General Subteam Meeting
- We started by discussing options for microcontrollers. Any of the STM32H7 varieties look pretty good - they should have a maximum radiation dose of around 47 kRad, which should be more than sufficient. They cost ~$20 and are space-rated, which is great!
- Next, each person chose a subteam to focus on. We each read a subteam's meeting notes to determine how they need to be incorporated into the electrical system so that we can place them on our block diagram. We put together some notes on the Miro and then started putting together a basic block diagram.
(Image shown above: our notes about what each subteam requires electrically)
(Image shown above: our rough block diagram)
- We were still unsure how the sensor suite will interface with OBC, hence the triangle with question marks.
- Red lines for power, blue lines for data.
- Some resources about CAN bus were sent in #ether-electrical on Slack.
Check-in with Pranav
- We need to start thinking about how our power board will interface with Oligo. We can choose how it will interface, and we will then need to produce an ICD (Interface Control Document) to communicate to them our needs. It will likely be something of the RS variety (Pranav pointed towards RS422, RS45, RS232) and will probably use UART.
- It sounds like we are leaning towards processing data on the ground instead of on the satellite.
- Our immediate next steps now should look something like this:
- Make a broad power budget based on what information we do have from the other subteams. This includes reaching out to the subteams that haven't already identified their power needs. The power budget will be updated as we go, but having a basic idea of how much power we need will help inform our power interface needs.
- Look into power interface options and put together an ICD. Communicate this with Oligo!
- Start on power board!