...
- Andrew Fearing to get a quote from Gold Phoenix.
- Austin Patel and Jackson Paddock to go in the lab to test the small boards, including UART.
- Kristofer PISTER and/or David Burnett and/or Fil Maksimovic to review the design of the large board with Joshua Alexander .
- Alex Moreno to follow up with Smart Bandage team to see if existing Hornet Slayer board with battery holder will work for them
- Fil Maksimovic to show Austin PatelAndrew FearingJoshua Alexander his 20948+SCuM+battery_holder board design and software that was used to read IMU and send RF packets. Software is in a repo somewhere hopefully?
- Kristofer PISTER to talk to Lydia Lee about whether her new optical receiver will be able to handle Lighthouse 2 signals, and if we have any Lighthouse 2s lying around the lab.
- Assuming NRF testing is successful, Kristofer PISTER to find someone to design a board that plugs directly into the NRF board with no need for jumpers.
Minutes
small board
Austin Patel and Jackson Paddock will be going in the lab to test the small boards
Does current look right when applying VBAT
Does GPIO0 go high
Does optical programming work
Does UART work
Does RF work
we need to rev the small board with a connector for the antenna, so thus this assembly is just test fundamentals
rev the board, given the specifics, costs close to $1k
Fil Maksimovic : you could use https://www.goldphoenixpcb.com/
Austin Patel to update notes
will use optical first, then 3-wire bus with Teensy, then maybe 3-wire bus with nRF
Andrew Fearing to get a quote from Gold Phoenix
Kristofer PISTER we should review the board review from Joshua Alexander ?
Carol
would like to use small board for smart bandage project
can I get a small board?
Austin Patel can build a second board
discussion about reuse the HornetSlayer PCB for the band-aid. MEng team could use it.
Alex Moreno we have rigid board for Hornet as well (on top of the flex PCBs). Plenty of board to test with.
Kristofer PISTER maybe we could use a couple of Hornet Boards
discussion about board design
Alex Moreno VBAT, GND, antenna trace
Kristofer PISTER : what happened to board from Fil Maksimovic
Fil Maksimovic : have design files. Only problem is the contact with the battery holder. Has been solved since?
Andrew Fearing the XL on the small board is the the InvenSense ICM-20948
discussion about regulator
Should test UART as well when testing small board.
Alex Moreno indicates had put together battery testing data with Austin Patel
Alex Moreno happy to show how does the assembly
working on Atlas algorithm, some finalization on the robot simulator
deadline for DCOSS pushed to 31-Mar-2021
had a presentation about vision for DotBot
Fil Maksimovic and Said Alvarado-Marin
lighthouse 2 reverse engineering
looked at the modulated laser from the lighthouse
discussion about inter-symbol interference
doesn’t konw if anyone has been able to decode lighthouse system on a small uC. Crazifly did it on an FPGA
Said Alvarado-Marin connect to the serial console in the back of teh LH2. You can change the mode of the lighthouse. Extracted full list of polynomial. Dump command.
discussion about Martina and Andreia
startup voltage of the nRF52840
limit on the amount of current the VDD pin can source 7mA max when radio on, otherwise 20mA
Fil Maksimovic confirm that’s plenty
1.21 GW not necessary
SCuM receiving LH2 signal - no info yet?