EE End-of-Semester Update

[James Irwin]

Here is a brief report on what the EE team has done so far:

• LED indicator test bench for testing thruster controls out of water
• Sensor reading of accelerometer, gyroscope, depth sensor, and battery voltage
• Microcontroller command of thrusters
• Software on computer side for communicating with the microcontroller
• Analog circuit design for battery monitoring
• Selection of parts for new submarine
• Wire color convention created

New Tasks:

• Finalize microcontroller selection
• Design PCB for new sub
• Analog circuit design for safety cutoffs
• Order sensors/thrusters/batteries
• Fix bug in microcontroller code
• Choose/order connectors
• Build it!

[raygunn13]

Have we found a convenient way to collaboratively attack the PCB design? Have we settled on communicating over Google groups with intermediate designs and general PCB layouts? Also: can I get a link to the PCB design software we are going to be using?

Thanks,

Nathan Ray

[luke.renaud]

Nothing explicit, but to be honest the main PCB layout is actually a pretty trivial step. For now we need the following:

1) A list of expected board inputs and outputs; i.e. what connections we will need, and a list of signals that will be going along with them.

2) A list of needed ICs onboard (µC, any vRegs if we don't do them externally, IO extenders, level shifters, usb-uart chips, etc)

These two should be produced in conjunction with the electrical diagram (which we still lack).

[luke.renaud]

Where is the list of the sensors we selected? I know it was aggregated at some point, but I can't figure out where it went?

-Luke

[raygunn13]

https://docs.google.com/spreadsheet/ccc?key=0Ao_DMuWfbXrxdGExeDV4dGVlTTlOX1FvMGZzY29fVWc#gid=0