vučinić
@Timothy Claeys
@Thomas Watteyne
@Tengfei Chang
@Kristofer PISTER
@David Burnett
Minutes
@Jackson Paddock
trying to setup simulation
@Austin Patel
still working on the paper
presenting results at 35-40 C communicating
was hoping to piece the different calibration method together, including 2M
@Kristofer PISTER solar voltage and current is changing with temperature as well, conceivable that that impacts
@Kristofer PISTER data at other temperature range? No, just 35-40 C.
@Kristofer PISTER probably room temperature data is also important.
@Kristofer PISTER interesting to see why you have such as small range; big difference is running from solar.
@Austin Patel : smaller 5C range appeared when using solar
@Kristofer PISTER 260uA at 1 sun, sleep current is 150 uA. would be good to get at 1 sun.
@Austin Patel : cannot transmit that often, 1.6mA when transmitting, 100 uF cap across VBAT
@Kristofer PISTER : 280uA 150uA sleeping, 130uA charges cap, filling up cap in <100ms, so you should be able to transmitting 10 packets per second. This calculation should be in the paper.
@Austin Patel : created https://crystalfree.atlassian.net/wiki/spaces/SCUM/pages/481099849 and https://crystalfree.atlassian.net/wiki/spaces/SCUM/pages/481099909
@Tengfei Chang
Overview:
Figures almost done, preparing paper for SenSys.
Firmware update merged
EDHOC update (LAKE WG)
Unexplained gaps in the histogram
@Kristofer PISTER looks like gaps have a certain structure
@Thomas Watteyne Not a bin artifact when calculating the histograms (aliasing?)
try with another number of bins?
@Kristofer PISTER Run through certification test to show it is standards compliant (100% @ +/- 40 pm)
@Kristofer PISTER frequency offset measured on OpenMote of 13/14 corresponds to 40 ppm
Figures showing LC frequency over changing temperatures
10 packets per second, heat up, record offset and temperature (and group by temperature)
whiskers (min/max ?), no outliers
@Timothy Claeys
goes through changes in OpenWSN
done: some bug fixes, big change: stack config now merged into main dev branch
todo: some further bugs, with larger networks
next:
working on ECC SW implementation
checks in the CI environment
Flake8(https://flake8.pycqa.org/en/latest/, Python) already in PRuncrustify(https://github.com/uncrustify/uncrustify , C) included soon, once we agree on the uncrustify configuration file
@Thomas Watteyne
Some French Regions want to give us 10k for the Hornet project
They ask for plans (commit to dates)
France-Berkeley-Fund gave us an award
Cite des Sciences: big science museum (exhibition on robots) → advertising micro-robots (permanently or temporarily)