This module will be a simple power regulator for the rest of the balloon modules. It will regulate the power from a common voltage battery pack out to several required voltages.
Key differences from original design:
One 9-13.5v pack will be present to serve two commercial 3.3v and 5v regulator boards, and provide raw voltage for ~12v output as well. There will be several strings in parallel to provide for long duration operation.
Power output should be:
This will connect to the main White Star Bus, providing power to all other modules connected to said bus. Please see the hardware specs for the White Star Bus 7-Pin connector. The connector must implement power as well as I2C communications.
The Temp sensor that extends into the battery pack should be logically on the main I2C bus, but the power controller microcontroller needs to identify it in device scans.
Single String Cells: 10
Pack Starting Voltage: 15
Pack Depletion Voltage: 10
Capacity per string: 3000mAH @ 0C for 1A draw
_ –> Power Controller Board
 –> 10 batteries (one string)
There will be five(5) strings of ten(10) batteries and one(1) string of four(4) batteries for the cut-down.
In column 1, from top to bottom: power controller, string of four, string of ten, string of ten.
In column 2, from top to bottom: string of ten, string of ten, string of ten.
Bold indicates must be set for flight.