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 Theses & Papers and Project Code

• @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 PR

      • uncrustify(GitHub - uncrustify/uncrustify: Code beautifier , 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)