Attending

@Jove Yuan
@Lydia Lee
@Kristofer PISTER
@Titan Yuan
Raymond?
@Felipe Campos
@Ahad Rauf
Brian Kilberg
@Thomas Watteyne [remote]
@Tengfei Chang [remote]

Action Items

@Thomas Watteyne to commit working TSCH code to repo

@Tengfei Chang to create Jenkins job which runs SCuM tests, @Lydia Lee to install hook

Minutes

@Tengfei Chang
- gives an update on the software workflow
@Thomas Watteyne
- upload your pic to your profile
- getting page contents programmatically
@Lydia Lee
- getting rid of ASC magic number
- discussion about #define vs enum vs variables
@Jove Yuan
- optical programmer upgrade
- random spikes on the programmer
- mote isn’t receiving everything, something isn’t been received, debugging
- performance depends on the chip, may be because reflections in the package
- @Kristofer PISTER : right path forward? can we get a visible light LED with a broad enough spectrum and that is fast enough (1MHz?)
- @Kristofer PISTER : good ideas, send to Jove
- @Kristofer PISTER : try out the different angles
- @Kristofer PISTER : do we have a circuit explanation why we can program, but not calibrate?
- limitation of the analog discovery to capture the SFD (??)
- Jove to talk to Kris
@Titan Yuan
- SCuM to OpenMote calibration
  - looking at OpenMote serial port ()
    - length
    - coarse
    - mid
    - fine (0..31)
    - RSSI
  - many lost packets, valid RSSI
  - is SCuM sending the wrong packet contents with the right CRC?
  - @Kristofer PISTER : make sure to explain detail
  - 01bsp_radiop_rx is what is running on OpenMote
  - Scum sends million packets to OpenMote only couple of packets is received
  - @Kristofer PISTER : please check whether you are checking CRC
- BLE:
  - couldn’t get BLE to work on Q4
Raymond?
- BLE transmitting
- looking at beacon apps. Formats: Apple has iBeacon, Android has Eddystone which includes telemetry data. THere are Android/iPhone apps that display this.
- @Kristofer PISTER : please do a presentation on apps which do things with BLE beacons; find what to do on SCuM to send data to those apps
- let’s demonstrate the world’s smallest compatible beacon
@Felipe Campos
- SCuM with interrupts, not using Brad’s polling code, instead use capture registers (see Sahar's code)
- will lowering timing errors (lighthouse, etc)
- lots of problems from UART
@Ahad Rauf
- SCuM current testing
- the high current chips where due to ASC settings (ldo’s, ADC, etc were on)
- solution was to onto change certain bits in the ASC
- weird: if changing the ASC setting from setting1 to setting2 doesn’t change the current. You need to power cycle the mote when going from setting1 to setting2.
- enabling/disabling on-chip LDO
- when unprogrammed, switches between 250uA and 350uA
Brian
- looking at debouncing the lighthouse signals
- processor speed used? 20 MHz?
- cool demo on 3D localization with lighthouses on SCuM

Admin

can projecting computer also join the meeting and share screen?
encourage people to create accounts on crystalfree.org (and upload pictures)